PBDB Collection

Crocodilian Locality D (Miocene of the United States)

Where: Antelope County, Nebraska (42.4° N, 98.1° W: paleocoordinates 42.8° N, 95.5° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Cap Rock Member (Ash Hollow Formation), Clarendonian (12.5 - 9.4 Ma)

• "Clarendonian"

• bed-level stratigraphic resolution

Environment/lithology: pond; lenticular, calcareous claystone

• "pond"

• "a small lens of highly calcareous clay"

Size class: macrofossils

Collected by M. Voorhies; reposited in the UNSM

Collection methods: surface (in situ),

Primary reference: M. R. Voorhies. 1971. Paleoclimatic significance of crocodilian remains from the Ogallala Group (upper Tertiary) in northeastern Nebraska. Journal of Paleontology 45(1):119-121 [J. Alroy/J. Alroy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 74098: authorized by John Alroy, entered by John Alroy on 22.07.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• apparently not the same as Bluejay Quarry, which is in the same section but in a sandstone in the Merritt Dam Member, or as Poison Ivy Quarry, which is a bonebed in a volcanic tuff

Show authors, comments, and common names

Mammalia
Rodentia - Castoridae	Eucastor sp. Eucastor sp. Allen 1877 beaver "advanced"
Perissodactyla - Equidae	Hipparionini indet. Hipparionini indet. Quinn 1955 hipparionine horse "large"
Perissodactyla - Rhinocerotidae	Teleoceras sp. Teleoceras sp. Hatcher 1894 rhinoceros
Reptilia
Testudines - Trionychidae	Trionychidae indet. Trionychidae indet. Gray 1825 softshell turtle "soft-shelled turtles"
Loricata -	Crocodylia indet. Crocodylia indet. crocodilian "crocodilian"; 2 teeth, dermal plate
Amphibia
Salientia -	Anura indet. Anura indet. frog "frogs"
Actinopteri
Lepisosteiformes - Lepisosteidae	Lepisosteidae indet. Lepisosteidae indet. Cuvier 1825 gar "gar"
Teleostei -	Cyprinodontiformes indet., Siluriformes indet. Cyprinodontiformes indet. Bertin 1958 "cyprinodont fishes" Siluriformes indet. catfish "catfish"