Tithonian
Encyclopedia
In the geologic timescale the Tithonian is the latest age of the Late Jurassic
epoch
or the uppermost stage of the Upper Jurassic series
. It spans the time between 150.8 ± 4 Ma and 145.5 ± 4 Ma (million years ago). It is preceded by the Kimmeridgian
and followed by the Berriasian
stage (part of the Cretaceous
).
in 1865. The name Tithonian is unusual in geological stage names because it is derived from Greek mythology
. Tithonus
was the son of Laomedon
of Troy
. He fell in love with Eos
, the Greek goddess of dawn
and finds his place in the stratigraphy
because this stage, the Tithonian, finds itself hand in hand with the dawn of the Cretaceous.
The base of the Tithonian stage is at the base of the ammonite
biozone
of Hybonoticeras hybonotum. A global reference profile (a GSSP or golden spike) for the base of the Tithonian had in 2009 not yet been established.
The top of the Tithonian stage (the base of the Berriasian stage and the Cretaceous system) is at the first appearance of fossil
s of ammonite species Berriasella jacobi
in the stratigraphic record.
The Tithonian stage contains seven ammonite biozones in the Tethys domain
, from top to base:
fauna. The Solnhofen limestone
of southern Germany
, which is known for its fossils (especially Archaeopteryx
), is of Tithonian age.
.; 1865: Die Tithonische Etage, Zeitschrift der Deutschen Geologischen Gesellschaft, 1865: pp 535-558.
Late Jurassic
The Late Jurassic is the third epoch of the Jurassic Period, and it spans the geologic time from 161.2 ± 4.0 to 145.5 ± 4.0 million years ago , which is preserved in Upper Jurassic strata. In European lithostratigraphy, the name "Malm" indicates rocks of Late Jurassic age...
epoch
Epoch (geology)
An epoch is a subdivision of the geologic timescale based on rock layering. In order, the higher subdivisions are periods, eras and eons. We are currently living in the Holocene epoch...
or the uppermost stage of the Upper Jurassic series
Series (stratigraphy)
Series are subdivisions of rock layers made based on the age of the rock and corresponding to the dating system unit called an epoch, both being formally defined international conventions of the geological timescale. A series is therefore a sequence of rock depositions defining a...
. It spans the time between 150.8 ± 4 Ma and 145.5 ± 4 Ma (million years ago). It is preceded by the Kimmeridgian
Kimmeridgian
In the geologic timescale, the Kimmeridgian is an age or stage in the Late or Upper Jurassic epoch or series. It spans the time between 155.7 ± 4 Ma and 150.8 ± 4 Ma . The Kimmeridgian follows the Oxfordian and precedes the Tithonian....
and followed by the Berriasian
Berriasian
In the geological timescale, the Berriasian is an age or stage of the Early or Lower Creteceous. It is the oldest or lowest subdivision in the entire Cretaceous. It spanned between 145.5 ± 4.0 Ma and 140.2 ± 3.0 Ma...
stage (part of the Cretaceous
Cretaceous
The Cretaceous , derived from the Latin "creta" , usually abbreviated K for its German translation Kreide , is a geologic period and system from circa to million years ago. In the geologic timescale, the Cretaceous follows the Jurassic period and is followed by the Paleogene period of the...
).
Stratigraphic definitions
The Tithonian was introduced in scientific literature by German stratigrapher Albert OppelAlbert Oppel
Carl Albert Oppel was a German paleontologist.-History:He was born at Hohenheim in Württemberg, on December 19, 1831. He first went to the University of Tübingen, where he graduated with a Ph.D. in 1853. The results of his work was published in Die Juraformation Englands, Frankreichs and des...
in 1865. The name Tithonian is unusual in geological stage names because it is derived from Greek mythology
Greek mythology
Greek mythology is the body of myths and legends belonging to the ancient Greeks, concerning their gods and heroes, the nature of the world, and the origins and significance of their own cult and ritual practices. They were a part of religion in ancient Greece...
