Punta Bravo Grits at Cerro Verde - Upper Quebrada Canoas (Oligocene of Peru)

Where: Piura, Peru (5.2° S, 80.6° W: paleocoordinates 7.5° S, 74.3° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Mancora Formation, Early/Lower Oligocene (33.9 - 28.4 Ma)

• top of unit is more marine (below is mostly non-marine)

•basal Oligocene according to Higley 2004

Environment/lithology: marine; coarse-grained, white sandstone and coarse-grained conglomerate

• no specific description given for this site, but should be similar to Punto Bravo grits elsewhere

Primary reference: A. A. Olsson. 1931. Contributions to the Tertiary Paleontology of Northern Peru: Part 4, The Peruvian Oligocene. Bulletins of American Paleontology 17(63) [L. Ivany/L. Ivany]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 55437: authorized by Linda Ivany, entered by Linda Ivany on 23.10.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Cerithiacea - Melaniidae
 Cerithioidea - Thiaridae
Hemisinus terebriformis n. sp. Olsson 1931 snail
 Architaenioglossa - Ampullinidae
Ampullinopsis spenceri Cooke 1919 snail
Bivalvia
 Mytilida - Mytilidae
Mytilus canoasenis n. sp. mussel
 Cardiida - Veneridae
Callista (Costacallista) canoasensis n. sp. Olsson 1931 venus clam
Pitaria (Lamelliconcha) wolfi n. sp. Olsson 1931 venus clam
 Cardiida - Mactridae
"Mactrella tumbezia n. sp." = Mactrellona tumbezia
"Mactrella tumbezia n. sp." = Mactrellona tumbezia Olsson 1921 clam
 Cardiida - Solecurtidae
Tagelus indet. Gray 1847 clam
 Cardiida - Donacidae
Donax petersoni n. sp. Olsson 1931 clam
 Cardiida - Tellinidae
Angulus indet. Megerle 1811 tellin clam
 Nuculanida - Nuculanidae
"Leda (Adrana) indet." = Adrana
"Leda (Adrana) indet." = Adrana Adams and Adams 1858 pointed nut clam