Movatterモバイル変換

Euclastes

From Wikipedia, the free encyclopedia

Extinct genus of turtles

Euclastes Temporal range:Maastrichtian-Late Eocene ~70–34 Ma PreꞒ Ꞓ O S D C P T J K Pg N

Euclastes sp. skeleton
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Testudines
Suborder:	Cryptodira
Clade:	Pancheloniidae
Genus:	†Euclastes Cope,1867
Species^[1]
†E. acutirostrisJalilet al., 2009 †E. platyopsCope, 1867 †E. wielandi(Hay, 1908)
Synonyms
Glossochelys?Seeley 1871 RhetechelysHay, 1908 OsteopygoidesKarlet al., 1998 CatapleuraCope, 1870^[2]

Euclastes is anextinct genus ofsea turtles that survived theCretaceous–Paleogene mass extinction. The genus was first named byEdward Drinker Cope in 1867, and contains three species.E. hutchisoni, was named in 2003 but has since been reassigned to the genusPacifichelys,^[3] whileE. coahuilaensis named in 2009 was reassigned asMexichelys coahuilaensis in 2010.^[4]^[5]

Description

[edit]

Unlike the sea turtlesToxochelys andEochelone,Euclastes has asecondary palate. However, the secondary palate ofEuclastes is not as extensive as it is inCtenochelys andAngolachelys.^[6] The genus can be distinguished by later sea turtles based on its broad, low skull; broad, flat palate; wide, flatdentary bone with an elongatedsymphysis; and lowtomial ridge on the beak. The widened palate and dentaries giveEochelone wide, flat jaws suitable for crushing hard-shelled organisms.^[3]

Classification

[edit]

Species

[edit]

†E. acutirostrisJalilet al., 2009
†E. platyopsCope, 1867
†E. wielandi(Hay, 1908)

Phylogeny

[edit]

Cladogram based on Lynch and Parham (2003)^[3] and Parham and Pyenson (2010):^[7]

Cheloniidae sensu lato

Euclastes

	Erquelinnesla

	Pacifichelys

	Puppigerus

	Cheloniidaesensu stricto

Distribution

[edit]

Fossils ofEuclastes have been found in:^[8]

Maastrichtian

Bentiaba, Angola^[9]
Quiriquina Formation, Chile
Hornerstown andNavesink Formations, New Jersey

Paleocene

Jagüel andRoca Formations, Argentina
Aquia andBrightseat Formations, Maryland
Sidi Chennane andCouche 2 Formation, Morocco

Eocene

Parkers Ferry Formation, South Carolina

References

[edit]

^Parham, James F.; Pyenson, Nicholas D. (March 2010)."New sea turtle from the Miocene of Peru and the iterative evolution of feeding ecomorphologies since the Cretaceous".Journal of Paleontology.84 (2):231–247.Bibcode:2010JPal...84..231P.doi:10.1666/09-077R.1.ISSN 0022-3360.S2CID 62811400.
^Ullmann, S. G.; Carr, E. (2021). "Catapleura Cope, 1870 isEuclastes Cope, 1867 (Testudines: Pan-Cheloniidae): synonymy revealed by a new specimen from New Jersey".Journal of Systematic Palaeontology.19 (7):491–517.Bibcode:2021JSPal..19..491U.doi:10.1080/14772019.2021.1928306.S2CID 236504236.
^^a ^b ^cLynch, S.C.; Parham, J.F. (2003)."The first report of hard-shelled sea turtles (Cheloniidaesensu lato) from the Miocene of California, including a new species (Euclastes hutchisoni) with unusually plesiomorphic characters"(PDF).PaleoBios.23 (3):21–35.^{[permanent dead link‍]}
^Euclastes coahuilaensis from the Paleobiology Database
^Exibidos fósseis de tartarugas com 72 mi de anos
^Mateus, Octávio; Jacobs, Louis; Polcyn, Michael; Schulp, Anne S.; Vineyard, Diana; Buta Neto, André; Telles Antunes, Miguel (December 2009)."The Oldest African Eucryptodiran Turtle from the Cretaceous of Angola".Acta Palaeontologica Polonica.54 (4):581–588.doi:10.4202/app.2008.0063.
^James F. Parham;Nicholas D. Pyenson (2010). "New Sea Turtle from the Miocene of Peru and the Iterative Evolution of Feeding Ecomorphologies since the Cretaceous".Journal of Paleontology.84 (2):231–247.Bibcode:2010JPal...84..231P.doi:10.1666/09-077R.1.S2CID 62811400.
^Euclastes atFossilworks.org
^Mateus, O., M. J. Polcyn, L. L. Jacobs, R. Arujo, A. S. Schulp, J. Marinheiro, B. Pereira and D. Vineyard. 2012. Cretaceous amniotes from Angola: dinosaurs, pterosaurs, mosasaurs, plesiosaurs, turtles. Actas de V Jornadas Internacionales sobre Paleontologia de Dinosaurios y su Entorno, Salas de los Infantes, Burgos 71-105

