Hurricane Cliffs Locality HC 5 Bed 7: Spathian, Utah

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Tentaculita - Microconchida
? Microconchus sp. Murchison 1839
16 specimens
Zatoń et al. 2013
Microconchus sp. Murchison 1839
358 specimens
Zatoń et al. 2013
Rhynchonellata - Terebratulida - Gusarellidae
4 specimens
2nd Collection PDT
Gastropoda
4 individuals
Morph B, 2nd Collecion PDT
Gastropoda - Naticopsidae
4 individuals
2nd Collection PDT
2 individuals
2nd Collection
Gastropoda - Coelostylinidae
1 individual
2nd Collection PDT
Bivalvia - Trigoniida - Trigonodidae
Hautmann et al. 2013
Bivalvia - Cardiida - Kalenteridae
18 specimens
(1 measurement)
    = Myoconcha cf. plana Kiparisova 1938
Hautmann et al. 2013
2 specimens
3 specimens
Bivalvia - Myalinida - Myalinidae
1 specimen
Bivalvia - Pectinida - Pectinidae
Pleuronectites sp. Schlotheim 1820
52 specimens
2nd collection
? Pleuronectites sp. Schlotheim 1820
20 specimens
Bivalvia - Pectinida - Hunanopectinidae
5 specimens
2nd coll
5 specimens
Bivalvia - Pectinida - Aviculopectinidae
8 specimens
Hautmann et al. 2013
Bivalvia - Ostreida - Bakevelliidae
Bakevellia sp. King 1848
1 specimen
Right Valves Counted, 2nd Collection PDT
Bakevellia cf. costata (Schlotheim 1820)
20 specimens
    = Bakevellia costata Schlotheim 1820
Hautmann et al. 2013
Cephalopoda - Nautilida - Tainoceratidae
1 individual
2nd Collection PDT
3 individuals
2nd Collection
Crinoidea - Holocrinida - Holocrinidae
1 specimen
2nd Collection PDT
Holocrinus sp. Wachsmuth and Springer 1886
see common names

Geography
Country:United States State/province:Utah County:Washington
Coordinates: 37.1° North, 113.3° West (view map)
Paleocoordinates:21.3° North, 35.2° West (Wright 2013)
Basis of coordinate:unpublished field data
Geographic resolution:small collection
Time
Period: Triassic Epoch: Early Triassic
Stage: Olenekian 10 m.y. bin: Triassic 1
Key time interval: Spathian
Age range of interval: 248.1 - 246.7 m.y. ago
Stratigraphy
Formation:Moenkopi Member:Virgin
Local section:HC 5 Local bed:7
Stratigraphic resolution:bed
Lithology and environment
Primary lithology:burrows lithified marl
Includes fossils?Y
Lithology description: Rubbly nodular marl. Bottom 40cm of bed with horizontal bioturnation (2-3cm long 3-4mm in diameter. Steinkerns of complete bivalves. Bivalve dominated with some microconcids. Some gastropods. Nautiloids at base. Rare Holocrinus unicolumnals.
Environment:carbonate indet.
Taphonomy
Modes of preservation:body,mold/impression
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:paleoecologic analysis
Metadata
Database number:63008
Authorizer:A. McGowan, M. Clapham Enterer:A. McGowan, M. Clapham
Modifier:M. Manojlovic Research group:marine invertebrate
Created:2006-08-02 06:19:10 Last modified:2025-02-22 15:12:02
Access level:the public Released:2006-08-02 06:19:10
Creative Commons license:CC0
Reference information

Primary reference:
18152. 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]

Secondary references:

44069 M. Hautmann, A. B. Smith, A. J. McGowan and H. Bucher. 2013. Bivalves from the Olenekian (Early Triassic) of south-western Utah: systematics and evolutionary significance. Journal of Systematic Palaeontology 11:263-293 [M. Clapham/M. Clapham/M. Clapham]
44346 M. Zatoń, P. D. Taylor, and O. Vinn. 2013. Early Triassic (Spathian) post-extinction microconchids from western Pangea. Journal of Paleontology 87:159-165 [M. Clapham/M. Clapham/M. Clapham]