Schaeffer Fish Quarry, Otis Chalk (Triassic of the United States)

Where: Howard County, Texas (32.2° N, 101.3° W: paleocoordinates 6.9° N, 41.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Colorado City Formation (Dockum Group), Norian (228.0 - 208.5 Ma)

• At approximately the same stratigraphic level as nearby "Otis Chalk" quarries

• bed-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; red siltstone

Size classes: macrofossils, mesofossils

Collected in 1954, 1963; reposited in the AMNH

Collection methods: quarrying,

Primary reference: B. Schaeffer. 1967. Late Triassic fishes from the western United States. Bulletin of the American Museum of Natural History 135(6):285-342 [R. Butler/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 135713: authorized by Richard Butler, entered by Richard Butler on 05.11.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Actinopteri
 Chondrostei -
Palaeonisciformes indet. Hay 1902
AMNH 5720, 5662, material potentially representing 2-3 unnamed species
 Palaeonisciformes - Redfieldiidae
Cionichthys greeni n. sp. Schaeffer 1967
AMNH 5600 (holotype), 5596, 5597, 5598, 5599
Lasalichthys hillsi Schaeffer 1967
AMNH 5722
? Synorichthys stewarti Schaeffer 1967
AMNH 5722