Upper Zorritos (Miocene of Peru)

Where: Peru (3.7° S, 80.7° W: paleocoordinates 4.9° S, 76.4° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Zorritos Formation, Early/Lower Miocene (23.0 - 16.0 Ma)

• upper part of Zorritos Fm.

• member-level stratigraphic resolution

Environment/lithology: coastal; yellow, conglomeratic sandstone

• yellow or orange-colored sandstones and pebble conglomerates

Primary reference: A. A. Olsson. 1932. Contributions to the Tertiary Paleontology of Northern Peru: Part 5, Miocene Mollusca. Bulletins of American Paleontology 19(68):1-272 [A. Miller/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 66178: authorized by Linda Ivany, entered by Linda Ivany on 03.10.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Cerithioidea - Turritellidae
"Turritella infracarinata" = Turritella (Turritella) infracarinata Grzybowski 1899 turret shell
Turritella varicosta Spieker 1922 turret shell
Turritella abrupta Spieker 1922 turret shell
 Neotaenioglossa - Calyptraeidae
Crucibulum inerme slipper shell
 Neogastropoda - Buccinidae
 Neogastropoda - Melongenidae
Melongena melongena Linnaeus 1758 snail
 Neogastropoda - Cancellariidae
Cancellaria sp. Lamarck 1799 snail
 Neogastropoda - Conidae
"Conus (Dendroconus) bravoi" = Conus bravoi, "Conus (Dendroconus) cf. williamgabbi" = Conus williamgabbi
"Conus (Dendroconus) bravoi" = Conus bravoi Spieker 1922 cone shell
"Conus (Dendroconus) cf. williamgabbi" = Conus williamgabbi Maury 1917 cone shell
Bivalvia
 Mytilida - Mytilidae
Mytilus sp. Linnaeus 1758 mussel
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
 Arcida - Arcidae
"Arca (Diluvarca) spiekeri" = Anadara (Scapharca) spiekeri, "Arca (Diluvarca) sechurana" = Anadara (Rasia) sechurana, "Arca (Senilia) chiriquiensis" = Anadara (Grandiarca) chiriquiensis, "Arca (Senilia) zorritosensis" = Senilia
"Arca (Diluvarca) spiekeri" = Anadara (Scapharca) spiekeri Olsson 1932 clam
"Arca (Diluvarca) sechurana" = Anadara (Rasia) sechurana Olsson 1932 ark
"Arca (Senilia) chiriquiensis" = Anadara (Grandiarca) chiriquiensis Gabb 1861 ark
"Arca (Senilia) zorritosensis" = Senilia clam
 Cardiida - Cardiidae
"Cardium (Dinocardium) ecuadorialis" = Dinocardium ecuadoriale
"Cardium (Dinocardium) ecuadorialis" = Dinocardium ecuadoriale Olsson 1932 cockle
 Cardiida - Semelidae
Semele laevis Sowerby 1833 clam
subsp. costaricensis
 Cardiida - Tellinidae
"Tellina (Eurytellina) aequicincta" = Eurytellina aequicincta, Macoma sp.
"Tellina (Eurytellina) aequicincta" = Eurytellina aequicincta Spieker 1922 tellin clam
Macoma sp. Leach 1819 tellin clam
 Cardiida - Veneridae
"Dosinia (Dosinidea) delicatissima" = Dosinia (Dosinia) delicatissima Brown and Pilsbry 1913 venus clam
Chione (Chionopsis) spiekeri Olsson 1932 venus clam
Pitaria (Lamelliconcha) aequicincta Spieker 1922 venus clam
"Clementia dariena" = Clementia (Clementia) dariena Conrad 1855 venus clam
 Cardiida - Mactridae
"Mactrella exoleta" = Mactrellona exoleta
"Mactrella exoleta" = Mactrellona exoleta Garay 1837 clam
 Cardiida - Anatinellidae
"Labiosa (Raeta) undulata" = Raeta undulata
"Labiosa (Raeta) undulata" = Raeta undulata Gould 1851 clam
 Pholadida - Corbulidae
"Corbula (Tenuicorbula) acutirostra" = Tenuicorbula acutirostra
"Corbula (Tenuicorbula) acutirostra" = Tenuicorbula acutirostra Spieker 1922 clam