Jennings & Johnson locality (YPM) (Jurassic to of the United States)

Also known as Garden Park, CaƱon City

Where: Fremont County, Colorado (38.5° N, 105.2° W: paleocoordinates 34.0° N, 52.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Brushy Basin Member (Morrison Formation), Kimmeridgian to Kimmeridgian (157.3 - 145.0 Ma)

• probably high in formation, but location debated for many years

• bed-level stratigraphic resolution

Environment/lithology: crevasse splay; fine-grained, ferruginous, red, argillaceous sandstone

• "brick-red, fine-grained sandstones...poorly sorted...predominately of quartz, K-feldspar, and kaolin-type clays set in dark ferruginous matrix."

Size class: macrofossils

Collected by D. Baldwin; reposited in the YPM

Collection methods: surface (float), mechanical,

Primary reference: O. C. Marsh. 1877. Notice of some new vertebrate fossils. American Journal of Arts and Sciences 14:249-256 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 48167: authorized by Matthew Carrano, entered by Matthew Carrano on 15.03.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

 Loricata -
"Nanosaurus victor n. sp." = Hallopus victor
"Nanosaurus victor n. sp." = Hallopus victor Marsh 1877 crocodilian
YPM 1914