Elephant Canyon Formation, Moab, Unit 8 (Carboniferous of the United States)

Where: Grand County, Utah (38.5° N, 109.7° W: paleocoordinates 4.0° N, 36.8° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Elephant Canyon Formation, Gzhelian (303.7 - 298.9 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; shelly/skeletal, gray, sandy packstone and shelly/skeletal, gray, argillaceous wackestone

• "Carbonate deposition over a submerged delta lobe"
• 8a, Limestone, sandy biosparite: medium to dark gray; very fossiliferous.

•8b, Limestone, argillaceous biomicrite; medium to dark gray; very fossiliferous.

Size class: macrofossils

Preservation: cast, mold/impression, original calcite

Collection methods: surface (float), surface (in situ),

Primary reference: F. M. Terrell. 1972. Lateral facies and paleoecology of Permian Elephant Canyon Formation, Grand County, Utah. Brigham Young University Geology Studies 19(2):3-44 [D. Bottjer/M. Clapham/M. Clapham]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 39917: authorized by David Bottjer, entered by Matthew Clapham on 12.06.2004, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• Gastropod(?) and Wilkingia burrows present in 8a and 8b; "flaring spreite structures" present in 8b
Show authors, comments, and common names
Strophomenata
 Orthotetida - Derbyiidae
Derbyia crassa
Derbyia crassa Meek and Hayden 1858
 Productida - Linoproductidae
Linoproductus ? planiventralis, Linoproductus prattenianus, "Linoproductus magnispinus" = Linipalus magnispinus
Linoproductus ? planiventralis Hoare 1960
Written Linoproductus planiventralis (?)
Linoproductus prattenianus Norwood and Pratten 1855
"Linoproductus magnispinus" = Linipalus magnispinus Dunbar and Condra 1932
 Productida -
Marginifera sp.
Marginifera sp. Waagen 1884
 Productida - Echinoconchidae
"Juresania nebrascensis" = Parajuresania nebrascensis
"Juresania nebrascensis" = Parajuresania nebrascensis Owen 1852
 Strophomenida - Rugosochonetidae
"Chonetes granulifer" = Neochonetes granulifer
"Chonetes granulifer" = Neochonetes granulifer Owen 1852
 Strophomenida - Anopliidae
"Chonetina" sp.
"Chonetina" sp. Krotow 1888
Rhynchonellata
 Spiriferida - Ambocoeliidae
"Ambocoelia ? expansa" = Crurithyris expansa
"Ambocoelia ? expansa" = Crurithyris expansa Dunbar and Condra 1932
Written Ambocoelia expansa (?)
 Spiriferida - Trigonotretidae
Neospirifer sp., Neospirifer "sp. A"
Neospirifer sp. Fredericks 1919
Neospirifer "sp. A" Fredericks 1919
 Athyridida - Athyrididae
Composita ? trilobata, Composita subtilita, Composita ? ovata
Composita ? trilobata
Written Composita trilobata (?)
Composita ? ovata Mather 1915
Written Composita ovata (?)
Stenolaemata
 Trepostomida - Stenoporidae
Stenopora "sp. A", Tabulipora "sp. A"
Stenopora "sp. A" Lonsdale 1844
 Cryptostomata - Acanthocladiidae
Polypora sp.
 Cryptostomata - Fenestellidae
? Fenestella sp.
? Fenestella sp. Lonsdale 1839
Gastropoda
 Bellerophontida - Bellerophontidae
Bellerophontidae sp., Pharkidonotus sp.
Bellerophontidae sp. M'Coy 1851 snail
Pharkidonotus sp. Girty 1912 snail
 Euomphalina - Anomphalidae
Anomphalidae sp.
Anomphalidae sp. Wenz 1938 snail
 Euomphalina - Euomphalidae
Euomphalidae sp.
Euomphalidae sp. White 1877 snail
 Murchisoniina - Eotomariidae
Euconospira sp.
Euconospira sp. Ulrich and Scofield 1897 snail
 Murchisoniina - Phymatopleuridae
? Worthenia sp.
? Worthenia sp. de Koninck 1883 snail
 Murchisoniina - Soleniscidae
Ianthinopsis sp.
Ianthinopsis sp. Meek and Worthen 1866 snail
 Murchisoniina - Loxonematidae
Loxonematidae sp.
Loxonematidae sp. Koken 1889 snail
Bivalvia
 Pholadomyida - Edmondiidae
Edmondia sp.
Edmondia sp. de Koninck 1841 clam
 Cardiidia - Sanguinolitidae
Wilkingia "sp. A", Wilkingia "sp. B"
Wilkingia "sp. A" Wilson 1959 clam
Large sp.
Wilkingia "sp. B" Wilson 1959 clam
Small sp.
 Trigoniida - Schizodidae
? Schizodus sp.
? Schizodus sp. King 1844 clam
Written Schizodon in faunal list; correct elsewhere
 Ostreida - Pinnidae
"Pinna" sp.
"Pinna" sp. Linnaeus 1758 oyster
 Ostreida - Pterineidae
Pteronites sp.
Pteronites sp. McCoy 1842 oyster
 Pectinida - Limipectinidae
? Acanthopecten sp.
? Acanthopecten sp. Girty 1903 scallop
 Pectinida - Pseudomonotidae
? Pseudomonotis sp.
? Pseudomonotis sp. von Beyrich 1862 scallop
 Pectinida - Limidae
"Limatula" sp.
"Limatula" sp. Wood 1839 file clam
 Myalinida - Myalinidae
Myalina "sp. A", Septimyalina sp.
Myalina "sp. A" de Koninck 1842 clam
Septimyalina sp. Newell 1942 clam
 Arcida - Parallelodontidae
Parallelodon sp.
Parallelodon sp. Meek and Worthen 1866 clam
unclassified
  -
Arthropoda indet.
Arthropoda indet. Latreille 1829
Trilobita
 Proetida - Phillipsiidae
Ditomopyge sp., ? Ameura sp.
Ditomopyge sp. Newell 1931 trilobite
? Ameura sp. Weller 1936 trilobite
Foraminifera
 Fusulinoidea - Schwagerinidae
Triticites sp.