Lameta Formation
Encyclopedia
The Lameta Formation is a sedimentary rock formation found in Madhya Pradesh
, Gujarat, and Maharashtra
, India
. It is of Maastrichtian
age (Upper Cretaceous), and is notable for its dinosaur
fossil
s. Many dubious
names have been created for isolated bones, but several genera
of dinosaurs from these rocks are well-supported, including the titanosaur
sauropod Isisaurus
and the abelisaur
s Indosaurus
, Indosuchus
, Laevisuchus
, and Rajasaurus
.
Madhya Pradesh
Madhya Pradesh , often called the Heart of India, is a state in central India. Its capital is Bhopal and Indore is the largest city....
, Gujarat, and Maharashtra
Maharashtra
Maharashtra is a state located in India. It is the second most populous after Uttar Pradesh and third largest state by area in India...
, India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...
. It is of Maastrichtian
Maastrichtian
The Maastrichtian is, in the ICS' geologic timescale, the latest age or upper stage of the Late Cretaceous epoch or Upper Cretaceous series, the Cretaceous period or system, and of the Mesozoic era or erathem. It spanned from 70.6 ± 0.6 Ma to 65.5 ± 0.3 Ma...
age (Upper Cretaceous), and is notable for its dinosaur
Dinosaur
Dinosaurs are a diverse group of animals of the clade and superorder Dinosauria. They were the dominant terrestrial vertebrates for over 160 million years, from the late Triassic period until the end of the Cretaceous , when the Cretaceous–Paleogene extinction event led to the extinction of...
fossil
Fossil
Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...
s. Many dubious
Nomen dubium
In zoological nomenclature, a nomen dubium is a scientific name that is of unknown or doubtful application...
names have been created for isolated bones, but several genera
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
of dinosaurs from these rocks are well-supported, including the titanosaur
Titanosaur
Titanosaurs were a diverse group of sauropod dinosaurs, which included Saltasaurus and Isisaurus. It includes some of the heaviest creatures ever to walk the earth, such as Argentinosaurus and Paralititan — which some believe have weighed up to 100 tonnes...
sauropod Isisaurus
Isisaurus
Isisaurus is a genus of dinosaur from the Late Cretaceous Period. Isisaurus was a sauropod , which lived in what is now India....
and the abelisaur
Abelisaur
Abelisaurs were a group of ceratosaurian dinosaurs which lived in the Southern hemisphere during the Cretaceous period. Some well-known dinosaurs of this group include Abelisaurus, Carnotaurus, and Majungasaurus. They are known for their small arms...
s Indosaurus
Indosaurus
Indosaurus is a genus of theropod dinosaur once living in what is now India. It lived approximately 69 million years ago, in the Maastrichtian division of the Late Cretaceous...
, Indosuchus
Indosuchus
Indosuchus is a genus of abelisaurid dinosaur from the Late Cretaceous Period , a theropod related to Abelisaurus. Like most theropods, Indosuchus was a bipedal carnivore...
, Laevisuchus
Laevisuchus
Laevisuchus is a genus of abelisauroid theropod dinosaur from the Late Cretaceous.Its remains were discovered by Charles Alfred Matley near Jabalpur in Maastrichtian deposits in the Lameta Formation in India, and named and described by paleontologists Friedrich von Huene and Matley in 1933. The...
, and Rajasaurus
Rajasaurus
Rajasaurus is a genus of carnivorous abelisaurian theropod dinosaur with an unusual head crest. Between 1982 and 1984, its fossilized bones were discovered by Suresh Srivastava of the Geological Survey of India...
.
