Hurricane Cliffs Locality HC 3 Bed 7/8 (Triassic of the United States)

Where: Washington County, Utah (37.0° N, 113.3° W: paleocoordinates 7.8° N, 39.2° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Virgin Member (Moenkopi Formation), Spathian (251.3 - 247.2 Ma)

• bed-level stratigraphic resolution

Environment/lithology: lithified, calcareous sandstone

• Shelly calc-arenite. Top surface with large siltstone clasts. Rinks, terebratulids, crinoid columnals, gastropods. See photo PDT and notes AJM

Size class: macrofossils

Preservation: mold/impression

Primary reference: A. J. McGowan, A. B. Smith, and P. D. Taylor. 2009. Faunal diversity, heterogeneity and body size in the Early Triassic: testing post-extinction paradigms in the Virgin Limestone of Utah, USA. Australian Journal of Earth Sciences 56:859-872 [A. McGowan/A. McGowan/M. Clapham]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 63143: authorized by Alistair McGowan, entered by Alistair McGowan on 08.08.2006, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Tentaculita
 Microconchida -
Microconchus utahensis2
Microconchus utahensis2 Zatoń et al. 2013
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail
 Neritoidea - Naticopsidae
"Naticopsis depresispirus" = Abrekopsis depresispirus
"Naticopsis depresispirus" = Abrekopsis depresispirus Batten and Stokes 1986 snail
 Trochoidea - Colloniidae
? Chartronella sp.
? Chartronella sp. Cossman 1902 snail
Bivalvia
  -
Bivalvia indet.
Bivalvia indet. Linnaeus 1758 clam
Left Valves Counted, 2nd Collection [originally entered as "Bivalvia sp."]
 Ostreida - Bakevelliidae
Bakevellia costata1
Bakevellia costata1 Schlotheim 1820 oyster
Right Hand Valves Counted
 Pectinida - Aviculopectinidae
Eumorphotis virginensis1
Eumorphotis virginensis1 Hautmann et al. 2013 scallop
Left Hand Valves Counted
 Pectinida - Hunanopectinidae
Leptochondria sp.
Leptochondria sp. Bittner 1891 scallop
 Pectinida - Pectinoidae
Chlamys sp.
Chlamys sp. Röding 1798 scallop
Right Valves Counted
Rhynchonellata
 Rhynchonellida - Norellidae
Piarorhynchella triassica
 Terebratulida - Gusarellidae
Protogusarella smithi
Protogusarella smithi Perry and Chatterton 1979
Chondrichthyes
 Eugeneodontiformes - Caseodontidae
Caseodontidae indet.
Caseodontidae indet. Zangerl 1981 chimaera
Crinoidea
 Holocrinida - Holocrinidae
Holocrinus ? dubius, Holocrinus sp.
Holocrinus sp. Wachsmuth and Springer 1886 Sea lily
1Hautmann et al. 2013; 2Zatoń et al. 2013