Dolores River Canyon fish locality A (Triassic to of the United States)

Where: Montrose County, Colorado (38.3° N, 108.9° W: paleocoordinates 14.5° N, 47.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Chinle Formation, Norian to Norian (228.0 - 201.3 Ma)

• Upper part of Chinle Formation

• group of beds-level stratigraphic resolution

Environment/lithology: "channel"; red siltstone

• "Channel"
• Fish found in and immediately below a "resistant, deep red, ripple-laminated siltstone that appears to be a channel deposit"

Size classes: macrofossils, mesofossils

Collected in the 1950s, 1960s; 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 135699: authorized by Richard Butler, entered by Richard Butler on 03.11.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Actinopteri
 Palaeonisciformes -
Tanaocrossus kalliokoskii n. gen. n. sp. Schaeffer 1967
AMNH 5700 (holotype)
 Palaeonisciformes - Palaeoniscidae
Turseodus dolorensis n. sp. Schaeffer 1967
AMNH 5614 (holotype). AMNH 5602-5613, 5633-5635, 5648, 5649, PU 19189
 Palaeonisciformes - Redfieldiidae
Cionichthys dunklei Schaeffer 1967
AMNH 5626, 5627, 5628, 5629, 5650, 5651
Synorichthys stewarti Schaeffer 1967
AMNH 5699, 5675, 5677. PU 19321
 Semionotiformes - Semionotidae
Semionotus sp. Agassiz 1843
AMNH 5696
Coelacanthimorpha
 Coelacanthiformes - Coelacanthidae
Chinlea sorenseni Schaeffer 1967 coelacanth
AMNH 5653