Black Marble Quarry, Martin Bridge Formation, Enterprise, OR (Triassic to of the United States)

Where: Oregon (45.4° N, 117.3° W: paleocoordinates 18.4° N, 51.3° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Martin Bridge Formation, Carnian to Carnian (237.0 - 208.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; black, carbonaceous packstone and black, carbonaceous lime mudstone

• very black limestone with a high carbon content

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 41468: authorized by David Bottjer, entered by Catherine Powers on 14.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Black Marble Quarry bivalves: Wallowaconchids
Hydrozoa
 Spongiomorphida - Spongiomorphidae
Heptastylis sp. Frech 1890
Anthozoa
 Scleractinia - Reimaniphylliidae
Retiophyllia sp. Cuif 1966 stony coral
 Scleractinia - Montlivaltiidae
Elysastraea sp. Laube 1865 stony coral
[entered as Elyastrea sp.]