Little Tar Canyon, locality 90 (Cretaceous of the United States)

Where: California (35.9° N, 120.1° W: paleocoordinates 35.5° N, 80.8° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Panoche Formation (Great Valley Group), Early/Lower Cenomanian (99.6 - 93.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; siltstone and sandstone

• Silt, sand and conglomerate

Size classes: macrofossils, mesofossils, microfossils

Primary reference: R. B. Stewart. 1946. Geology of Reef Ridge Coalinga district California. United States Geological Survey Professional Paper 205C:81-115 [W. Kiessling/M. Krause/J. Marcot]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 167599: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 25.03.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium (Dentalium) cf. nanaimoense
Cephalopoda
 Ammonitida - Baculitidae
Baculites cf. chicoensis
Baculites cf. chicoensis Trask 1856 ammonite
Gastropoda
 Sorbeoconcha - Acteoninidae
? Acteonina columnaris
 Heterostropha - Ringiculidae
"Oligoptycha (Oligoptycha) cf. obliqua" = Biplica obliqua
"Oligoptycha (Oligoptycha) cf. obliqua" = Biplica obliqua Gabb 1864 snail
 Trochoidea - Solariellidae
Solariella (Solariella) cf. occidentalis
 Trochoidea - Turbinidae
"? Margarites inornatus" = Atira inornata
"? Margarites inornatus" = Atira inornata Gabb 1864 snail
 Vetigastropoda - Discohelicidae
? Discohelix leana
? Discohelix leana Gabb 1864 snail
 Opisthobranchia - Retusidae
"? Cylichnina sp." = Retusa (Cylichnina)
"? Cylichnina sp." = Retusa (Cylichnina) Monterasato 1884 snail
Bivalvia
 Nuculanida - Nuculanidae
"? Lembulus ? translucidus" = Leda (Lembulus)
"? Lembulus ? translucidus" = Leda (Lembulus) pointed nut clam
 Nuculanida - Yoldiidae
? Yoldia diminutiva, ? Yoldia nasuta
? Yoldia nasuta Gabb 1864 clam
 Pandorida - Laternulidae
? Periplomya sp.
? Periplomya sp. Conrad 1870 clam
 Pholadida - Corbulidae
Corbula sp., ? Corbula sp., Corbula (Corbula) cf. cancellifera
Corbula sp. Bruguière 1789 clam
? Corbula sp. Bruguière 1789 clam
 Cardiida - Veneridae
? Callista subtrigona
 Cardiida - Mactridae
"Cymbophora (Cymbophora) cf. tenuissima" = Mactromeris tenuissima
"Cymbophora (Cymbophora) cf. tenuissima" = Mactromeris tenuissima Gabb 1869 clam
 Cardiida - Kelliidae
Rhectomyax (Rhectomyax) cf. undulatus
 Carditida - Carditidae
"? Cardita veneriformis" = Centrocardita veneriformis
"? Cardita veneriformis" = Centrocardita veneriformis Gabb 1864 clam
 Ostreida - Ostreidae
Ostrea sp.
Ostrea sp. Linnaeus 1758 oyster
 Arcida - Parallelodontidae
"Parallelodon (Parallelodon) brewerianus" = Nanonavis breweriana
"Parallelodon (Parallelodon) brewerianus" = Nanonavis breweriana Gabb 1864 clam
 Arcida - Glycymerididae
? Glycymeris sp.
? Glycymeris sp. Da Costa 1778 clam