USGS Paleozoic loc. M1127, Funeral Mountains (Silurian of the United States)

Also known as JFM661022J

Where: Inyo County, California (36.4° N, 116.6° W: paleocoordinates 11.3° S, 71.2° W)

When: Hidden Valley Dolomite Formation, Wenlock (433.4 - 427.4 Ma)

• Hidden Valley Dolomite, lower member, same horizon as JFM 6354Ca that is about 100 ft above base of formation

Environment/lithology: lithified, brown, gray, red, argillaceous, cherty/siliceous dolomite and intraclastic conglomerate

• The middle unit (h2), about 100 feet thick, is less resistant and produces a generally concealing rubble that is a distinctive reddish brown and gray. The unit consists of thin-bedded medium-to light-gray very fine grained dolomite and subordinate interstratified chert (fig. 4). The chert characteristically is in very thin beds and in flat nodules. Argillaceous and silty material, which weathers to a distinctive reddish brown, is dispersed in some of the dolomite and it lines partings of flaggy beds. Intraformational conglomerate or sedimentary breccia in an 8-foot bed near the top of the unit consists of lithologically varied dolomite and chert fragments in a dolomite matrix.

Size classes: macrofossils, mesofossils

Preservation: original aragonite, original calcite, original phosphate, replaced with dolomite, replaced with silica

Collected by J. F. McAllister in 1963; reposited in the USGS

Collection methods: surface (float), surface (in situ),

Primary reference: J. F. McAllister. 1974. Silurian, Devonian, and Mississippian Formations of the Funeral Mountains in the Ryan Quadrangle, Death Valley Region, California. United States Geological Survey Bulletin 1386:1-35 [J. Marcot/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 225999: authorized by Jonathan Marcot, entered by Jonathan Marcot on 10.06.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Anthozoa
 Stauriida - Lykophyllidae
Ryderophyllum "n. sp."
Ryderophyllum "n. sp." Cherepnina 1965 horn coral
 Stauriida - Streptelasmatidae
Brachyelasma "sp. B"
Brachyelasma "sp. B" Lang et al. 1940 horn coral
 Favositida - Favositidae
Favosites sp.
Favosites sp. Lamarck 1816 tabulate coral
 Heliolitida - Halysitidae
"Halysites (Cystihalysites) cf. magnitubus" = Halysites magnitubus
"Halysites (Cystihalysites) cf. magnitubus" = Halysites magnitubus Buehler 1955 tabulate coral