Also known as Lowerverse local fauna microfossil site; Lowerverse locality
Where: Brewster County, Texas (29.3° N, 103.6° W: paleocoordinates 35.9° N, 77.1° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Lower Shale Member (Aguja Formation), Early/Lower Campanian (83.5 - 70.6 Ma)
• middle part of the lower shale member; ammonites in the uppermost part of the underlying upper Pen Formation pertain to the Scaphites hippocrepis III zone (c. 82 Ma) while those in the overlying Rattlesnake Mountain sandstone member of the Aguja pertain to the Baculites maclearni zone (c. 80 Ma)
• bed-level stratigraphic resolution
Environment/lithology: estuary or bay; sandstone
Size classes: macrofossils, mesofossils
Collection methods: sieve,
• Wick, 2021: The material was then water screened through (stacked) 6 mm and 0.8 mm screens...specimens and locality data are housed at the Vertebrate Paleontology Laboratory at the Jackson School Museum of Earth History (TMM), University of Texas
Primary reference: T. M. Lehman, S. L. Wick, A. B. Brink and T. A. Shiller, II. 2019. Stratigraphy and vertebrate fauna of the lower shale member of the Aguja Formation (lower Campanian) in West Texas. Cretaceous Research 99:291-314 [P. Holroyd/P. Holroyd]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 200385: authorized by Patricia Holroyd, entered by Patricia Holroyd on 01.04.2019, edited by Philip Mannion and Grace Varnham
Creative Commons license: CC BY (attribution)
Taxonomic list
Amphibia | |
Albanerpeton sp.2 Estes and Hoffstetter 1976 tetrapod TMM 45947-623 (fragmentary left maxilla); TMM 45947-624 (fragmentary right maxilla); TMM 45947-625 (fragmentary right maxilla); TMM 45947-627 (fragmentary left dentary); TMM 45947-632, (fragmentary atlantal centrum); TMM 45947-633 (axis); TMM 45947-634 (articular); TMM 45947-635 (fragmentary ?right parietal); TMM 45947-637 (fragmentary right frontal)
Albanerpeton cf. galaktion2 Fox and Naylor 1982 tetrapod TMM45947-629 (fragmentary left premaxilla); TMM45947-631 (fragmentary right premaxilla)
"Albanerpeton nexuosum" = Albanerpeton nexuosus2 Estes 1981 tetrapod TMM 45947-626 (fragmentary left dentary); TMM45947- 628 (middle portion of right maxilla); TMM 45947-630 (fragmentary left premaxilla); TMM 45947-636 (fragmentary left frontal)
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Reptilia | |
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Varanoidea indet.3, Scincomorpha indet.3, cf. Apsgnathus triptodon3, cf. Bothriagenys sp.3, Bothriagenys flectomendax n. sp.3, Bothriagenys mysterion3, Borioteiioidea indet.3
Bothriagenys flectomendax n. sp.3 Wick and Shiller 2020 squamates TMM 45947-517 - type; referred material: TMM 45947-515, -516, -518
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cf. Chamopsiidae "indet. 1"3, cf. Chamopsiidae "indet. 2"3, aff. Chamopsiidae indet.3, cf. Socognathus sp.3, aff. Socognathus sp.3
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Hydrargysaurus gladius n. gen. n. sp.3 Wick and Shiller 2020 squamates TMM 45947-533 - type; referred material: TMM 45947-534, -535, -536
aff. Coniophis sp.3 Marsh 1892 snake TMM 45947-553, -554, -555, -556, -557, -558, -559, -560, -561, -562
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Hypostylos lehmani n. gen. n. sp.3
Hypostylos lehmani n. gen. n. sp.3 Wick and Shiller 2020 squamates TMM 45947-502 - type; referred material: TMM 45947-501, -503, -504, -505, -541, -567
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Ornithomimidae indet. Marsh 1890 ornithomimid unnamed new genus and species; part of right MT IV, TMM 45947-494; pedal phalanges, TMM 45947-495
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Tyrannosauridae indet. Osborn 1906 tyrannosaurid fragmentary right frontal; TMM 45947-487; caudal vertebra, TMM 45947-496
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Hadrosauridae indet. hadrosaurid unnamed new genus and species; skull roof and braincase, TMM 45947-489; part of neurocranium, TMM 45947- 488; fragmentary frontal and postorbital, TMM 45947-490; proximal end of pubis, TMM 45947- 493; proximal end of scapula, TMM 45947-492; femur, TMM 45947-491; teeth, 45947-499, 45947-500
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Goniopholididae indet. Cope 1875 crocodilian TMM 45947-498 (partial sacrum); unnamed new genus and species
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