southern end, Cape Sebastian (Cretaceous of the United States)

Where: Curry County, Oregon (42.3° N, 124.4° W: paleocoordinates 50.0° N, 92.7° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Cape Sebastian Sandstone Formation, Late/Upper Campanian (83.5 - 70.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: offshore; bioturbated, fine-grained, intraclastic sandstone

• "a fining upward succession trending from foreshore to offshore depositional environments"; fossil from "inner shelf" environment
• "a fine, well-sorted, “structureless” sandstone with abundant carbonized woody debris and occasional rip-up mudstone clasts several centimeters in diameter."

Size class: macrofossils

Collected by D. Taylor in 1969, 1994

Collection methods: mechanical,

• "In March 1969, a party from the Department of Paleontology, University of California, Berkeley, visited the site. At that time, the crew relocated and made a sketch of the specimen (Fig. 2A) and recognized that the bones were from a dinosaur. The Northwest Museum of Natural History Association excavated the specimen in 1994 (Fig. 2B) and ascertained that the fossil is a sacrum. Preliminary preparation revealed at least eight sacral vertebrae, which suggested a hadrosaur. The specimen was fully prepared between 2013 and 2016."

Primary reference: J. Bourgeois. 1980. A transgressive shelf sequence exhibiting hummocky stratification: the Cape Sebastian Sandstone (Upper Cretaceous), southwestern Oregon. Journal of Sedimentary Petrology 50(3):681-702 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 179274: authorized by Matthew Carrano, entered by Matthew Carrano on 09.06.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Ornithischia - Hadrosauridae
? Hadrosaurinae indet. Lambe 1918 hadrosaurine
NWM 2150, partial sacrum