Locality 33A (Beal, 1948) - Salada Fm, Bahia Tortuga, Mexico (Pliocene of Mexico)

Also known as Loc. 33A

Where: Baja California Sur, Mexico (27.7° N, 114.9° W: paleocoordinates 27.5° N, 113.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Salada Formation, Pliocene (5.3 - 2.6 Ma)

• Collected from beds 50 feet below Locality 30, From uppermost beds. Within the Western Cape region, the Salada Formation is represented by only 20 feet of calcareous cross-bedded pebbly sandstone, with abundant casts of fossils, but the formation is probably thicker at other parts of the formation. Posssibly outcrops described as Salada Fm are not all the same age, yet most appear to be Pliocene.

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithified, pebbly, calcareous sandstone

• Siliciclastic facies, shallow water because of sedimentary structures.
• Calcareous cross-bedded pebbly sandstone

Size class: macrofossils

Preservation: cast

Collection methods: quarrying,

• Stated that fossils were collected. No repositories reported. Collected by J.P. Smith

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 43687: authorized by Austin Hendy, entered by Austin Hendy on 22.08.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Short but probably representative, including both cirripeds, bivalves and gastropods
Gastropoda
 Neogastropoda - Nassariidae
"Nassa aff. perpinguis" = Caesia perpinguis
"Nassa aff. perpinguis" = Caesia perpinguis Hinds 1844 snail
 Neogastropoda - Muricidae
Trophon belcheri murex snail
Bivalvia
 Pectinida - Pectinoidae
"Pecten lawsoni" = Chlamys hastata, "Pecten aff. paucicostatus" = Leptopecten tumbezensis
"Pecten lawsoni" = Chlamys hastata Sowerby 1842 scallop
"Pecten aff. paucicostatus" = Leptopecten tumbezensis d'Orbigny 1846 scallop
Listed as "Pecten sp. nov. aff. paucicostatus"
 Ostreida - Ostreidae
"Ostrea palmula" = Saccostrea palmula
"Ostrea palmula" = Saccostrea palmula Carpenter 1857 oyster
Thecostraca
 Balanomorpha - Balanidae
Balanus sp. Da Costa 1778 barnacle