. Tithonus
Tithonus
In Greek mythology, Tithonus or Tithonos was the lover of Eos, Titan of the dawn. He was a Trojan by birth, the son of King Laomedon of Troy by a water nymph named Strymo . The mythology reflected by the fifth-century vase-painters of Athens envisaged Tithonus as a rhapsode, as the lyre in his...
was the son of Laomedon
Laomedon
In Greek mythology, Laomedon was a Trojan king, son of Ilus, brother of Ganymede and Assaracus, and father of Priam, Astyoche, Lampus, Hicetaon, Clytius, Cilla, Proclia, Aethilla, Medesicaste, Clytodora, and Hesione...
of Troy
Troy
Troy was a city, both factual and legendary, located in northwest Anatolia in what is now Turkey, southeast of the Dardanelles and beside Mount Ida...
. He fell in love with Eos
Eos
In Greek mythology, Eos is the Titan goddess of the dawn, who rose from her home at the edge of Oceanus, the ocean that surrounds the world, to herald her brother Helios, the Sun.- Greek literature :...
, the Greek goddess of dawn
Dawn
Dawn is the time that marks the beginning of the twilight before sunrise. It is recognized by the presence of weak sunlight, while the sun itself is still below the horizon...
and finds his place in the stratigraphy
Stratigraphy
Stratigraphy, a branch of geology, studies rock layers and layering . It is primarily used in the study of sedimentary and layered volcanic rocks....
because this stage, the Tithonian, finds itself hand in hand with the dawn of the Cretaceous.
The base of the Tithonian stage is at the base of the ammonite
Ammonite
Ammonite, as a zoological or paleontological term, refers to any member of the Ammonoidea an extinct subclass within the Molluscan class Cephalopoda which are more closely related to living coleoids Ammonite, as a zoological or paleontological term, refers to any member of the Ammonoidea an extinct...
biozone
Biozone
Biostratigraphic units or Biozones are intervals of geological strata that are defined on the basis of their characteristic fossil taxa....
of Hybonoticeras hybonotum. A global reference profile (a GSSP or golden spike) for the base of the Tithonian had in 2009 not yet been established.
The top of the Tithonian stage (the base of the Berriasian stage and the Cretaceous system) is at the first appearance of fossil
Fossil
Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...
s of ammonite species Berriasella jacobi
Berriasella
Berriasella is a discoidal evolute perisphinctacean ammonite, and type genus for the neocomitid subfamily Berriasellinae. Its ribbing is distinct, consisting of both simple and bifurcated ribs that extend from the umbilical seam across the venter; its whorl section generally compressed, the venter...
in the stratigraphic record.
Subdivision
The Tithonian is often subdivided into Lower/Early, Middle and Upper/Late substages or subages. The Late Tithonian is coeval with the Portlandian stage of British stratigraphy.The Tithonian stage contains seven ammonite biozones in the Tethys domain
Tethys Ocean
The Tethys Ocean was an ocean that existed between the continents of Gondwana and Laurasia during the Mesozoic era before the opening of the Indian Ocean.-Modern theory:...
, from top to base:
- zone of Durangites
- zone of Micracanthoceras micranthum
- zone of Micracanthoceras ponti or Burckardticeras peroni
- zone of Semiformiceras fallauxi
- zone of Semiformiceras semiforme
- zone of Semiformiceras darwini
- zone of Hybonoticeras hybonotum
Lithofacies
In the Tethys domain, the Tithonian has a calcareous facies with a typical cephalopodCephalopod
A cephalopod is any member of the molluscan class Cephalopoda . These exclusively marine animals are characterized by bilateral body symmetry, a prominent head, and a set of arms or tentacles modified from the primitive molluscan foot...
fauna. The Solnhofen limestone
Solnhofen limestone
The Solnhofen Plattenkalk is a Jurassic Konservat-Lagerstätte that preserves a rare assemblage of fossilized organisms, including highly detailed imprints of soft bodied organisms such as sea jellies...
of southern Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...
, which is known for its fossils (especially Archaeopteryx
Archaeopteryx
Archaeopteryx , sometimes referred to by its German name Urvogel , is a genus of theropod dinosaur that is closely related to birds. The name derives from the Ancient Greek meaning "ancient", and , meaning "feather" or "wing"...
), is of Tithonian age.