Dinosaurs
Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
---|---|---|---|---|---|---|
Indosaurus Indosaurus Indosaurus is a genus of theropod dinosaur once living in what is now India. It lived approximately 69 million years ago, in the Maastrichtian division of the Late Cretaceous... |
I. matleyi |
Partial skeleton, including a partial skull. |
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Brachypodosaurus Brachypodosaurus Brachypodosaurus was a genus of thyreophoran dinosaur from the Late Cretaceous Lameta formation in India... |
B. gravis |
"Humerus." |
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Coeluroides Coeluroides Coeluroides is a nomen dubium. A small, little-known dinosaur, specifically a theropod, Coeluroides lived during the Late Cretaceous Period in what is now India. It is known from scattered tail vertebrae discovered in the Lameta Formation... |
C. largus |
"Isolated vertebrae." |
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Dryptosauroides Dryptosauroides Dryptosauroides is the name given to a genus of dinosaur from the Late Cretaceous. It was a large theropod possibly belonging to the Abelisauridae.... |
D. grandis |
"Vertebrae." |
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Indosuchus Indosuchus Indosuchus is a genus of abelisaurid dinosaur from the Late Cretaceous Period , a theropod related to Abelisaurus. Like most theropods, Indosuchus was a bipedal carnivore... |
I. raptorius |
Cranial remains, including two braincases, as well as a nearly complete skeleton. |
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Isisaurus Isisaurus Isisaurus is a genus of dinosaur from the Late Cretaceous Period. Isisaurus was a sauropod , which lived in what is now India.... |
I. colberti |
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Jainosaurus Jainosaurus Jainosaurus is a large titanosaurian dinosaur of India and wider Asia, which lived in the Maastrichtian .... |
J. septentrionalis |
"Basicranium and partial postcranial skeleton." |
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Jubbulpuria Jubbulpuria Jubbulpuria is the name given to a dubious genus of small dinosaur from the Late Cretaceous of India.The genus was in 1932 named by Friedrich von Huene. The generic name refers to Jabalpur in the vicinity of which the fossils were found. The type species, Jubbulpuria tenuis, was described by von... |
J. tenuis |
"Vertebrae." |
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Lametasaurus Lametasaurus Lametasaurus named for the Lameta Formation, Jabalpur, India, is the generic name given to a possible dubious dinosaur species. Originally it indicated a possible chimera composed of several different animals.... |
L. indicus |
"Sacrum, ilia, tibia." "Sacrum, ilia, tibia, spines, armor." |
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Laevisuchus Laevisuchus Laevisuchus is a genus of abelisauroid theropod dinosaur from the Late Cretaceous.Its remains were discovered by Charles Alfred Matley near Jabalpur in Maastrichtian deposits in the Lameta Formation in India, and named and described by paleontologists Friedrich von Huene and Matley in 1933. The... |
L. indicus |
Only vertebrae. |
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Ornithomimoides Ornithomimoides Ornithomimoides is a dubious genus of small theropod dinosaur, from the Late Cretaceous period of India. Two species have been identified, though they are known only from isolated vertebrae. O. barasimlensis is known from five dorsal vertebrae, and O. mobilis from four smaller vertebrae, found at... |
O. barasimlensis |
"Vertebrae." |
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O. mobilis |
"Vertebrae." |
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Orthogoniosaurus Orthogoniosaurus Orthogoniosaurus was a genus of theropod dinosaur from the late Maastrichtian-age Upper Cretaceous Lameta Formation of Jabalpur, India... |
O. matleyi |
"Tooth." |
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Rajasaurus Rajasaurus Rajasaurus is a genus of carnivorous abelisaurian theropod dinosaur with an unusual head crest. Between 1982 and 1984, its fossilized bones were discovered by Suresh Srivastava of the Geological Survey of India... |
R. narmadensis |
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Rahiolisaurus Rahiolisaurus Rahiolisaurus is a genus of abelisaurid theropod dinosaur which existed in India during the Late Cretaceous period. It was described in 2010, based on fossils recovered from the Lameta Formation in the Indian state of Gujarat... |
R. gujaratensis |
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Titanosaurus Titanosaurus Titanosaurus is a genus of sauropod dinosaur, first described by Lydekker in 1877. It is known from the Maastrichtian Lameta Formation of India... |
T. blanfordi |
"Caudal vertebrae." |
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T. rahioliensis |
"Teeth." |
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