Delta T (AMNH-YPM) (Jurassic of the United States)

Where: Albany County, Wyoming (41.9° N, 106.0° W: paleocoordinates 37.8° N, 52.6° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Morrison Formation, Tithonian (152.1 - 145.0 Ma)

• near Morrison-Cloverly contact

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Collected in 1968–1970; reposited in the AMNH, YPM

Collection methods: quarrying, mechanical,

Primary reference: D. R. Prothero. 1981. New Jurassic mammals from Como Bluff, Wyoming, and the interrelationships of non-tribosphenic Theria. Bulletin of the American Museum of Natural History 167(5):277-326 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 39429: authorized by Matthew Carrano, entered by Matthew Carrano on 28.05.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Dipnoi - Ceratodontidae
Ceratodus sp. Agassiz 1838 lungfish
 Multituberculata - Plagiaulacidae
Plagiaulacidae indet. Gill 1872 multituberculate
 Loricata - Goniopholididae
Goniopholis sp. Owen 1842 crocodilian
 Testudinata - Pleurosternidae
Dinochelys whitei Gaffney 1979 turtle