Acanthomorpha
Encyclopedia
Acanthomorpha is an order of prehistoric fish
that was described by Rosen
in 1973. Fossil
s range from the Late Cretaceous
to the Early Oligocene (99.6mya)-28.4mya). Older fossils (as recent as 70.6mya) occur in Alberta
and Saskatchewan
, Canada
, and the late Palaeorhynchus zitteli occurs in Romania
.
Late Cretaceous
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...
that was described by Rosen
Rosen
-People:* Al Rosen , American All Star and MVP baseball player* Al Rosen , American actor in Cheers* Albert Rosen , conductor* Andrea Rosen , American comedian and actress...
in 1973. Fossil
Fossil
Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...
s range from the Late Cretaceous
Late Cretaceous
The Late Cretaceous is the younger of two epochs into which the Cretaceous period is divided in the geologic timescale. Rock strata from this epoch form the Upper Cretaceous series...
to the Early Oligocene (99.6mya)-28.4mya). Older fossils (as recent as 70.6mya) occur in Alberta
Alberta
Alberta is a province of Canada. It had an estimated population of 3.7 million in 2010 making it the most populous of Canada's three prairie provinces...
and Saskatchewan
Saskatchewan
Saskatchewan is a prairie province in Canada, which has an area of . Saskatchewan is bordered on the west by Alberta, on the north by the Northwest Territories, on the east by Manitoba, and on the south by the U.S. states of Montana and North Dakota....
, Canada
Canada
Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...
, and the late Palaeorhynchus zitteli occurs in Romania
Romania
Romania is a country located at the crossroads of Central and Southeastern Europe, on the Lower Danube, within and outside the Carpathian arch, bordering on the Black Sea...
.
Late Cretaceous
Species
Acanthomorph genera include:- AsineopsAsineopsAsineops is a genus of prehistoric fish that was described by Edward Drinker Cope in 1870.-References:*, Paleobiology Database...
- CongorhynchusCongorhynchusCongorhynchus is a genus of prehistoric fish that was described by E. Darteville and E. Casier in 1949.Fossils belonging to Congorhynchus date back to the Maastrichtian stage of the Late Cretaceous as well as the Eocene. This means that this genus survived the Cretaceous–Tertiary extinction event...
- BlochiusBlochiusBlochius is a genus of prehistoric fish that was described by Volta in 1800.-References:*, Paleobiology Database...
- EnniskillenusEnniskillenusEnniskillenus is a genus of prehistoric fish that was described by Casier in 1966.-References:* , Paleobiology Database...
- HomorhynchusHomorhynchusHomorhynchus is a genus of prehistoric fish that was described by Edouard Van Beneden in 1873.-References:*, Paleobiology Database...
- OmosomopsisOmosomopsisOmosomopsis is a genus of prehistoric fish that was described by Gaudant in 1978.-References:*...
- PalaeorhynchusPalaeorhynchusPalaeorhynchus is a genus of prehistoric fish from Romania that was described by Wagner in 1860. One fossil found is dated .-References:*, Paleobiology Database...
- PharmacichthysPharmacichthysPharmacichthys is a genus of prehistoric fish that was described by Woodward in 1942.-References:http://paleodb.org/cgi-bin/bridge.pl?action=checkTaxonInfo&taxon_no=35646&is_real_user=1...
- PseudotetrapterusPseudotetrapterusPseudotetrapterus is a genus of prehistoric fish.-References:*, Paleobiology Database...