External links

[edit]

www.scistp.org

Testudines

Kingdom:Animalia
Phylum:Chordata
Class:Reptilia
Clade:Diapsida
Order:Testudines

Genus

Chelonioidea
(Sea turtles)

Cheloniidae	†Allopleuron Caretta †Carolinochelys Chelonia †Eochelone Eretmochelys †Gigantatypus †Glarichelys †Itilochelys Lepidochelys †Mexichelys †Miocaretta Natator †Pacifichelys †Syllomus †Tasbacka
Dermochelyidae	†Arabemys †Corsochelys †Cosmochelys Dermochelys †Eosphargis †Mesodermochelys †Psephophorus
	†Euclastes †Peritresius †Procolpochelys †Protosphargis †Puppigerus

Kinosternoidea

Dermatemydidae	Dermatemys
Kinosternidae	Claudius †Hoplochelys Kinosternon Staurotypus Sternotherus

Testudinoidea

Emydidae	†Acherontemys Chrysemys Clemmys Deirochelys Emys Actinemys Emydoidea Glyptemys Graptemys Malaclemys Pseudemys Terrapene Trachemys †Wilburemys
Geoemydidae	Batagur †Banhxeochelys Cuora Cyclemys Geoclemys Geoemyda Hardella Heosemys Leucocephalon Malayemys Mauremys Melanochelys Morenia Notochelys Orlitia Pangshura Rhinoclemmys Sacalia Siebenrockiella Vijayachelys
Platysternidae	Platysternon
Testudinidae	Aldabrachelys Astrochelys Centrochelys Chelonoidis Chersina Cylindraspis †Cymatholcus †Floridemys Geochelone Gopherus †Hadrianus †Hesperotestudo Homopus Indotestudo Kinixys Malacochersus Manouria †Megalochelys †Oligopherus Psammobates Pyxis †Solitudo Stigmochelys †Stylemys Testudo

Trionychia

Carettochelyidae	†Allaeochelys †Anosteira Carettochelys
Trionychidae	Amyda Apalone †Axestemys Chitra Cyclanorbis Cycloderma †Drazinderetes Dogania †Gilmoremys †Hutchemys †Khunnuchelys Lissemys Nilssonia Palea †Palaeoamyda Pelochelys Pelodiscus Rafetus Trionyx
	†Basilochelys †Sinaspideretes

Chelydridae	Chelydra †Chelydrops †Chelydropsis †Emarginachelys †Macrocephalochelys Macrochelys †Planiplastron †Protochelydra
†Nanhsiungchelyidae	†Anomalochelys †Basilemys †Jiangxichelys
†Protostegidae	†Alienochelys †Archelon †Atlantochelys †Bouliachelys †Calcarichelys †Cratochelone †Desmatochelys †Iserosaurus †Notochelone †Ocepechelon †Pneumatoarthrus †Protostega †Rhinochelys †Santanachelys †Terlinguachelys
	†Adocus †Argillochelys †Bashuchelys †Ctenochelys †Prionochelys †Toxochelys

Pleurodira

†Araripemydidae	†Araripemys
†Bothremydidae	†Araiochelys †Arenila †Azabbaremys †Bothremys †Cearachelys †Chedighaii †Chupacabrachelys †Eotaphrosphys †Foxemys †Galianemys †Ilatardia †Inaechelys †Itapecuruemys †Jainemys †Kinkonychelys †Kurmademys †Labrostochelys †Nigeremys †Phosphatochelys †Polysternon †Puentemys †Rosasia †Rhothonemys †Sankuchemys †Taphrosphys †Ummulisani †Zolhafah
Chelidae	Acanthochelys Chelodina Chelus Elseya Elusor Emydura Hydromedusa †Lomalatachelys Mesoclemmys Myuchelys Phrynops Platemys †Prochelidella Pseudemydura Rheodytes Rhinemys †Yaminuechelys
Pelomedusidae	Pelomedusa Pelusios
Podocnemididae	†Albertwoodemys †Bauruemys †Brontochelys †Caninemys †Carbonemys †Cerrejonemys †Cordichelys Erymnochelys †Lapparentemys †Latentemys Peltocephalus Podocnemis †Stupendemys
†Sahonachelyidae	†Sahonachelys †Sokatra

	†Caribemys †Caririemys †Tacuarembemys

Phylogenetic arrangement of turtles based onTurtles of the World 2017 Update: Annotated Checklist and Atlas of Taxonomy, Synonymy, Distribution, and Conservation Status. † = extinct.

See alsoList of Testudines families

Taxon identifiers
Euclastes	Wikidata:Q5406057 GBIF:4818799 IRMNG:1407607 Open Tree of Life:4132315 Paleobiology Database:67331

Retrieved from "https://en.wikipedia.org/w/index.php?title=Euclastes&oldid=1274367971"

Categories:

Hidden categories:

[8]ページ先頭