UCMP 11000, Lead Canyon (Ordovician of the United States)

Where: Inyo County, California (37.0° N, 118.1° W: paleocoordinates 3.5° S, 89.5° W)

• coordinate stated in text

When: Didymograptus protobifidus graptolite zone, Al Rose Formation, Ibexian (488.3 - 471.8 Ma)

• Graptolite zone 6

• formation-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Reposited in the UCMP

Collection methods: bulk

• All rock samples at the localities that contained any organic remains were collected, regardless of the fragmentary condition of the fossils.

Primary reference: R. A. Hanger. 1992. Fauna of the Lower Ordovician Al Rose Formation, Mazourka Canyon, Inyo County, California. In C. A. Hall, Jr., V. Doyle-Jones, B. Widawski (eds.), The History of Water: Eastern Sierra Nevada, Owens Valley, White-Inyo Mountains 14-16 [J. Marcot/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 205357: authorized by Jonathan Marcot, entered by Jonathan Marcot on 11.10.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Scyphozoa
 Conulariida -
? Conulariida indet. Miller and Gurley 1896 jellyfish
"conularids?"
Trilobita
 Asaphida - Nileidae
? Peraspis sp. Whittington 1965 trilobite
 Trinucleida - Raphiophoridae
Globampyx sp. Fortey 1975 trilobite
Lingulata
 Lingulida - Obolidae
Lingulella sp. Salter 1866
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
"smooth indet. gastropods"
unclassified
  -
Pelmatozoa indet. Leuckart 1848
"round pelmatozoan columnals"
Pterobranchia
 Graptoloidea - Phyllograptidae
Tetragraptus bigsbyi Hall 1865 graptolite
Phyllograptus anna Hall 1865 graptolite
 Graptoloidea - Pterograptidae
"Didymograptus protobifidus" = Didymograptellus protobifidus
"Didymograptus protobifidus" = Didymograptellus protobifidus Elles 1933 graptolite
 Ichnofossils -
Chondrites sp. von Sternberg 1833