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 190795: 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
Echinoidea | |
Cidaris merriami Arnold 1908 pencil urchin | |
Bivalvia | |
"Yoldia gesteri" = Yoldia (Kalayoldia) gesteri
"Yoldia gesteri" = Yoldia (Kalayoldia) gesteri Dickerson 1914 clam | |
"Leda gabbi" = Nuculana (Saccella) gabbii, "Leda alaeformis" = Nuculana (Saccella) alaeformis, "Leda packardi" = Nuculana (Saccella) packardi
"Leda gabbi" = Nuculana (Saccella) gabbii Conrad 1866 pointed nut clam
"Leda alaeformis" = Nuculana (Saccella) alaeformis Gabb 1869 pointed nut clam
"Leda packardi" = Nuculana (Saccella) packardi Dickerson 1914 pointed nut clam | |
Solen sp. Linnaeus 1758 clam | |
? Martesia sp. Sowerby 1824 clam | |
"? Mactra tenuissima" = Mactromeris tenuissima
"? Mactra tenuissima" = Mactromeris tenuissima Gabb 1869 clam | |
Meretrix stantoni, Meretrix dalli, ? Macrocallista packi, "Tapes cf. quadrata" = Pitar quadratus, ? Paphia clarki
Meretrix stantoni Dickerson 1914 venus clam
Meretrix dalli Dickerson 1914 venus clam
? Macrocallista packi Dickerson 1914 venus clam
"Tapes cf. quadrata" = Pitar quadratus Gabb 1864 venus clam
? Paphia clarki Dickerson 1914 venus clam | |
"Tellina packardi" = Tellina (Angulus) packardi, "Tellina kewi" = Tellina (Megangulus) kewi, Tellina perrini, Tellina cf. parilis, "Tellina herndonensis n. sp." = Tellina (Eurytellina) herndonensis
"Tellina packardi" = Tellina (Angulus) packardi Dickerson 1914 tellin clam
"Tellina kewi" = Tellina (Megangulus) kewi Dickerson 1914 tellin clam
Tellina perrini Dickerson 1914 tellin clam
Tellina cf. parilis Gabb 1864 tellin clam
"Tellina herndonensis n. sp." = Tellina (Eurytellina) herndonensis Dickerson 1914 tellin clam | |
"Psammobia hornii" = Gari (Gobraeus) hornii
"Psammobia hornii" = Gari (Gobraeus) hornii Gabb 1864 clam | |
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 | |
Modiolus ornatus Gabb 1864 mussel | |
Glycymerita major Stanton 1896 clam | |
Cucullaea mathewsonii Gabb 1864 clam | |
"Ostrea buwaldana" = Plicatula ostreiformis
"Ostrea buwaldana" = Plicatula ostreiformis Stanton 1896 scallop | |
Scaphopoda | |
Dentalium stramineum Gabb 1864 tusk shell | |
Gastropoda | |
Urosyca caudata, "Urosyca robusta" = Priscoficus robustus
Urosyca caudata Gabb 1869 fig shell
"Urosyca robusta" = Priscoficus robustus Weaver 1905 fig shell | |
Seraphs thompsoni n. sp.
Seraphs thompsoni n. sp. Dickerson 1914 snail | |
"Heteroterma striata" = Pyropsis striata
"Heteroterma striata" = Pyropsis striata Stanton 1896 snail | |
? Siphonalia lineata, "Brachysphingus liratus" = Brachysphingus sinuatus
? Siphonalia lineata Stanton 1896 true whelk
"Brachysphingus liratus" = Brachysphingus sinuatus Gabb 1869 true whelk | |
"Lunatia hornii" = Polinices hornii, "Natica (Gyrodes) lineata" = Lacunaria striata, Amauropsis cf. martinezensis
"Lunatia hornii" = Polinices hornii Gabb 1864 moon snail
"Natica (Gyrodes) lineata" = Lacunaria striata Gabb 1869 moon snail
Amauropsis cf. martinezensis Dickerson 1914 moon snail | |
"Ringinella pinguis" = Ringicula (Ringicula) pinguis
"Ringinella pinguis" = Ringicula (Ringicula) pinguis Gabb 1864 snail | |
Rhynchonellata | |
Terebratulina tejonensis Stanton 1896 | |
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