UCMP 790 (Paleocene of the United States)

Also known as East of Lower Lake village

Where: Lake County, California (38.9° N, 122.6° W: paleocoordinates 44.8° N, 100.3° W)

• coordinate based on nearby landmark

When: Martinez Formation, Paleocene (66.0 - 56.0 Ma)

• Martinez Fm. discussed as Eocene by Dickerson 1914, but rocks now regarded as Paleocene following Stewart, Ralph, 1949, Lower Tertiary stratigraphy of Mount Diablo, Marysville Buttes, and west border of lower Central Valley of California: U.S. Geological Survey Oil and Gas Investigations Preliminary Chart, OC-34.

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils

Reposited in the UCMP

Primary reference: R. E. Dickerson. 1914. Fauna of the Martinez Eocene of California. Bulletin of the Department of Geology, University of California 6:61-180 [P. Holroyd/P. Holroyd/A. Hendy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 190798: authorized by Patricia Holroyd, entered by Patricia Holroyd on 17.12.2017, edited by Jonathan Marcot and Austin Hendy

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Terebratulida - Cancellothyrididae
Gastropoda
 Neotaenioglossa - Calyptraeidae
"Galerus excentricus" = Calyptraea diegoana
"Galerus excentricus" = Calyptraea diegoana Conrad 1855 slipper shell
 Epitonioidea - Epitoniidae
Acrilla (Undiscala) lolakensis n. sp.1 Durham 1937 wentletrap
 Sorbeoconcha - Ficidae
Urosyca caudata Gabb 1869 fig shell
 Neogastropoda - Buccinidae
Neptunea sp. Röding 1798 true whelk
"Brachysphingus liratus" = Brachysphingus sinuatus Gabb 1869 true whelk
? Siphonalia lineata Stanton 1896 true whelk
 Neogastropoda - Nassariidae
Fusus dumblei n. sp. Dickerson 1914 snail
 Neogastropoda - Tudiclidae
Heteroterma sp. Gabb 1869 snail
 Neogastropoda - Muricidae
"Perissolax tricarnatus" = Pseudoperissolax tricarnatus
"Perissolax tricarnatus" = Pseudoperissolax tricarnatus Weaver 1905 murex snail
 Sorbeoconcha - Ranellidae
? Tritonium buwaldi n. sp. Dickerson 1914 triton
 Sorbeoconcha -
Cypraea bayerquei2 Gabb 1864 snail
 Sorbeoconcha - Seraphsidae
? Seraphs thompsoni Dickerson 1914 snail
 Sorbeoconcha - Naticidae
Natica "sp. e", "Natica (Gyrodes) lineata" = Lacunaria striata, "Lunatia cf. nuciformis" = Polinices (Euspira) nuciformis, "Lunatia hornii" = Polinices hornii, Lunatia "sp. A"
Natica "sp. e" Scopoli 1777 moon snail
"Natica (Gyrodes) lineata" = Lacunaria striata Gabb 1869 moon snail
"Lunatia cf. nuciformis" = Polinices (Euspira) nuciformis Gabb 1864 moon snail
"Lunatia hornii" = Polinices hornii Gabb 1864 moon snail
Lunatia "sp. A" Gray 1847 moon snail
 Opisthobranchia - Cylichnidae
Cylichna sp. Lovén 1846 snail
"Cylichna costata" = Scaphander (Mirascapha) costatus Gabb 1864 snail
 Patellida - Lottiidae
Acmaea martinezensis n. sp. Dickerson 1914 limpet
 Heterostropha - Ringiculidae
"Ringinella pinguis" = Ringicula (Ringicula) pinguis
"Ringinella pinguis" = Ringicula (Ringicula) pinguis Gabb 1864 snail
Bivalvia
 Nuculanida - Nuculanidae
"Leda packardi" = Nuculana (Saccella) packardi, "Leda gabbi" = Nuculana (Saccella) gabbii, "Leda alaeformis" = Nuculana (Saccella) alaeformis
"Leda packardi" = Nuculana (Saccella) packardi Dickerson 1914 pointed nut clam
"Leda gabbi" = Nuculana (Saccella) gabbii Conrad 1866 pointed nut clam
"Leda alaeformis" = Nuculana (Saccella) alaeformis Gabb 1869 pointed nut clam
 Nuculanida - Yoldiidae
"Yoldia gesteri" = Yoldia (Kalayoldia) gesteri
"Yoldia gesteri" = Yoldia (Kalayoldia) gesteri Dickerson 1914 clam
 Mytilida - Mytilidae
Modiolus ornatus Gabb 1864 mussel
 Arcida - Glycymerididae
Glycymerita major3 Stanton 1896 clam
 Arcida - Cucullaeidae
Cucullaea mathewsonii Gabb 1864 clam
 Pectinida - Plicatulidae
"Plicatula ostreiformis" = Plicatula ostreiformis, "Ostrea buwaldana n. sp." = Plicatula ostreiformis
"Plicatula ostreiformis" = Plicatula ostreiformis Stanton 1896 scallop
"Ostrea buwaldana n. sp." = Plicatula ostreiformis Stanton 1896 scallop
genus misspelled as "Ostraea" in occurrence table, correctly spelled in description on p. 127
 Pectinida - Limidae
"Lima multiradiata" = Acesta (Acesta) multiradiata
"Lima multiradiata" = Acesta (Acesta) multiradiata Gabb 1869 file clam
 Pectinida - Pectinoidae
Pectinidae indet. Wilkes 1810 scallop
as "Pecten sp."
 Carditida - Crassatellidae
"Crassatellites ? grandis" = Crassatella uvasana
"Crassatellites ? grandis" = Crassatella uvasana Conrad 1855 clam
 Lucinida - Lucinidae
"Lucina turneri" = Claibornites (Codalucina) turneri Stanton 1896 clam
 Cardiida - Tellinidae
"Tellina packardi" = Tellina (Angulus) packardi Dickerson 1914 tellin clam
Tellina "sp. a" Linnaeus 1758 tellin clam
Tellina cf. parilis Gabb 1864 tellin clam
"? Tellina undulifera" = Tellina (Saulella) undulifera Gabb 1869 tellin clam
"Tellina kewi" = Tellina (Megangulus) kewi Dickerson 1914 tellin clam
 Cardiida - Psammobiidae
"Psammobia hornii" = Gari (Gobraeus) hornii
"Psammobia hornii" = Gari (Gobraeus) hornii Gabb 1864 clam
 Cardiida - Veneridae
? Venus sp. Linnaeus 1758 venus clam
? Paphia clarki Dickerson 1914 venus clam
"Meretrix dalli n. sp." = Pitaria praenominata Hanna 1924 venus clam
Meretrix stantoni Dickerson 1914 venus clam
 Cardiida - Mactridae
"? Mactra tenuissima" = Mactromeris tenuissima
"? Mactra tenuissima" = Mactromeris tenuissima Gabb 1869 clam
 Solenida - Solenidae
Solen sp. Linnaeus 1758 clam
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758 tusk shell
Dentalium stramineum Gabb 1864 tusk shell
Dentalium cooperi Gabb 1864 tusk shell
Gnathostomata
  -
Chondrichthyes indet. Huxley 1880 cartilaginous fish
shark tooth