Glyptops
{{Short description|Extinct genus of turtles}}
{{Automatic taxobox
| fossil_range = {{fossilrange|Tithonian}}
| image = Glyptps and Adocus.jpg
| image_caption = Skull and shell of Glyptops ornatus, and shell of Adocus punctatus
| taxon = Glyptops
| authority = Marsh, 1890
| type_species =
| type_species_authority = Cope, 1877
| subdivision_ranks = Species
| subdivision = *Glyptops ornatus Marsh, 1890
| synonyms = *Glyptops utahensis Gaffney 1979
- Glyptops plicatulus Cope, 1877
}}
Glyptops is an extinct genus of pleurosternid freshwater turtle known from the Late Jurassic of North America.
Taxonomy
The type species, Glyptops plicatulus, was first described as Compsemys plicatulus by Edward Drinker Cope on the basis of AMNH 6099, a partial shell from the Late Jurassic (Tithonian) aged Morrison Formation of Colorado.E. D. Cope. 1877. On reptilian remains from the Dakota Beds of Colorado. Proceedings of the American Philosophical Society 17(100):193-196 In 1890, a partial skull, YPM 1784 (described from Como Bluff, Wyoming), was named Glyptops ornatus by Othniel Charles Marsh.O. C. Marsh. 1890. Notice of some extinct Testudinata. The American Journal of Science and Arts, series 3 40:177-179 Later, Oliver Perry Hay recognized Compsemys plicatulus and Glyptops ornatus as being from the same species, hence the new combination G. plicatulus.O. P. Hay. 1908. The fossil turtles of North America. Carnegie Institution of Washington Publication 75:1-568. Another Morrison species of Glyptops, G. utahensis, was described from a complete shell (CM 3412) found at Dinosaur National Monument in Utah.C. W. Gilmore. 1916. Description of a new species of tortoise from the Jurassic of Utah. Annals of Carnegie Museum 10(1-2):7-12. Glyptops later became a wastebasket taxon to refer to isolated shell fragments with a finely sculpted surface texture. The type of Glyptops plicatulus was later judged to be a nomen dubium, due to it lacking any diagnostic characters, and Glyptops ornatus was made to be the only valid species.{{Cite journal|last1=Joyce|first1=Walter G.|last2=Anquetin|first2=Jérémy|date=October 2019|title=A Review of the Fossil Record of Nonbaenid Turtles of the Clade Paracryptodira|url=https://bioone.org/journals/Bulletin-of-the-Peabody-Museum-of-Natural-History/volume-60/issue-2/014.060.0204/A-Review-of-the-Fossil-Record-of-Nonbaenid-Turtles-of/10.3374/014.060.0204.full|journal=Bulletin of the Peabody Museum of Natural History|volume=60|issue=2|pages=129–155|doi=10.3374/014.060.0204|bibcode=2019BPMNH..60..129J |s2cid=203780510|issn=0079-032X}}
The species Glytops caelatus Hay, 1908 was described from the middle Cretaceous (late Aptian-early Albian) Arundel Formation of Maryland. However, it was later dismissed as a nomen dubium based on non-diagnostic remains.E. S. Gaffney. 1979. The Jurassic turtles of North America. Bulletin of the American Museum of Natural History 162(3):95-135
Description
The skull of Glyptops ornatus exhibit adaptions likely for suction feeding.
References
{{Reflist}}
- [https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=37625 Glyptops] at The Paleobiology Database
{{Pantestudines}}
{{Taxonbar|from=Q5573640}}
Category:Prehistoric turtle genera
Category:Late Jurassic turtles
Category:Late Jurassic reptiles of North America
Category:Fossil taxa described in 1890
Category:Taxa named by Othniel Charles Marsh
{{paleo-turtle-stub}}