ammonites
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 6.2° N, 40.9° W)

• coordinate stated in text

• local area-level geographic resolution

When: Garita Creek Formation, Carnian (235.0 - 221.5 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 [K. Behrensmeyer/K. Behrensmeyer/M. Kosnik] more details

Purpose of describing collection: taphonomic analysis

PaleoDB collection 22718: authorized by Kay Behrensmeyer, entered by Kay Behrensmeyer on 29.05.2001, edited by Matt Carrano

Creative Commons license: CC BY (attribution)