Where: Contra Costa County, California (37.8° N, 121.9° W)
• Paleocoordinates: 44.0° N, 101.1° W (Wright 2013)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Tejon Group, Bartonian (41.3 - 38.0 Ma)
• lower Tejon
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithology not reported
Size class: macrofossils
Primary reference: R. E. Dickerson. 1916. Stratigraphy and fauna of the Tejon Eocene of California. University of California Publications Bulletin of the Department of Geology 9(17):363-524 [J. Marcot/J. Marcot]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 122295: authorized by Wolfgang Kiessling, entered by Uta Merkel on 21.12.2011, edited by Mark Uhen and Jonathan Marcot
Creative Commons license: CC0 (CC0)
Taxonomic list
| Gastropoda | |
"Cylichna costata" = Scaphander (Mirascapha) costatus
"Cylichna costata" = Scaphander (Mirascapha) costatus Gabb 1864 snail | |
"Amauropsis alveata" = Amaurellina moragai
"Amauropsis alveata" = Amaurellina moragai Stewart 1927 moon snail | |
"Ancilla (Oliverato) californica" = Cryptochorda (Cryptochorda) californica
"Ancilla (Oliverato) californica" = Cryptochorda (Cryptochorda) californica Cooper 1894 volute | |
"Fusinus martinez" = Whitneyella martinez
"Fusinus martinez" = Whitneyella martinez Gabb 1864 snail | |
|
Strepsidura howardi Dickerson 1916 true whelk | |
"Pseudoliva volutaeformis" = Calorebama volutaeformis
"Pseudoliva volutaeformis" = Calorebama volutaeformis Gabb 1864 snail | |
|
| |
|
| |
|
Acmaea sp. Eschscholtz 1830 limpet | |
"Actaeon sp." = Acteon
"Actaeon sp." = Acteon Montfort 1810 snail | |
| Scaphopoda | |
|
Dentalium stramineum Gabb 1864 tusk shell | |
"Cadulus pusillus" = Cadulus (Platyschides) gabbi
"Cadulus pusillus" = Cadulus (Platyschides) gabbi Sharp and Pilsbry 1898 tusk shell | |
| Bivalvia | |
"Leda gabbi" = Nuculana (Saccella) gabbii2
| |
|
Yoldia sp. Möller 1842 clam | |
"Placunanomia inornata" = Anomia inornata
"Placunanomia inornata" = Anomia inornata Gabb 1864 jingle | |
"Glycimeris sagittatus" = Glycymeris (Glycymerita) sagittata
"Glycimeris sagittatus" = Glycymeris (Glycymerita) sagittata Gabb 1864 clam | |
|
Modiolus ornatus Gabb 1864 mussel | |
"Lucina gyrata" = Gibbolucina (Eomiltha) gyrata
"Lucina gyrata" = Gibbolucina (Eomiltha) gyrata Gabb 1864 clam | |
"Dosinia elevata" = Cyclinella elevata, "Meretrix ovalis" = Cyclinella elevata, "Meretrix hornii" = Callista (Costacallista) hornii2, "Macrocallista conradiana" = Microcallista (Costacallista) conradiana, "Meretrix tejonensis" = Pitar uvasana
"Dosinia elevata" = Cyclinella elevata Gabb 1864 venus clam
"Meretrix ovalis" = Cyclinella elevata Gabb 1864 venus clam
"Macrocallista conradiana" = Microcallista (Costacallista) conradiana Gabb 1864 venus clam
"Meretrix tejonensis" = Pitar uvasana Conrad 1855 venus clam | |
"Spisula merriami" = Mactromeris merriami
"Spisula merriami" = Mactromeris merriami Packard 1916 clam | |
"Psammobia hornii" = Gari (Gobraeus) hornii
"Psammobia hornii" = Gari (Gobraeus) hornii Gabb 1864 clam | |
|
"Tellina longa" = Tellina (Angulus) longa Gabb 1864 tellin clam | |
|
Pholadidea sp. Turton 1819 clam | |
"Corbula hornii" = Caryocorbula hornii
"Corbula hornii" = Caryocorbula hornii Gabb 1864 clam | |
"Venericardia planicosta hornii" = Venericardia (Pacificor) hornii2
| |
| Echinoidea | |
|
| |
| Anthozoa | |
Thamnasteria sinuata n. sp.2
| |
Turbinolia pusillanima n. sp.2
| |