Cooper Canyon Formation: Difference between revisions - Wikipedia


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====Pseudosuchians====

Indeterminate [[paracrocodylomorph]] and [[stagonolepidid]] material is known from the Boren Quarry (MOTT 3869).<ref name="Argo"/>

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{{strikethrough|''[[Calyptosuchus]]''}}

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{{strikethrough|''C. wellesi''}}<ref name="Argo"/>

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*Lower (upperlower)

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*PostBoren Quarry (MOTT 36243869)<ref name="Argo"/>

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Osteoderms

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A [[desmatosuchia]]n [[aetosaur]]. Material from Post Quarry named as the new genus and species ''Scutarx deltatylus'' in 2016.<ref name=":3">{{Cite journal |last=Parker |first=William |date=2016 |title=Revised phylogenetic analysis of the Aetosauria (Archosauria: Pseudosuchia); assessing the effects of incongruent morphological character sets |journal=PeerJ |volume=4 |pages=e1583 |doi=10.7717/peerj.1583 |pmid=26819845 |pmc=4727975}}</ref>

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[[File:Poposaurus_gracilis_(1).jpg|thumb|center|200px|''[[Poposaurus gracilis]]'']]

[[File:Postosuchus kirkpatricki.jpg|thumb|center|200px|''[[Postosuchus kirkpatricki]]'']]

[[File:Scutarx-deltatylus_1.jpg|thumb|center|200px|''[[Scutarx deltatylus]]'']]

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Indeterminate

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*Lower (upper, lower)

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*Post Quarry (MOTT 3624)<ref name="Martz13"/>

*Boren Quarry (MOTT 3869)<ref name="Argo"/>

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Right femurFemora<ref name="Martz13"/>

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A small crocodylomorph comparable to ''[[Hesperosuchus]]''.<ref name="Martz13"/>

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Several skulls and partial skeletons, osteoderms<ref name="Dsmalli"/>

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An armoured [[aetosaur]] with large shoulder spines. Type locality of ''D. smalli'', species also known from the [[List of archosaurs of the Chinle Formation#Aetosaurs|Chinle Formation]]. Some skeletal postcranial material may belong to ''Paratypothorax''.<ref name=":3"/>

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A [[Paratypothoracini|paratypothoracin]] aetosaur. Potentially belongs to a distinct species from ''P. andressorum'', as for other North American ''Paratypothorax''.<ref name=":3"/>

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''[[Poposaurus]]''

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''P. gracilis''<ref name="Argo"/>

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*Lower (lower)

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*Boren Quarry (MOTT 3869)<ref name="Argo"/>

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Femur, cervical vertebra<ref name="Mueller16"/>

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A bipedal predatory paracrocodylomorph.

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Two skeletons and isolated remains<ref name="Martz13"/>

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A large predatory [[rauisuchid]], type specimen from the Post Quarry. Most rauisuchid material from elsewhere in the southwestern US has also been assigned to ''Postosuchus kirkpatricki'' but it is unclear how much of it definitively belongs to ''Postosuchus''.<ref>{{cite journal |author1=Emily J. Lessner |author2=Michelle R. Stocker |author3=Nathan D. Smith |author4=Alan H. Turner |author5=Randall B. Irmis |author6=Sterling J. Nesbitt |year=2016 |title=A new rauisuchid (Archosauria, Pseudosuchia) from the Upper Triassic (Norian) of New Mexico increases the diversity and temporal range of the clade |journal=PeerJ |volume=4 |pages=e2336 |doi=10.7717/peerj.2336 |pmid=27651983 |pmc=5018681}}</ref> A fifth metatarsal from the Boren Quarry (MOTT 3869) may belong to ''Postosuchus''.<ref name="Mueller16">{{cite thesis |last1=Mueller |first1=B. D. |year=2016 |title=Triassic Tetrapod Paleontology and Taphonomy of the Boren Quarry, Dockum Group, Garza County, Texas |type=Unpublished PhD thesis |publisher=Texas Tech University |url=https://ttu-ir.tdl.org/handle/2346/73724 |access-date=5 November 2023}}</ref>

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Osteoderms<ref name=":4"/>

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A [[desmatosuchine]] [[aetosaur]] based on material formerly assigned to ''[[Calyptosuchus wellesi]]''. Known more abundantly in the [[List of archosaurs of the Chinle Formation#Aetosaurs|Chinle Formation]].<ref name=":3"/>

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*Upper?

*Lower (upper, lower)

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*Patricia Site (MOTT 3870)?<ref name=":0"/>

*Post Quarry (MOTT 3624)<ref name="Martz13"/>

*Boren Quarry (MOTT 3869)<ref name="Argo"/>

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Skulls and skeleton<ref name="Martz13"/>

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''V. campi''<ref name="Sari18"/>

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*Lower (upper, lower)

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*Post Quarry (MOTT 3624)<ref name="Sari18"/>

*Boren Quarry (MOTT 3869)<ref name="Argo"/>

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Postcervical vertebrae, osteoderms (MOTT 3624)<ref name="Sari18"/>

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An unusual armoured semi-aquatic archosauriform. Additional limb bones from the Post and Kirkpatrick quarries may belong to ''Vancleavea'' or a related taxon.

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===Other amniotes===

Numerous fragmentary limb bones of various reptiles have been collected that cannot be reliably diagnosed to specific clades, though some show similarities to [[drepanosauromorphs]]. Indeterminate [[procolophonid]] material is known from the Boren Quarry (MOTT 3869).<Ref name="Argo"/>

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Indeterminate

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*Lower (uppermiddle)

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*Post Quarry (MOTT 3624)3610<ref name="Martz13Argo"/>

*Meyer’sMcCarty HillRanch (MOTT 38810690)<ref name="Martz08Argo"/>

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Cranial fragments, sternum.<ref name="Argo"/>

A humerus (MOTT 3881) and a femur (MOTT 3624).<ref name="LC05"/><ref name="Martz13"/>▼

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Isolated indeterminate dicynodont material, seemingly not referable to ''Placerias''.<ref name="LC05Argo"/>

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Indeterminate

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*Lower (upper, lower)

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*Post Quarry (MOTT 3624)<ref name="Martz13"/>

*Boren Quarry (MOTT 3869)<ref name="Argo"/>

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Two scapulacoracoids (MOTT 3624)<ref name="Martz13"/>

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An unusual, possibly arboreal diapsid reptile.

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Probable eucynodonts with teeth lacking a cingulum and possessing a large main cusp and 2–3 smaller posterior cusps.<ref name="Martz13"/>

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|[[Kannemeyeriiformes]] indet.<ref name="Argo"/>

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Indeterminate

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*Lower (upper)

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*Post Quarry (MOTT 3624)<ref name="Argo"/>

*Meyer’s Hill (MOTT 3881)<ref name="Argo"/>

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▲A humerus (MOTT 3881) and a femur (MOTT 3624).<ref name="LC05"/><ref name="Martz13"/>

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Isolated indeterminate kannemeyeriiforms, potentially distinct from ''Argodicynodon''.<ref name="Argo"/>

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<ref name=Lehman_1992>{{cite journal

|title =The Cooper Canyon Formation (Late Triassic) of western Texas

|authorauthor1 =Lehman T., Chatterjee S., Schnable J.

|author2 =Chatterjee S.

|author3= Schnable J.

|date =1992

|journal=The Texas Journal of Science