Cystiphyllid Assemblage, Keyser Limestone, Virgina and Maryland (Silurian of the United States)

Where: Virginia (38.0° N, 80.0° W: paleocoordinates 34.2° S, 44.3° W)

• coordinate based on political unit

• basin-level geographic resolution

When: Keyser Limestone Formation, Pridoli (423.0 - 419.2 Ma)

• lower limestone, Byers Island member, and Jersey Shore member of Keyser Limestone.

Environment/lithology: deep subtidal ramp; carbonate

• "...seems to represent deeper and quieter conditions with more mud than the Ptenophyllid Assemblage...A quiet water, BA 3-4 situation is postulated."

Collection methods: Emphasis here is on the rugosans. Tabulates, brachiopods, stromatoporoids, "other shelly fossils" are present but not listed.

Primary reference: W. A., J.r. Oliver. 1999. The principal Pridolian and Lochkovian rugose coral assemblages or communities in eastern North America. In A. J. Boucot, J. D. Lawson (eds.), Paleocommunities: A case study from the Silurian and Lower Devonian 800-805 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 24951: authorized by Michael Foote, entered by Michael Foote on 23.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Stromatoporoidea
 Stromatoporoidea -
Stromatoporoidea indet. stromatoporoid sponge
Anthozoa
 Favositida - Favositidae
Favositidae indet. Dana 1846 tabulate coral
Favosites sp. Lamarck 1816 tabulate coral
 Auloporida - Auloporidae
Auloporidae indet. Milne-Edwards and Haime 1850 tabulate coral
 Cystiphyllida - Fletcheriidae
 Cystiphyllida - Tryplasmatidae
Tryplasma sp. Lonsdale 1845 horn coral
n. sp. k
 Cystiphyllida - Cystiphyllidae
Cystiphyllum sp. Lonsdale 1839 horn coral
sp. A
Cystiphylloides sp. Chapman 1893 horn coral
sp. A
 Stauriida - Ptenophyllidae
Spongophylloides sp. n. sp. Meyer 1881 horn coral
n. sp. n; genus name in quotes
 Stauriida - Pycnostylidae
Zelophyllum spp. Wedekind 1927 horn coral
 Stauriida - Laccophyllidae
Laccophyllidae indet. Grabau 1928 horn coral
 Stauriida - Kodonophyllidae
? Kodonophyllidae indet. Wedekind 1927 horn coral
Kodonophyllid n.g. n. sp.
Brachiopoda
  -
Brachiopoda indet. Cuvier 1805