UCMP A1297 (Eocene of the United States)

Where: Solano County, California (38.5° N, 122.0° W: paleocoordinates 40.1° N, 107.5° W)

• coordinate stated in text

When: Markley Formation, Middle Eocene (48.6 - 37.2 Ma)

Environment/lithology: marine; sandstone

Size classes: macrofossils, mesofossils

Reposited in the UCMP

Primary reference: B. L. Clark. 1938. Fauna from the Markley Formation (Upper Eocene) on Pleasant Creek, California . Bulletin of the Geological Society of America 49:683-730 [P. Holroyd/P. Holroyd]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 191188: authorized by Patricia Holroyd, entered by Patricia Holroyd on 14.01.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Arcida - Glycymerididae
 Ostreida - Ostreidae
Ostrea "n. sp." Linnaeus 1758 oyster
 Carditida - Crassatellidae
Crassatellites weaveri n. sp. Clark 1938 clam
 Carditida - Carditidae
Venericardia cf. clarki Weaver and Palmer 1922 clam
 Pholadida - Corbulidae
Corbula dickersoni Weaver and Palmer 1922 clam
 Cardiida - Corbiculidae
Corbicula arnoldi n. sp. Clark 1938 clam
Corbicula oldroydi n. sp. Clark 1938 clam
 Cardiida - Mesodesmatidae
Myadesma eocenica n. sp. Clark 1938 clam
 Cardiida - Mactridae
Mactra markleyensis n. sp. Clark 1938 clam
 Lucinida - Lucinidae
Lucina hannai n. sp. Clark 1938 clam
 Protobranchia - Yoldiidae
Yoldia markleyensis n. sp. Clark 1938 clam
Gastropoda
 Neogastropoda - Perissityidae
 Neogastropoda - Buccinidae
Pseudoliva kirbyi n. sp. Clark 1938 true whelk
Pseudoliva markleyensis n. sp. Clark 1938 true whelk
Cantharus californicus n. sp. true whelk
Cantharus suturalis n. sp. Clark 1938 true whelk
Siphonalia bicarinata Clark 1938 true whelk
 Neogastropoda - Nassariidae
Molopophorus crooki n. sp. Clark 1938 snail
 Neogastropoda - Melongenidae
"Ficopsis cowlitzensis" = Hemifusus cowlitzensis
"Ficopsis cowlitzensis" = Hemifusus cowlitzensis Weaver 1912 snail
 Neogastropoda - Fasciolariidae
Latirus kirbyi n. sp. Clark 1938 snail
Perse markleyensis n. sp. Clark 1938 snail
Perse tuberculatum n. sp. Clark 1938 snail
 Neogastropoda - Tudiclidae
Pseudoperissolax blakei Conrad 1855 snail
 Neogastropoda - Muricidae
Urosalpinx kirbyi n. sp. Clark 1938 murex snail
 Neogastropoda - Turridae
 Neogastropoda - Conidae
Conus aegilops cone shell
 Naticoidea - Naticidae
Sinum obliquum Gabb 1864 moon snail
Polinices hotsoni Weaver and K. V. W 1922 moon snail
Polinices clementensis Hanna 1927 moon snail
Polinices nuciformis Gabb 1864 moon snail
Neverita secta Gabb 1864 moon snail
 Calyptraeoidea - Trichotropidae
"Crepidula pileum" = Spirocrypta pileum
"Crepidula pileum" = Spirocrypta pileum Gabb 1864 snail
 Tonnoidea - Ranellidae
Gyrineum kewi triton shell
 Sorbeoconcha - Thiaridae
Thiara calafi n. sp. Clark 1938 snail
Thiara markleyensis n. sp. Clark 1938 snail
 Sorbeoconcha - Turritellidae
Turritella uvasana Conrad 1865 turret shell
Turritella buwaldana Dickerson 1916 turret shell
 Sorbeoconcha - Brachytrematidae
Benoistia californica n. sp. Clark 1938 snail
 Neritoidea - Neritidae
Nerita crooki n. sp. snail
Nerita "n. sp." Linnaeus 1758 snail
Elimia
  -
? Elimia "n. sp." Adams and Adams 1858
Elimia dickersoni n. sp. Clark 1938
Elimia schencki n. sp. Clark 1938