Avenal wells in Big Tar Canyon [Avenal Sandstone] (Eocene of the United States)

Also known as USGS 14482

Where: California (35.9° N, 120.1° W: paleocoordinates 38.5° N, 103.0° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Avenal Formation, Ypresian (56.0 - 47.8 Ma)

• AGE: modified to Ypresian and "Avenal Sandstone" following EPICC stratigraphy revision [Hendy, 6/2020].

• formation-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; sandstone

• light-gray sandstone, 300 to 400 feet thick
• 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 167604: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 25.03.2015, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Polychaeta
  -
Spiroglyphus ? sp.
Spiroglyphus ? sp. Daudin 1800
Gastropoda
 Tectibranchia - Akeridae
Akera sp.
Akera sp. Muller 1776 snail
 Opisthobranchia - Retusidae
"Cylichnina sp." = Retusa (Cylichnina)
"Cylichnina sp." = Retusa (Cylichnina) Monterasato 1884 snail
 Opisthobranchia - Cylichnidae
Scaphander sp.
Scaphander sp. Monfort 1810 snail
 Cerithioidea - Turritellidae
Turritella buwaldana, Turritella uvasana
Turritella buwaldana Dickerson 1916 turret shell
Turritella uvasana Conrad 1855 turret shell
 Neotaenioglossa - Calyptraeidae
Calyptraea sp.
Calyptraea sp. Lamarck 1799 slipper shell
 Architaenioglossa - Ampullinidae
Globularia (Eocernina) sp., "Amaurellina clarki" = Pachycrommium clarki
Globularia (Eocernina) sp. Swainson 1840 snail
"Amaurellina clarki" = Pachycrommium clarki Stewart 1927 snail
 Sorbeoconcha - Naticidae
Neverita sp., Euspira sp., Sinum sp.
Neverita sp. Risso 1826 moon snail
Euspira sp. Agassiz 1837 moon snail
Sinum sp. Röding 1798 moon snail
 Neogastropoda - Fasciolariidae
Falsifusus ? sp.
 Neogastropoda - Nassariidae
Molopophorus sp.
Molopophorus sp. Gabb 1869 snail
 Neogastropoda - Buccinidae
Pseudoliva sp.
Pseudoliva sp. Swainson 1840 true whelk
 Neogastropoda - Buccinulidae
Umpquaia sp.
Umpquaia sp. Turner 1938 snail
 Neogastropoda - Cancellariidae
Bonellitia sp.
Bonellitia sp. Jousseaume 1887 snail
 Neogastropoda - Mitridae
Mitra (cf. Mitra) cretacea
Mitra (cf. Mitra) cretacea Gabb 1864 mitre shell
 Neogastropoda - Terebridae
Terebra sp.
Terebra sp. Bruguière 1789 auger snail
 Neogastropoda - Conidae
Moniliopsis sp., Conus sp.
Moniliopsis sp. Conrad 1865 cone shell
Conus sp. Linnaeus 1758 cone shell
 Neogastropoda - Turridae
Pleurofusia sp.
Pleurofusia sp. de Gregorio 1890 turrid
 Neogastropoda - Olivellidae
Agaronia sp.
Agaronia sp. Gray 1839 snail
 Neogastropoda - Volutidae
Lyria sp.
Lyria sp. Gray 1847 volute
 Sorbeoconcha - Strombidae
"Ectinochilus sp." = Rimella, Terebellum sp.
"Ectinochilus sp." = Rimella Agassiz 1840 true conch
Terebellum sp. Röding 1798 true conch
 Sorbeoconcha - Bursidae
Olequahia sp., Ranellina sp.
Olequahia sp. Stewart 1927 frog shell
Ranellina sp. Conrad 1865 frog shell
 Sorbeoconcha - Ranellidae
"Personella sp." = Sassia (Personella)
"Personella sp." = Sassia (Personella) Conrad 1865 triton shell
 Sorbeoconcha - Ficidae
"Ficopsis crescentensis" = Ficopsis remondii crescentensis
"Ficopsis crescentensis" = Ficopsis remondii crescentensis Weaver and Palmer 1922 fig shell
Bivalvia
 Nuculida - Nuculidae
Acila sp.
Acila sp. Adams and Adams 1858 divaricate nutclam
 Mytilida - Mytilidae
Brachidontes sp.
Brachidontes sp. Swainson 1840 mussel
 Arcida - Glycymerididae
"Glycymeris sagittata" = Glycymeris (Glycymerita) sagittata, "Glycymeris perrini" = Glycymeris (Tucetona) perrini
"Glycymeris sagittata" = Glycymeris (Glycymerita) sagittata Gabb 1864 clam
"Glycymeris perrini" = Glycymeris (Tucetona) perrini Dickerson 1916 clam
 Cardiida - Cardiidae
"Plagiocardium (Schedocardia) sp." = Acanthocardia (Schedocardia), Nemocardium sp.
"Plagiocardium (Schedocardia) sp." = Acanthocardia (Schedocardia) Stewart 1930 cockle
Nemocardium sp. Meek 1876 cockle
 Cardiida - Psammobiidae
Gari sp.
Gari sp. Schumacher 1817 clam
 Cardiida - Veneridae
Pitar ? joaquinensis, "Pitar uvasanus" = Pitar uvasana
Pitar ? joaquinensis Vokes 1939 venus clam
"Pitar uvasanus" = Pitar uvasana Conrad 1855 venus clam
 Cardiida - Mactridae
Spisula sp.
Spisula sp. Gray 1837 clam
 Lucinida - Lucinidae
Lucina sp.
Lucina sp. Bruguière 1797 clam
 Carditida - Crassatellidae
Crassatella sp.
Crassatella sp. Lamarck 1799 clam
 Carditida - Carditidae
"Venericardia sandiegoensis" = Glyptoactis (Claibornicardia) sandiegoensis
"Venericardia sandiegoensis" = Glyptoactis (Claibornicardia) sandiegoensis Hanna 1927 clam
Anthozoa
 Scleractinia - Calamophylliidae
? Antilloseris vaughani n. sp.
? Antilloseris vaughani n. sp. Wells 1940 stony coral
 Scleractinia - Fungiidae
Discotrochus californicus n. sp.
Discotrochus californicus n. sp. Wells 1940 stony coral