PBDB Collection

USGS Loc. 11307-CO, Horse Heaven Mountain [Windfall Fm] ( of the United States)

Also known as Sample 6-18-76I

Where: Eureka County, Nevada (39.2° N, 116.3° W: paleocoordinates 4.3° S, 85.2° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Cordylodus angulatus conodont zone, Windfall Formation, Tremadoc (486.5 - 477.7 Ma)

• STRATIGRAPHIC RELATIONS: From the Windfall Formation. AGE: Early Tremadoc, on the basis of conodont biostratigraphy. STRATIGRAPHIC POSITION: From upper Windfall Fm, 241 ft below the top of the formation.

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified, fine-grained, silty limestone

• ENVIRONMENT: Outermost shelf or slope facies.

• SPECIFIC LITHOLOGY: Fine-grained to silty limestone. LITHIFICATION: Lithified, on the basis of facies description and sample preparation.

Size class: macrofossils

Reposited in the USNM

• COLLECTOR: J. E. Repetski. REPOSITORY: USNM.

Primary reference: H. W. Kozur, H. Mostler, and J. E. Repetski. 1996. Well-preserved Tremadocian primitive Radiolaria from the Windfall Formation of the Antelope Range, Eureka County, Nevada, USA. Geol Paläont Mitt Innsbruck 21:245-271 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90927: authorized by Austin Hendy, entered by Austin Hendy on 26.08.2009, edited by Uta Merkel

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for radiolarians and condonts. NOMENCATURE: Authoritative publication, with modern nomenclature, and species-resolution identifications.

Show authors, comments, and common names

Hexactinellida
-	? Kometia sp.¹, Australispongia compressa n. sp.¹ ? Kometia sp.¹ Webby and Trotter 1993 glass sponge Australispongia compressa n. sp.¹ Kozur et al. 1996 glass sponge
Heteractinida
-	Heteractinida indet. Heteractinida indet. Hinde 1888
Octactinellida - Astraeospongiidae	Contignatiospongia nevadensis n. gen. n. sp.² Contignatiospongia nevadensis n. gen. n. sp.² Kozur et al. 2008
Conodonta
Prioniodontida - Oistodontidae	? Rossodus tenuis ? Rossodus tenuis Miller 1980 conodont
Protopanderodontida - Drepanoistodontidae	Laurentoscandodus triangularis, Paltodus sp. Laurentoscandodus triangularis Furnish 1938 conodont Paltodus sp. Pander 1856 conodont
Proconodontida - Cordylodontidae	Iapetognathus sprakersi, Cordylodus lindstomi, Cordylodus proavus, Cordylodus intermedius, Cordylodus angulatus Iapetognathus sprakersi conodont Cordylodus lindstomi conodont Cordylodus proavus Müller 1959 conodont Cordylodus intermedius Furnish 1938 conodont Cordylodus angulatus Pander 1856 conodont
Protozoa
Archaeospicularia - Protoentactiniidae	? Protoentactinia "sp. A", Protoentactinia "sp. B", Protoentactinia "sp. C", Noblella tremadociensis n. sp., Protoentactinia latospinosa n. sp., Protoentactinia minuta n. sp., Protoentactinia gracilispinosa n. sp. ? Protoentactinia "sp. A" Kozur et al. 1996 radiolarian Protoentactinia "sp. B" Kozur et al. 1996 radiolarian Protoentactinia "sp. C" Kozur et al. 1996 radiolarian Noblella tremadociensis n. sp. Kozur et al. 1996 radiolarian Protoentactinia latospinosa n. sp. Kozur et al. 1996 radiolarian Protoentactinia minuta n. sp. Kozur et al. 1996 radiolarian Protoentactinia gracilispinosa n. sp. Kozur et al. 1996 radiolarian
Archaeospicularia - Echidninidae	Parechidnina nevadensis n. sp., Echidnina bengtsoni n. sp. Parechidnina nevadensis n. sp. Kozur et al. 1996 radiolarian Echidnina bengtsoni n. sp. Kozur et al. 1996 radiolarian

¹Kozur et al. 1996; ²Kozur et al. 2008