Lost Burro Gap (Devonian of the United States)

Where: Inyo County, California (36.7° N, 117.5° W: paleocoordinates 18.4° S, 56.9° W)

When: Cyrtospirifer brachiopod zone, Quartz Spring Sandstone Member (Lost Burro Formation), Late/Upper Devonian (382.7 - 358.9 Ma)

• The specimens were obtained from thin- bedded cherty limestone and calcareous to dolomitic sandstone in the upper 20 feet of the Quartz Spring Sandstone Member of the Lost Burro Formation. This member constitutes the Cyrtospirifer Zone of MacAllister (1952) and a late Upper Devonian age has been indicated by studies of invertebrate fossils (Langenheim and Tischler, 1960) and conodonts (Youngquist and Heinrich, 1966) . This age can now be corroborated on the basis of the presently noted vertebrate fossils.

Environment/lithology: marine; cherty/siliceous limestone and dolomitic, calcareous sandstone

Size class: macrofossils

Collected by N. G. Lane

Primary reference: D. H. Dunkle and N. G. Lane. 1971. Devonian fishes from California. Kirtlandia 15:1-5 [J. Marcot/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 206454: authorized by Jonathan Marcot, entered by Jonathan Marcot on 15.11.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Cladodontida -
Cladodontida indet. Obruchev 1967 elasmobranch
 Cochliodontiformes -
Cochliodontiformes indet. Obruchev 1953 chimaera
Osteichthyes
 Arthrodira - Dunkleosteidae
Dunkleosteus sp. Newberry 1874 armour-plated fish