Ant Hill Bioherm, Suplee-Izee, Oregon (Jurassic of the United States)

Where: Oregon (44.1° N, 119.5° W: paleocoordinates 27.6° N, 56.4° W)

• coordinate stated in text

• local area-level geographic resolution

When: Robertson Formation (Mowich Group), Early/Lower Jurassic (201.3 - 174.1 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; bafflestone and rudstone

• The Robertson Formation is comprised of a sandy pebble conglomerate, volcanic sandstone and minor grey limestone units.

Size class: macrofossils

Primary reference: N. M. Fraser. 1997. Large epifaunal bivalves from Mesozoic buildups of Western North America. [D. Bottjer/C. Powers/C. Jamet]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 41470: authorized by David Bottjer, entered by Catherine Powers on 14.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ostreida - Malleidae
 Heterobranchia - Nerineidae
Nerinea sp. Deshayes 1827 snail