†Ankylosaurs
Ankylosauria Ankylosauria Ankylosauria is a group of herbivorous dinosaurs of the order Ornithischia. It includes the great majority of dinosaurs with armor in the form of bony osteoderms. Ankylosaurs were bulky quadrupeds, with short, powerful limbs. They are first known to have appeared in the early Jurassic Period of... of the Tithonian |
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Taxa | Presence | Location | Description | Images |
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Morrison Formation Morrison Formation The Morrison Formation is a distinctive sequence of Late Jurassic sedimentary rock that is found in the western United States, which has been the most fertile source of dinosaur fossils in North America. It is composed of mudstone, sandstone, siltstone and limestone and is light grey, greenish... , Wyoming, USA |
The smallest and the earliest well-known ankylosaur. Its skull measures only 29 cm in length, and its total body length is an estimated three to four meters. | ||
Mymoorapelta Mymoorapelta is an ankylosaur from the Late Jurassic Morrison Formation of western Colorado. The taxon is known from portions of a disarticulated skull, parts of three different skeletons and other postcranial remains... |
Morrison Formation Morrison Formation The Morrison Formation is a distinctive sequence of Late Jurassic sedimentary rock that is found in the western United States, which has been the most fertile source of dinosaur fossils in North America. It is composed of mudstone, sandstone, siltstone and limestone and is light grey, greenish... , Colorado, USA |
A poorly known early ankylosaurian. | ||
Theropods
Theropods of the Tithonian | ||||
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Taxa | Presence | Location | Description | Images |
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Morrison Formation Morrison Formation The Morrison Formation is a distinctive sequence of Late Jurassic sedimentary rock that is found in the western United States, which has been the most fertile source of dinosaur fossils in North America. It is composed of mudstone, sandstone, siltstone and limestone and is light grey, greenish... , USA |
The most common and most highly studied theropod dinosaur. | ||
Archaeopteryx Archaeopteryx , sometimes referred to by its German name Urvogel , is a genus of theropod dinosaur that is closely related to birds. The name derives from the Ancient Greek meaning "ancient", and , meaning "feather" or "wing"... |
Solnhofen Solnhofen Solnhofen is a municipality in the district of Weißenburg-Gunzenhausen in the region of Franconia in the Land of Bavaria in Germany. It lies within the Altmühl valley.... , Germany |
The late Jurassic is notable for the first appearance in the fossil record of bird Bird Birds are feathered, winged, bipedal, endothermic , egg-laying, vertebrate animals. Around 10,000 living species and 188 families makes them the most speciose class of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from... s, in the form of Archaeopteryx, found in limestone quarries in Germany. |
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Ceratosaurus Ceratosaurus meaning "horned lizard", in reference to the horn on its nose , was a large predatory theropod dinosaur from the Late Jurassic Period , found in the Morrison Formation of North America, in Tanzania and Portugal... |
Morrison Formation Morrison Formation The Morrison Formation is a distinctive sequence of Late Jurassic sedimentary rock that is found in the western United States, which has been the most fertile source of dinosaur fossils in North America. It is composed of mudstone, sandstone, siltstone and limestone and is light grey, greenish... , USA |
Fossils are less common than those of Allosaurus. |
†Basal Ornithischians
Basal Basal (phylogenetics) In phylogenetics, a basal clade is the earliest clade to branch in a larger clade; it appears at the base of a cladogram.A basal group forms an outgroup to the rest of the clade, such as in the following example:... ornithischia Ornithischia Ornithischia or Predentata is an extinct order of beaked, herbivorous dinosaurs. The name ornithischia is derived from the Greek ornitheos meaning 'of a bird' and ischion meaning 'hip joint'... ns of the Tithonian |
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Taxa | Presence | Location | Description | Images |
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Fruita, Colorado, USA | Fruitadens was a heterodontosaurid Heterodontosauridae Heterodontosauridae is a family of early ornithischian dinosaurs that were likely among the most basal members of the group... and the smallest known ornithischian dinosaur, weighing less than 2 pound (0.90718474 kg) and measuring a little over 2 foot (0.6096 m) in length. It is also one of the latest surviving heterodontosaurids known. |
