UCMP 784 (Paleocene of the United States)

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

• Paleocoordinates: 49.1° N, 89.8° W (Wright 2013)

• 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 190795: authorized by Patricia Holroyd, entered by Patricia Holroyd on 17.12.2017, edited by Jonathan Marcot and Austin Hendy

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Echinoidea
 Cidaroida - Cidaridae
Cidaris merriami
Cidaris merriami Arnold 1908 pencil urchin
Rhynchonellata
 Rhynchonellida - Rhynchonellidae
? Rhynchonella sp.
? Rhynchonella sp. Fischer 1809
misspelled as "Rhynconella"
 Terebratulida - Cancellothyrididae
Terebratulina tejonensis
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium stramineum
Dentalium stramineum Gabb 1864 tusk shell
Bivalvia
 Arcida - Cucullaeidae
Cucullaea mathewsonii
Cucullaea mathewsonii Gabb 1864 clam
 Arcida - Glycymerididae
Glycymerita major
Glycymerita major Stanton 1896 clam
 Pectinida - Plicatulidae
"Ostrea buwaldana" = Plicatula ostreiformis
"Ostrea buwaldana" = Plicatula ostreiformis Stanton 1896 scallop
 Mytilida - Mytilidae
Modiolus ornatus
Modiolus ornatus Gabb 1864 mussel
 Lucinida - Lucinidae
Lucina sp., "Phacoides quadrata n. sp." = Lucina (Lucina) quadrata, "Lucina turneri" = Claibornites (Codalucina) turneri
Lucina sp. Bruguière 1797 clam
"Phacoides quadrata n. sp." = Lucina (Lucina) quadrata Dickerson 1914 clam
"Lucina turneri" = Claibornites (Codalucina) turneri Stanton 1896 clam
 Solenida - Solenidae
Solen sp.
Solen sp. Linnaeus 1758 clam
 Cardiida - Psammobiidae
"Psammobia hornii" = Gari (Gobraeus) hornii
"Psammobia hornii" = Gari (Gobraeus) hornii Gabb 1864 clam
 Cardiida - Tellinidae
"Tellina packardi" = Tellina (Angulus) packardi, Tellina cf. parilis, Tellina perrini, "Tellina kewi" = Tellina (Megangulus) kewi, "Tellina herndonensis n. sp." = Tellina (Eurytellina) herndonensis
"Tellina packardi" = Tellina (Angulus) packardi Dickerson 1914 tellin clam
Tellina cf. parilis Gabb 1864 tellin clam
Tellina perrini Dickerson 1914 tellin clam
"Tellina kewi" = Tellina (Megangulus) kewi Dickerson 1914 tellin clam
"Tellina herndonensis n. sp." = Tellina (Eurytellina) herndonensis Dickerson 1914 tellin clam
 Cardiida - Mactridae
"? Mactra tenuissima" = Mactromeris tenuissima
"? Mactra tenuissima" = Mactromeris tenuissima Gabb 1869 clam
 Cardiida - Veneridae
"Tapes cf. quadrata" = Pitar quadratus, Meretrix stantoni, ? Paphia clarki, ? Macrocallista packi, "Meretrix dalli" = Pitaria praenominata
"Tapes cf. quadrata" = Pitar quadratus Gabb 1864 venus clam
Meretrix stantoni Dickerson 1914 venus clam
? Paphia clarki Dickerson 1914 venus clam
? Macrocallista packi Dickerson 1914 venus clam
"Meretrix dalli" = Pitaria praenominata Hanna 1924 venus clam
 Pholadida - Pholadidae
? Martesia sp.
? Martesia sp. Sowerby 1824 clam
 Nuculanida - Nuculanidae
"Leda gabbi" = Nuculana (Saccella) gabbii, "Leda packardi" = Nuculana (Saccella) packardi, "Leda alaeformis" = Nuculana (Saccella) alaeformis
"Leda gabbi" = Nuculana (Saccella) gabbii Conrad 1866 pointed nut clam
"Leda packardi" = Nuculana (Saccella) packardi Dickerson 1914 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
Gastropoda
 Heterostropha - Ringiculidae
"Ringinella pinguis" = Ringicula (Ringicula) pinguis
"Ringinella pinguis" = Ringicula (Ringicula) pinguis Gabb 1864 snail
 Sorbeoconcha - Seraphsidae
Seraphs thompsoni n. sp.
Seraphs thompsoni n. sp. Dickerson 1914 snail
 Neogastropoda - Buccinidae
"Brachysphingus liratus" = Brachysphingus sinuatus, ? Siphonalia lineata
"Brachysphingus liratus" = Brachysphingus sinuatus Gabb 1869 true whelk
? Siphonalia lineata Stanton 1896 true whelk
 Neogastropoda - Pyropsidae
"Heteroterma striata" = Pyropsis striata
"Heteroterma striata" = Pyropsis striata Stanton 1896 snail
 Sorbeoconcha - Ficidae
Urosyca caudata, "Urosyca robusta" = Priscoficus robustus
Urosyca caudata Gabb 1869 fig shell
"Urosyca robusta" = Priscoficus robustus Weaver 1905 fig shell
 Sorbeoconcha - Naticidae
"Lunatia hornii" = Polinices hornii, Amauropsis cf. martinezensis, "Natica (Gyrodes) lineata" = Lacunaria striata
"Lunatia hornii" = Polinices hornii Gabb 1864 moon snail
Amauropsis cf. martinezensis Dickerson 1914 moon snail
"Natica (Gyrodes) lineata" = Lacunaria striata Gabb 1869 moon snail