Also known as Loc. 13
Where: Baja California Sur, Mexico (31.6° N, 115.8° W: paleocoordinates 31.8° N, 102.6° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Tepetate Formation, Middle Eocene (47.8 - 37.7 Ma)
• Collected from the upper of two horizons. Paleocene and Eocene series are named the Tepetate Formation in Baja California. The strata probably underlie a large part of the region covered by latter rocks, the uppermost beds lapping over the edges of the older formations and lying on the granite of the main range. Determined to be middle Eocene (upper Martinez faunal similarities) by Gardner.
• bed-level stratigraphic resolution
Environment/lithology: deltaic; fine-grained, yellow siltstone and sandstone
Size class: macrofossils
Collection methods: quarrying,
• Collected by Darton. Collection studied and determined by J. Gardner. No known repository.
Primary reference: C. H. Beal. 1948. Reconnaissance of the geology and oil possibilities of Baja California, Mexico. Geological Society of America Memoir 31 [A. Miller/A. Hendy/A. Hendy]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 43758: authorized by Austin Hendy, entered by Austin Hendy on 25.08.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
"Leda sp." = Nuculana
"Leda sp." = Nuculana Link 1807 pointed nut clam | |
"Glycymeris aff. veatchii major" = Glycymerita major
"Glycymeris aff. veatchii major" = Glycymerita major Stanton 1896 clam Listed as "Glycymeris n. sp. aff. veatchii var. major"
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Ostrea sp. Linnaeus 1758 oyster | |
Pinna sp. Linnaeus 1758 oyster | |
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Cytherea aff. hornii venus clam | |
"Cardium cooperii" = Nemocardium (Nemocardium) linteum
"Cardium cooperii" = Nemocardium (Nemocardium) linteum Conrad 1855 cockle | |
"Phacoides cf. diegoensis" = Claibornites (Claibornites) diegoensis, Phacoides sp.
"Phacoides cf. diegoensis" = Claibornites (Claibornites) diegoensis Dickerson 1916 clam
Phacoides sp. Blainville 1825 clam | |
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"Crassatellites sp." = Crassatella
"Crassatellites sp." = Crassatella Lamarck 1799 clam | |
Scaphopoda | |
Dentalium cooperi Gabb 1864 tusk shell | |
Gastropoda | |
"Natica (Gyrodes) cf. lineata" = Lacunaria striata, Amauropsis sp.
"Natica (Gyrodes) cf. lineata" = Lacunaria striata Gabb 1869 moon snail
Amauropsis sp. Mörch 1857 moon snail | |
"Heteroterma gabbi" = Pyropsis gabbi
"Heteroterma gabbi" = Pyropsis gabbi Stanton 1896 snail | |
"Surcula sp." = Turricula
"Surcula sp." = Turricula Schumacher 1817 snail | |
Turritella sp. Lamarck 1799 turret shell
Turritella pachecoensis Stanton 1896 turret shell |