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†Ceratopsians
Ceratopsia Ceratopsia Ceratopsia or Ceratopia is a group of herbivorous, beaked dinosaurs which thrived in what are now North America, Europe, and Asia, during the Cretaceous Period, although ancestral forms lived earlier, in the Jurassic. The earliest known ceratopsian, Yinlong downsi, lived between 161.2 and 155.7... of the Tithonian |
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Taxa | Presence | Location | Description | Images |
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? | Chaoyang area, Liaoning, China | One of the earliest ceratopsians | |
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Hebei, China | A member of the family Chaoyangsauridae, it was one of the earliest ceratopsians | ||
†Ornithopods
Ornithopoda of the Tithonian | ||||
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Taxa | Presence | Location | Description | Images |
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Kimmeridgian to ?Berriasian Berriasian In the geological timescale, the Berriasian is an age or stage of the Early or Lower Creteceous. It is the oldest or lowest subdivision in the entire Cretaceous. It spanned between 145.5 ± 4.0 Ma and 140.2 ± 3.0 Ma... |
Wyoming, USA; England; France | Camptosaurus could be more than 7.9 meters long (26 ft), and 2.0 meters tall (6.7 ft) at the hips. They had heavy bodies but, as well as walking on four legs (quadrupedal), could also rear up to walk on two legs (bipedal). This genus is probably closely related to the ancestor of the later iguanodontid and hadrosaurid dinosaurs. It probably ate cycads with its beak. |
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Lourinhã Lourinhã Lourinhã is a municipality in Portugal with a total area of 147.2 km² and a total population of 24,601 inhabitants. The seat of the municipality is the village of Lourinhã, with a population of 8,800 inhabitants.... , Portugal |
A camptosaurid iguanodont Iguanodont Iguanodonts were herbivorous dinosaurs that lived from the mid-Jurassic to Late Cretaceous. Some members include Camptosaurus, Callovosaurus, Iguanodon, Ouranosaurus, and the hadrosaurids or "duck-billed dinosaurs". Iguanodonts were one of the first groups of dinosaurs to be found... |
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Drinker Drinker was a genus of hypsilophodont dinosaur from the late Jurassic period of North America. Although based on good remains, it remains obscure due to a lack of post-naming publications.-Description:... |
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Dryosaurus Dryosaurus is a genus of an ornithopod dinosaur that lived in the Late Jurassic period. It was an iguanodont . Fossils have been found in the western United States, and were first discovered in the late 19th century... |
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Othnielia Othnielia is a genus of ornithischian dinosaur, named after its original describer, Professor Othniel Charles Marsh, an American paleontologist of the 19th century... |
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Othnielosaurus Othnielosaurus is a genus of ornithischian dinosaur that lived about 155 to 148 million years ago, during the Late Jurassic-age Morrison Formation of the western United States. It is named in honor of famed paleontologist Othniel Charles Marsh, and was formerly assigned to the genus... |
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†Plesiosauria
Plesiosaurs of the Tithonian | ||||
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Taxa | Presence | Location | Description | Images |
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†Pterosauria
Pterosaurs of the Tithonian | ||||
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Taxa | Presence | Location | Description | Images |
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Solnhofen Solnhofen Solnhofen is a municipality in the district of Weißenburg-Gunzenhausen in the region of Franconia in the Land of Bavaria in Germany. It lies within the Altmühl valley.... , Germany |
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Solnhofen Solnhofen Solnhofen is a municipality in the district of Weißenburg-Gunzenhausen in the region of Franconia in the Land of Bavaria in Germany. It lies within the Altmühl valley.... , Germany |
Short head with pin-like teeth, short tail but from a normally long tailed group "Rhamphorhynchoidea Rhamphorhynchoidea The Rhamphorhynchoidea forms one of the two suborders of pterosaurs and represent an evolutionary grade of primitive members of this group of flying reptiles. This suborder is paraphyletic in relation to the Pterodactyloidea, which arose from within the Rhamphorhynchoidea, not from a more distant... " |
