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: G. D. Stanley, Jr. 1979. Paleoecology, structure, and distribution of Triassic coral buildups in western North America. The University of Kansas Paleontological Contributions 65:1-68 [A. Miller/S. Kolbe]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 100517: authorized by Arnold Miller, entered by Sarah Kolbe on 09.12.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ceratitida - Tropitidae
Tropites sp.
Tropites sp. Mojsisovics 1875 ceratite
Gastropoda
 Trochoidea - Trochidae
Trochidae indet.
Trochidae indet. Rafinesque 1815 top snail
Bivalvia
  -
Bivalvia indet.
Bivalvia indet. Linnaeus 1758 clam
thick spinose and thin-shelled forms
 Ostreida - Halobiidae
Halobiidae indet.
Halobiidae indet. Kittl 1912 oyster
Echinoidea
  -
Echinoidea indet.
Echinoidea indet. Leske 1778 sea urchin
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily
Hydrozoa
 Spongiomorphida - Spongiomorphidae
Heptastylis (cf. Heptastylis) aquilae, Spongiomorpha (cf. Spongiomorpha) acyclica
Anthozoa
 Scleractinia - Montlivaltiidae
"Montlivaltia" sp.
"Montlivaltia" sp. Lamouroux 1821 stony coral
 Scleractinia - Microsolenidae
"Spongiomorpha (cf. Spongiomorpha) dendriformis" = Eocomoseris ramosa
"Spongiomorpha (cf. Spongiomorpha) dendriformis" = Eocomoseris ramosa Frech 1890 stony coral
 Scleractinia - Margarophylliidae
""Thecosmilia" ("Thecosmilia") confluens" = Margarosmilia confluens
""Thecosmilia" ("Thecosmilia") confluens" = Margarosmilia confluens Münster 1841 stony coral
 Scleractinia - Thamnasteriidae
Thamnasteria sp., Thamnasteria (cf. Thamnasteria) borealis
Thamnasteria sp. LeSauvage 1823 stony coral
 Scleractinia - Stylophyllidae
Stylophyllum sp.
Stylophyllum sp. Reuss 1854 stony coral
 Scleractinia - Oppelismiliidae
Oppelismilia sp.
Oppelismilia sp. Duncan 1867 stony coral
Calcarea
 Calcaronea - Endostomatidae
"Corynella sp." = Endostoma
"Corynella sp." = Endostoma Roemer 1864 calcareous sponge
Demospongiae
 Agelasida - Guadalupiidae
"Ascosymplegma sp." = Discosiphonella
"Ascosymplegma sp." = Discosiphonella Inai 1936 demosponge
 Agelasida - Cryptocoeliidae
Cryptocoelia sp.
Cryptocoelia sp. Steinmann 1882 demosponge
 Agelasida - Sebargasiidae
Amblysiphonella (cf. Amblysiphonella) timorica
Amblysiphonella (cf. Amblysiphonella) timorica Vinassa de Regny 1915 demosponge
 Verticillitida - Colospongiidae
"Waagenella (cf. Waagenella) utriculus" = Colospongia
"Waagenella (cf. Waagenella) utriculus" = Colospongia demosponge
Foraminifera
 Foraminifera -
Foraminifera indet.
Foraminifera indet. foram
tubular, planispiral forms
 Endothyroidea - Endothyridae
? Endothyridae indet.
Nodosariata
 Nodosariida - Nodosariidae
cf. Nodosaria sp.
cf. Nodosaria sp. Lamarck 1812