Shark Tooth Hill, NMMNH Loc. 487 (Triassic of the United States)

Also known as NMMNH L-487, SMU Loc. #133, SMU Loc. #134

Where: Quay County, New Mexico (35.0° N, 103.3° W: paleocoordinates 9.9° N, 43.0° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Duke Ranch Member (Redonda Formation), Norian (228.0 - 208.5 Ma)

• upper part of formation, Apachean. Two levels.

• group of beds-level stratigraphic resolution

Environment/lithology: "floodplain"; ooidal conglomerate and lenticular, red siltstone

• "a subaqueous flow or beach deposit", with one locality probably an overbank.crevasse splay, and another a pond.
• "a 40-50-cm-thick, matrix-supported conglomerate" with oolites; also a "red lenticular siltstone"

Size classes: mesofossils, microfossils

Collected by P. Murry, A. Hunt, S. Lucas in 1981, 1986-1987; reposited in the NMMNH

Collection methods: bulk, sieve,

Primary reference: P. A. Murry. 1989. Geology and paleontology of the Dockum Formation (Upper Triassic), west Texas and eastern New Mexico. In S. G. Lucas and A. P. Hunt (eds.), Dawn of the Age of Dinosaurs in the American Southwest, New Mexico Museum of Natural History, Albuquerque 102-144 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 83737: authorized by Matthew Carrano, entered by Matthew Carrano on 28.08.2008, edited by Richard Butler

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Ostracoda
  -
Darwinula sp.1 Brady and Robertson 1885 ostracod
Polychaeta
 Sabellida - Serpulidae
"Spirorbis" sp.1 Daudin 1800
Gnathostomata
  -
Osteichthyes indet.4 bony fish
NMMNH P-41850-41854, 41861, 41897
Actinopterygii indet.4 ray-finned fish
NMMNH P-41855, 41856, 17090
Actinopteri
 Chondrostei -
 Palaeonisciformes - Redfieldiidae
Redfieldiidae indet. Hutchinson 1973
NMMNH P-41858, 41859, 41893
cf. Lasalichthys sp. Schaeffer 1967
 Semionotiformes - Semionotidae
Semionotidae indet.4 Woodward 1890
NMMNH P-41857, 41894-41896
Osteichthyes
 Temnospondyli - Metoposauridae
Metoposauridae indet.3 Watson 1919 tetrapod
NMMNH P-41876, 41860
Metoposauridae indet.3 Watson 1919 tetrapod
NMMNH P-17099
Reptilia
  -
Reptilia indet.4 Laurenti 1768 reptile
NMMNH P-17086, 17087, 17097, 17101, 17111, 41862, 41863-41875
Reptilia indet.3 Laurenti 1768 reptile
NMMNH P-41898, 41849, 41899
 Archosauria -
Archosauria indet.4 Cope 1869 archosaur
NMMNH P-41877-41882, 41884-41886
Archosauria indet.3 Cope 1869 archosaur
Archosauria indet.3 Cope 1869 archosaur
NMMNH P-41887, tooth
Archosauria indet.3 Cope 1869 archosaur
NMMNH P-41888, partial tooth
 Pseudosuchia - Stagonolepididae
Redondasuchus sp.3 Hunt and Lucas 1991 archosaur
YPM 4256, paramedian plate. NMMNH 17091, plate fragments
 Phytosauria - Parasuchidae
"Phytosauridae indet." = Mystriosuchinae1, Redondasaurus gregorii n. gen. n. sp.2
"Phytosauridae indet." = Mystriosuchinae1 von Huene 1915 archosaur
Redondasaurus gregorii n. gen. n. sp.2 Hunt and Lucas 1993 archosaur
YPM 3294, skull