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Pterodactylus Pterodactylus is a genus of pterosaurs, whose members are popularly known as pterodactyls. It was the first to be named and identified as a flying reptile... antiquus |
Solnhofen Solnhofen Solnhofen is a municipality in the district of Weißenburg-Gunzenhausen in the region of Franconia in the Land of Bavaria in Germany. It lies within the Altmühl valley.... , Germany |
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Ctenochasma Ctenochasma is a genus of Late Jurassic pterosaur belonging to the suborder pterodactyloidea. Three species are currently recognized: C. roemeri , C. taqueti, and C. elegans... |
Solnhofen Solnhofen Solnhofen is a municipality in the district of Weißenburg-Gunzenhausen in the region of Franconia in the Land of Bavaria in Germany. It lies within the Altmühl valley.... , Germany |
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Comodactylus Comodactylus is a genus of "rhamphorhynchoid" pterosaur from the Kimmeridgian-Tithonian-age Upper Jurassic Morrison Formation of Wyoming, USA, named for a single wing metacarpal.... ostromi |
Morrison Formation Morrison Formation The Morrison Formation is a distinctive sequence of Late Jurassic sedimentary rock that is found in the western United States, which has been the most fertile source of dinosaur fossils in North America. It is composed of mudstone, sandstone, siltstone and limestone and is light grey, greenish... , Wyoming Wyoming Wyoming is a state in the mountain region of the Western United States. The western two thirds of the state is covered mostly with the mountain ranges and rangelands in the foothills of the Eastern Rocky Mountains, while the eastern third of the state is high elevation prairie known as the High... , USA |
Known only from an intact fourth metacarpal, 57.5 millimetres long | ||
Cycnorhamphus Cycnorhamphus is a genus of ctenchasmatoid pterodactyloid pterosaur from the Late Jurassic of France and Germany.In 1855 a fossil in a plate of shale from the Tithonian, found near Nusplingen in Württemberg, holotype GPIT "Orig. Quenstedt 1855, Taf... suevicus |
Solnhofen Solnhofen Solnhofen is a municipality in the district of Weißenburg-Gunzenhausen in the region of Franconia in the Land of Bavaria in Germany. It lies within the Altmühl valley.... , Germany |
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Dermodactylus Dermodactylus was a genus of pterodactyloid pterosaur from the Kimmeridgian-Tithonian-age Upper Jurassic Morrison Formation of Wyoming, USA... montanus |
Morrison Formation Morrison Formation The Morrison Formation is a distinctive sequence of Late Jurassic sedimentary rock that is found in the western United States, which has been the most fertile source of dinosaur fossils in North America. It is composed of mudstone, sandstone, siltstone and limestone and is light grey, greenish... , Wyoming Wyoming Wyoming is a state in the mountain region of the Western United States. The western two thirds of the state is covered mostly with the mountain ranges and rangelands in the foothills of the Eastern Rocky Mountains, while the eastern third of the state is high elevation prairie known as the High... , USA |
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Germanodactylus Germanodactylus is a genus of dsungaripteroid pterodactyloid pterosaur from Late Jurassic-age rocks of Germany, including the Solnhofen limestone. Its specimens were long thought to pertain to Pterodactylus. Its head crest is a distinctive feature.-Description:Germanodactylus is described as... |
Solnhofen Solnhofen Solnhofen is a municipality in the district of Weißenburg-Gunzenhausen in the region of Franconia in the Land of Bavaria in Germany. It lies within the Altmühl valley.... , Germany |
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Gnathosaurus Gnathosaurus is a genus of ctenochasmatid pterosaur known from a single species, G. subulatus, described in 1833. This pterosaur had an estimated wingspan of about 1.7 meters. The slender, 28-cm-long skull had up to 130 needle-like teeth arranged laterally around the spoon-shaped tip... subulatus |
Solnhofen Solnhofen Solnhofen is a municipality in the district of Weißenburg-Gunzenhausen in the region of Franconia in the Land of Bavaria in Germany. It lies within the Altmühl valley.... , Germany |
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Herbstosaurus Herbstosaurus is the name given to a genus of pterosaur that lived during the Jurassic period, in what is now Argentina.In 1969 Argentine paleobotanist Rafael Herbst in the province Neuquén at Picun Leufú dug up a piece of sandstone holding a number of disarticulated bones of a small reptile... pigmaeus |
