southern Egan Range (Silurian to of the United States)

Also known as Pentlandella Community in the Laketown Dolomite, southern Egan Range, Nevada

Where: Nevada (38.5° N, 115.0° W: paleocoordinates 9.7° S, 70.6° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Gettel Lake Member (Laketown Dolomite Formation), Llandovery to Llandovery (443.4 - 427.4 Ma)

• C6 (Llandoverian) to Lower Wenlock. Sheehan in this reference says material is from Gettel member, but Sheehan in Boucot [PBDB ref. 6948, p. 567] says High Lake Member.

• member-level stratigraphic resolution

Environment/lithology: open shallow subtidal; silty dolomite

• "quiet water BA 3" From ref. 6948: "In stratigraphic sequence the collections are found between crinonid and Verticillipora thickets and a shallow water occurrence of the BA 4 Atrypina Community, which contains some specimens of Pentameroides, i.e., close to the BA 3-4 boundary."

•SEP environmental call based on given info. and knowledge of regional strat.

• "silty dolomite"

Size class: macrofossils

Reposited in the USNM

• USNM localities 19180 and 19193 combined. Abundances given in table 7.

Primary reference: P. M. Sheehan. 1980. Paleogeography and marine communities of the Silurian carbonate shelf in Utah and Nevada. in T. D. Fouch and E. R. Magathan, eds. Paleozoic paleogeography of west-central United States. Rocky Mountain Section, SEPM 19-37 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 24886: authorized by Michael Foote, entered by Michael Foote on 22.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Anthozoa
 Stauriida - Streptelasmatidae
Asthenophyllum sp. Grubbs 1939 horn coral
Rhynchonellata
 Orthida -
Orthida indet. Schuchert and Cooper 1932
fine ribbed orthid
 Atrypida - Atrypinidae
Spirigerina sp. d'Orbigny 1849
sp. A
Atrypina erugata Amsden 1968
 Atrypida - Atrypidae
Atrypidae indet. Gill 1871
 Atrypida - Anazygidae
Strophomenata
 Strophomenida - Plectambonitidae
Plectambonitidae indet. Kozlowski 1929