Also known as Loc. 17
Where: Baja California Sur, Mexico (24.2° N, 110.11° W: paleocoordinates 24.3° N, 98.1° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Tepetate Formation, Middle Eocene (47.8 - 37.7 Ma)
• 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. Considered based on fauna to be Middle Eocene age
• group of beds-level stratigraphic resolution
Environment/lithology: deltaic; fine-grained, yellow siltstone and sandstone
Size class: macrofossils
Collection methods: quarrying,
• Collected by Smith. Collection studied and determined by J. Gardner, and C.W. Cooke (USGS). 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 43753: authorized by Austin Hendy, entered by Austin Hendy on 25.08.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
| |
Echinoidea | |
Schizaster sp. Agassiz 1835 heart urchin | |
Gastropoda | |
"Amauropsis cf. oviformis" = Ampullina oviformis
"Amauropsis cf. oviformis" = Ampullina oviformis Gabb 1864 snail | |
"Amauropsis cf. perovata" = Crommium perovatum, Natica cf. dumblei
"Amauropsis cf. perovata" = Crommium perovatum Conrad 1846 moon snail
Natica cf. dumblei moon snail | |
"? Tritonium sp." = Charonia
"? Tritonium sp." = Charonia Gistel 1848 triton | |
Oliva sp. Bruguière 1789 olive snail | |
Volutilithes sp. Swainson 1829 volute | |
Trophon sp. Montfort 1810 murex snail | |
"Neritina grandis" = Velates vokesi
"Neritina grandis" = Velates vokesi Cooke 1946 snail | |
Bivalvia | |
Venericardia vaughani, "Venericardia cf. rotunda" = Venericardia (Rotundicardia) rotunda
"Venericardia cf. rotunda" = Venericardia (Rotundicardia) rotunda Lea 1833 clam | |
Mytilus sp. Linnaeus 1758 mussel | |
Spondylus sp. Linnaeus 1758 scallop | |
"Crenostrea sp." = Pycnodonte (Crenostrea)
"Crenostrea sp." = Pycnodonte (Crenostrea) Marwick 1931 oyster | |
Avicula sp. Bruguière 1791 clam | |
Euspatangus | |
| |
Orthophragmina | |
Orthophragmina sp. Munier-Chalmas 1891 |