Neuquén Neuquén Province Neuquén is a province of Argentina, located in the west of the country, at the northern end of Patagonia. It borders Mendoza Province to the north, Rio Negro Province to the southeast, and Chile to the west... , Argentina |
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†Stegosaurs
Stegosaurs of the Tithonian | ||||
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Kimmeridgian Kimmeridgian In the geologic timescale, the Kimmeridgian is an age or stage in the Late or Upper Jurassic epoch or series. It spans the time between 155.7 ± 4 Ma and 150.8 ± 4 Ma . The Kimmeridgian follows the Oxfordian and precedes the Tithonian.... to Early Tithonian |
Morrison Formation Morrison Formation The Morrison Formation is a distinctive sequence of Late Jurassic sedimentary rock that is found in the western United States, which has been the most fertile source of dinosaur fossils in North America. It is composed of mudstone, sandstone, siltstone and limestone and is light grey, greenish... , Colorado, Utah, Wyoming, USA |
Averaging around 9 metres (30 ft) long and 4 metres (14 ft) tall, the quadrupedal Stegosaurus is one of the most easily identifiable dinosaurs, due to the distinctive double row of kite-shaped plates rising vertically along its arched back and the two pairs of long spikes extending horizontally near the end of its tail. | |
†Sauropoda
Sauropoda Sauropoda Sauropoda , or the sauropods , are an infraorder of saurischian dinosaurs. They had long necks, long tails, small heads , and thick, pillar-like legs. They are notable for the enormous sizes attained by some species, and the group includes the largest animals to have ever lived on land... of the Tithonian |
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Diplodocus Diplodocus , or )is a genus of diplodocid sauropod dinosaur whose fossils were first discovered in 1877 by S. W. Williston. The generic name, coined by Othniel Charles Marsh in 1878, is a Neo-Latin term derived from Greek "double" and "beam", in reference to its double-beamed chevron bones... |
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Mamenchisaurus Mamenchisaurus was a plant-eating four-legged dinosaur, known for its remarkably long neck which made up half its total length. It is known from numerous species which ranged in time from 160 to 145 million years ago, from the Oxfordian to Tithonian ages of the late Jurassic Period of... |
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†Thalattosuchians
Thalattosuchians of the Tithonian | ||||
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A large genus of metriorhynchid, that was a high order predator which fed on other marine reptiles
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A relatively small metriorhynchid genus. No known species of Geosaurus attained lengths in excess of 3 meters (10 feet). There were multiple Geosaurus species alive during the Tithonian.
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Metriorhynchus Metriorhynchus is an extinct genus of marine crocodyliform that lived in the oceans during the Middle to Late Jurassic. Metriorhynchus was named by the German palaeontologist Christian von Meyer in 1830. Metriorhynchus was a carnivore that spent much, if not all, its life out at sea...
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An opportunistic carnivore Carnivore A carnivore meaning 'meat eater' is an organism that derives its energy and nutrient requirements from a diet consisting mainly or exclusively of animal tissue, whether through predation or scavenging... that fed on fish Fish Fish are a paraphyletic group of organisms that consist of all gill-bearing aquatic vertebrate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups... , belemnites and other marine animals and possible carrion. Metriorhynchus grew to an average adult length of 3 meters (9.6 feet). |
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†Belemnites
Belemnites of the Tithonian | ||||
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Literature
; (2004): A Geologic Time Scale 2004, Cambridge University PressCambridge University Press
Cambridge University Press is the publishing business of the University of Cambridge. Granted letters patent by Henry VIII in 1534, it is the world's oldest publishing house, and the second largest university press in the world...
.; 1865: Die Tithonische Etage, Zeitschrift der Deutschen Geologischen Gesellschaft, 1865: pp 535-558.
External links
- GeoWhen Database - Tithonian
- Jurassic-Cretaceous timescale, at the website of the subcommission for stratigraphic information of the ICS
- Stratigraphic chart of the Upper Jurassic, at the website of Norges Network of offshore records of geology and stratigraphy