Lamy Amphibian Quarry, NMMNH Loc. 1176 (bed 7) (Triassic of the United States)

Also known as ETE Locality 1594, NMMNH L-1176

Where: Santa Fe County, New Mexico (35.2° N, 105.8° W: paleocoordinates 3.8° N, 38.8° W)

• coordinate stated in text

• local area-level geographic resolution

When: Garita Creek Formation, Carnian (237.0 - 228.0 Ma)

• lower part of formation, ca. 4m above lower contact; Adamanian/late Carnian age

• bed-level stratigraphic resolution

Environment/lithology: lacustrine - small; paleosol/pedogenic, red, sandy mudstone

• ETE sed env 1: fluvial, ETE sed env 2: shallow_lake ETE event: ., ETE env comment: drought; ref 40637: layer consists of pedogenically modied floodplain mudstones, calcic alfisols - no evidence of a pond or severe drought.
• "The amphibian quarry bonebed...consists of red sandy mudstone with some green and purple mottles and is densely packed with tetrapod bones...The bones are coated by a thin (~ 1 mm) carbonate crust and some rhizoliths are present."

Size class: macrofossils

Collected by Witter, White, Dunkle, Pearce, Sternberg in 1936, 1938, 1947, 2007; reposited in the MCZ, NMMNH, UNSM

Collection methods: bulk, quarrying, surface (in situ), mechanical, sieve,

• ETE reference list: 478, 483, 482, 1005; 1936, MCZ, Mr. and Mrs. R. V. Witter; excavated by R. V. Witter and T. E. White 1938. 1947, USNM, D. H. Dunkle, F. Pearce, and G. Sternberg. NMMNH excavations starting in 2007.

Primary reference: A. S. Romer. 1939. An amphibian graveyard. The Scientific Monthly 49:337-339 [A. Behrensmeyer/A. Behrensmeyer/M. Kosnik]more details

Purpose of describing collection: taphonomic analysis

PaleoDB collection 22718: authorized by Anna Behrensmeyer, entered by Anna Behrensmeyer on 29.05.2001, edited by Matthew Carrano and Bryan Gee

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
  -
Reptilia indet.3 Laurenti 1768 reptile
MCZ uncat. vertebrae
 Diapsida - Azendohsauridae
Azendohsauridae indet.1 Nesbitt et al. 2015 archosauromorph
MCZ VPRA-9559, anterior cer- vical vertebra; MCZ 101539, anterior cervical vertebra and rib fragment; MCZ 101531, conjoined articular and surangular; MCZ 101532, ungual; MCZ 101533, caudal vertebra; MCZ 101534, caudal vertebra; MCZ 101535, caudal vertebra; MCZ 101536, metatarsal II; MCZ 101577, broken neural spine.
 Archosauria -
Archosauria indet.4 Cope 1869 archosaur
sacrum, caudal
 Theropoda -
Theropoda indet.3 theropod
small; MCZ uncat. ungual, metapodials, caudals
 Phytosauria -
Phytosauria indet.2 archosaur
teeth
Heterodontichnites hunti n. gen. n. sp.6 Rinehart et al. 2006 archosaur
on NMMNH P-18111
 Diapsida - Tanystropheidae
Tanystropheidae indet.1 Gervais 1859 archosauromorph
MCZ 101537, caudal vertebra; MCZ 101538, anterior caudal vertebra
Amphibia
 Temnospondyli - Metoposauridae
? Metoposauridae indet.4, "Buettneria perfecta" = Anaschisma browni3
? Metoposauridae indet.4 Watson 1919 tetrapod
juvenile skull elements
"Buettneria perfecta" = Anaschisma browni3 Branson 1905 tetrapod
Gnathostomata
  -
Actinopterygii indet.5 ray-finned fish
NMMNH P-34232
Actinopteri
 Semionotiformes - Semionotidae
Semionotidae indet.4 Woodward 1890
Osteichthyes
 Palaeonisciformes - Redfieldiidae
Redfieldiidae indet.4 Hutchinson 1973