NMMNH L-4479, Adobe Canyon (Cretaceous of the United States)

Where: Santa Cruz County, Arizona (31.7° N, 110.8° W: paleocoordinates 39.7° N, 84.0° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: "shale" Member (Fort Crittenden Formation), Late/Upper Campanian (83.5 - 70.6 Ma)

• member-level stratigraphic resolution

Environment/lithology: terrestrial; mudstone and siltstone

• "fine-grained strata, principally mudrocks and silty mudrocks, are interbedded, repetitively, with subordinate amounts of siltstone and mudstone."

Size classes: macrofossils, mesofossils

Reposited in the NMMNH

Collection methods: quarrying,

Primary reference: A. B. Heckert, S. G. Lucas, and S. E. Krzyzanowski. 2003. Vertebrate fauna of the late Campanian (Judithian) Fort Crittenden Formation, and the age of Cretaceous vertebrate faunas of southeastern Arizona (U.S.A.). Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 227(3):343-364 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 68255: authorized by Matthew Carrano, entered by Matthew Carrano on 11.01.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

 Unionida - Unionidae
"Plesielliptio sp." = Elliptio (Plesielliptio)
"Plesielliptio sp." = Elliptio (Plesielliptio) Russell 1934 freshwater mussel
 Architaenioglossa - Viviparidae
Viviparus sp. Montfort 1810 snail
 Pycnodontiformes - Pycnodontidae
Pycnodontidae indet. Agassiz 1835
 Amiiformes - Amiidae
Melvius sp. Bryant 1987 bowfin
 Lepisosteiformes - Lepisosteidae
Lepisosteidae indet. Cuvier 1825 gar
 Testudines - Trionychidae
Trionychidae indet. Gray 1825 softshell turtle
 Testudines - Adocidae
Adocus sp. Cope 1868 turtle
 Avetheropoda - Tyrannosauridae
Tyrannosauridae indet. Osborn 1906 tyrannosaurid
 Loricata -
Crocodylia indet. crocodilian
 Crocodylia -
Alligatoroidea indet. Gray 1844 crocodilian