PBDB Collection

D1990 CO. Meiklejohn mud-mound, Bare Mountain: Whiterockian, Nevada

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Strophomenata - Orthotetida - Triplesiidae

	? Onychoplecia sp. Cooper 1956
Strophomenata - Strophomenida - Taffiidae

	Petroria cf. austrina
Strophomenata - Strophomenida - Plectambonitidae

	Ingria cloudi (Ulrich and Cooper 1936)
Rhynchonellata - Orthida - Archaeorthidae

	? Pleurorthis sp. Cooper 1956
Rhynchonellata - Orthida - Orthidiellidae

	? Orthidiella sp. Ulrich and Cooper 1936

	Orthidium sp. Hall and Clarke 1892
Rhynchonellata - Pentamerida - Camerellidae

	Liricamera sp.
Gastropoda - Murchisoniina - Lophospiridae

	Donaldiella cicelia (Billings 1865)	Wagner 2023
	Smithsonian summer 1991
Gastropoda - Euomphalina - Raphistomatidae

	Ceratopea lemonei (Flower 1968)	Wagner 2023
	Smithsonian summer 1991
Gastropoda - Euomphalina - Ophiletidae

	Malayaspira annulata (Walcott 1884)	Wagner 2023
	Smithsonian summer 1991

	Asgardaspira measuresae (Rohr 1994)	Wagner 2023
	Smithsonian summer 1991
Rostroconchia - Conocardiida - Eopteriidae

	Eopteria sp. Billings 1865
	= Eopteria cf. richardsoni Billings 1865	Pojeta and Runnegar 1976
Cephalopoda

	Cephalopoda indet. Cuvier 1797
Ostracoda

	Ostracoda indet. Latreille 1802
Trilobita - Corynexochida - Illaenidae

	Illaenus sp. Dalman 1827
see common names

Geological group:	Pogonip	Formation:	Antelope Valley
Regional section:	Antelope Valley Formation	Regional bed:	113 ft
Regional order:	bottom to top
Stratigraphic resolution:	bed
Stratigraphy comments: Lower Antelope Valley Limestone, 45 ft above the base of the mud-mound, 113 ft above base of the formation, Orthidiella Zone, Early Whiterockian

Primary lithology:	lithified "limestone"
Environment:	reef, buildup or bioherm
Geology comments: 80 m thick and 300 m wide mud-mound in an outer ramp setting in relatively deep and cold water. Core of the mound with zebra limestone bands and stromatactis structures.

Modes of preservation:	body,replaced with silica
Size of fossils:	macrofossils

Collection methods:	field collection
Reason for describing collection:	taxonomic analysis
Museum repositories:	USGS

10956		J. Pojeta and B. Runnegar. 1976. The paleontology of rostroconch mollusks and the early history of the phylum Mollusca. United States Geological Survey Professional Paper 968:1-88 [P. Wagner/P. Wagner/P. Wagner]
16339		R. R. Shrock and G.O. Raasch. 1937. Paleontology of the disturbed Ordovician rocks near Kentland, Indiana. The American Midland Naturalist 18(4):532-607 [P. Wagner/P. Wagner]
9042		P. J. Wagner. 2023. Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023). [P. Wagner/P. Wagner/P. Wagner]