Where: Fresno County, California (36.6° N, 120.7° W: paleocoordinates 42.4° N, 96.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Marca Member (Moreno Formation), Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• There is uncertainty on the boundary between the Moreno and Panoche Formations in the area. Stock (1941) reported the specimen was found in strata 150 ft. below the Siphagenerinoides zone, however this zone has been referred to the Moreno Formation and the Panoche Formation by geologists. Considered to come from upper part (Marca Mb.) by Bell & Evans 2010.

• bed-level stratigraphic resolution

Environment/lithology: offshore; shale

Size class: macrofossils

Collected by C. Stock in the 1940s; reposited in the CIT, LACM

Collection methods: quarrying, mechanical,

Primary reference: C. Stock. 1948. Occurrences of dinosaurs in the Upper Cretaceous of California. Yearbook of the American Philosophical Society 147:133 [M. Carrano/A. Murch]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 55359: authorized by Matthew Carrano, entered by Kaitlin Maguire on 12.10.2005, edited by Matthew Carrano and Jonathan Tennant

Creative Commons license: CC BY (attribution)