Also known as Bonebed 31

Where: Alberta, Canada (50.8° N, 111.5° W: paleocoordinates 58.1° N, 76.0° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Dinosaur Park Formation (Belly River Group), Late/Upper Campanian (83.5 - 70.6 Ma)

• Microvertebrate sites of Brinkman (1990) are "...placed in stratigraphic sequence by reference to a disconformity located about sixty meters below the base of the Lethbridge Coal (Eberth, 1990). The stratigraphic position of each site is expressed in terms of meteres above or below the disconformity (Fig. 2, Brinkman, 1990)" where positive numbers are above and negative below.

• bed-level stratigraphic resolution

Environment/lithology: crevasse splay; fine-grained, medium, sideritic, silty sandstone

Size classes: macrofossils, mesofossils

Preservation: replaced with siderite

Collected by R. A. Mussieux & D. Tanke in 1984; reposited in the TMP

Collection methods: bulk, surface (float), sieve,

• BB 31 was the first site in Dinosaur Park to yield egg shell fragments (fragments are <1 cm in maximum dimension).

Primary reference: D. B. Brinkman. 1986. Microvertebrate sites: progress and prospectus. In B. G. Naylor (ed.), Field Trip Guidebook to Dinosaur Provincial Park, 2 June 1986. Dinosaur Systematics Symposium, Tyrrell Museum of Palaeontology, Drumheller, Alberta 24-37 [M. Carrano/M. Carrano]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 47816: authorized by Robin Whatley, entered by Robin Whatley on 02.03.2005, edited by Matthew Carrano, Philip Mannion, Patricia Holroyd and John Alroy

Creative Commons license: CC BY (attribution)