Also known as Post Quarry, Dockum Group, ETE Locality 1583, MOTT VPL 3624
Where: Garza County, Texas (33.5° N, 101.3° W: paleocoordinates 8.2° N, 41.5° W)
• coordinate stated in text
• small collection-level geographic resolution
When: Cooper Canyon Formation (Dockum Group), Norian (228.0 - 208.5 Ma)
• About 50 metres above the contact between the top of the Trujillo Sandstone and the base of the Cooper Canyon Formation and can be correlated to lithologic unit 9 of the nearby type section of the Cooper Canyon Formation. Upper part of the "lower unit" of the formation.
• bed-level stratigraphic resolution
Environment/lithology: "floodplain"; red mudstone and sandstone
Size classes: macrofossils, mesofossils
Collected by S. Chatterjee in 1977–
Collection methods: quarrying, mechanical,
• The quarry is 90 x 90 m in size and the bone bed is 30 cm thick. "...a diverse mixture of massive and delicate elements...found entirely in the mudstone, associated, but disarticulated." ETE Size: .; ETE reference list: 701, 698, 696, 692, 690, 686, 685, 731, 684, 729, 730, 872, 873, 874, 875, 869, 870, 871, 868, 867, 866, 865, 864, 863, 862, 861, 860, 852, 734, 775, 856, 859, ; ETE museum list:
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Primary reference: Anonymous. 1983. Dinosaur ancestors unearthed in Texas. Science News 124(23):357 [M. Carrano/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 13273: authorized by John Alroy, entered by Robin Whatley on 12.02.2002, edited by Matthew Carrano, Richard Butler and Bethany Allen
Creative Commons license: CC BY (attribution)
Taxonomic list
Amphibia | |
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Rileymillerus cosgriffi n. gen. n. sp.1 Bolt and Chatterjee 2000 tetrapod TTU P 9168 (holotype), nearly complete skull
Rileymillerus cosgriffi9 Bolt and Chatterjee 2000 tetrapod TTU P-9170, vertebrae possibly referable to Rileymillerus
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Reptilia | |
cf. Trilophosaurus sp.8, Trilophosaurus sp.8, "? Malerisaurus langstoni" = Trilophosaurus buettneri9, "Trilophosaurus dornorum" = Trilophosaurus jacobsi10, Archosauriformes indet.9
"? Malerisaurus langstoni" = Trilophosaurus buettneri9 Case 1928 archosauromorph TTU P-11338, cervical vertebra
Archosauriformes indet.9 Gauthier 1986 archosauromorph TTU P-10110-10198, "Procoelosaurus brevicollis"; TTU P10085-10095, 9489, 9490, "Pteromimus longicollis"; 57 additional specimens (mostly vertebrae)
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Herrerasauridae indet.9 Benedetto 1973 herrerasaurid TTU P-10082, partial pelvis, similar to Staurikosaurus
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Protoavis texensis n. gen. n. sp.5 Chatterjee 1991 theropod TTU P 9200 (holotype), partial skull and skeleton; TTU P 9201, partial skull/skeleton; TTU P 9350-9380, isolated elements. May represent a "fauna" of multiple taxa. However, according to Nesbitt et al. (2007) theropod elements include the astragalus/calcaneum (TTU P 9201), femur (TTU P 9200) and possibly the braincase (TTU P 9200)
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Dromomeron gregorii14 Nesbitt et al. 2009 ornithodiran TTU-P18331, TTU-P20046, fragments of left femur; TTU-P11282, complete left femur
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"Parasuchia indet." = Phytosauria8
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"Shuvosaurus inexpectatus n. gen. n. sp." = Shuvosaurus inexpectatus6, "Chatterjeea elegans n. gen. n. sp." = Shuvosaurus inexpectatus7
"Shuvosaurus inexpectatus n. gen. n. sp." = Shuvosaurus inexpectatus6 Chatterjee 1993 archosaur TTU P-9280 (holotype), skull; TTU P-9282 (paratype), skull; TTU P-9281 (paratype), cranial elements; TTU P-9021 (partim), partial lower jaw originally assigned to Technosaurus; TTU P-9235, vertebrae; TTU P-9003-9011, specimens originally assigned to Postosuchus kirkpatricki; TTU P-11045, scapula; TTU P-10969, quadrate
"Chatterjeea elegans n. gen. n. sp." = Shuvosaurus inexpectatus7 Chatterjee 1993 archosaur TTU P-9001 (holotype), postcranial skeleton
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Sphenosuchidae indet.8 Huene 1922 crocodilian TTU P-9466, 11277, 11443, 11444, premaxilla and femora
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Postosuchus kirkpatricki n. gen. n. sp.4
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Stagonolepididae indet.8, Desmatosuchus smalli n. sp.13, Calyptosuchus wellesi9, Paratypothorax sp.16, Typothorax sp.8
Desmatosuchus smalli n. sp.13 Parker 2005 aetosaur TTU P 9024 (holotype), 9023, 9025, 9170, 9207 (paratypes), 9204, 9225, 9226, 9229, 9416 (in part), 9419, 9420 (in part), 10083; 12 DMNH specimens
Calyptosuchus wellesi9 Long and Ballew 1985 aetosaur TTU-P09420 (in part) left and right paramedian osteoderms
Paratypothorax sp.16 Long and Ballew 1985 aetosaur TTU P-9169, 9214, 9215, 9416 (in part), 11599, 12540; DMNH 9894, 9896, 9900, 9914, 9919, 9921, 9922, 9927, 9928, 9931, 9934, 9939, 9942, 9986
Typothorax sp.8 Cope 1875 aetosaur TTU P-9214, partial skull & skeleton; previously listed as TTU P-9208
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? Drepanosauridae indet.12 Berman and Reisz 1992 diapsid TTU P-9201, Cervical vertebrae assigned to "Protoavis texensis"
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Osteichthyes | |
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Pachygenelus milleri n. sp.2
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Bivalvia | |
"Unionoida indet." = Unionida4
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