USGS loc. M80, Gregg Ranch area, Klamath Mountains (Silurian to of the United States)

Also known as Reef 2408

Where: Siskiyou County, California (41.4° N, 122.7° W: paleocoordinates 7.2° S, 66.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Gazelle Formation, Ludlow to Ludlow (427.4 - 419.2 Ma)

• Late Silurian or Early Devonian

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified, calcareous conglomerate

• Fossiliferous limestone cobbles from conglomerate.

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: C. W. Merriam. 1972. Silurian rugose corals of the Klamath Mountains region, California. United States Geological Survey Professional Paper 738:1-50 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 79806: authorized by Wolfgang Kiessling, entered by Uta Merkel on 25.03.2008, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Protorthida - Skenidiidae
Skenidioides sp.
Skenidioides sp. Schuchert and Cooper 1931
 Orthida - Hesperorthidae
Hesperorthis sp.
Hesperorthis sp. Schuchert and Cooper 1931
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail
"Progalerus or Cyrtospira sp."
 Murchisoniina - Murchisoniidae
? Murchisonia sp.
? Murchisonia sp. d'Archiac and de Verneuil 1841 snail
 Murchisoniina - Lophospiridae
Lophospiridae indet.
Lophospiridae indet. Wenz 1938 snail
"Eunema or Lophospira cf. L. bicincta (Hall) Lindstrom"
 Murchisoniina - Loxonematidae
? Loxonema sp.
? Loxonema sp. Phillips 1841 snail
 Euomphalina - Holopeidae
Holopea cf. symmetrica
Holopea cf. symmetrica Hall 1847 snail