Lower Zoritos Fm - Quebrada La Cruz (Miocene of Peru)

Where: Peru (3.8° S, 80.5° W)

• Paleocoordinates: 2.8° S, 74.8° W (Wright 2013)

• coordinate estimated from map

• local area-level geographic resolution

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

• Lower Zorritos fauna principally known from transitional beds at the base of the Zorritos sandstones

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, yellow, calcareous sandstone

• "The matrix in which most of the specimens so far collected occur is far too resistant to permit the extraction by any known means of specimens at all susceptible to injury through moderate violence; the sands are

•firmly cemented by calcium carbonate, and attempts at removal of matrix by loosening it through chemical destruction of the cement fail because the shell material is of the same composition, and is destroyed along with the matrix" (Spieker 1922)

Collection methods: surface (in situ)

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 66141: authorized by Linda Ivany, entered by Linda Ivany on 30.09.2006, edited by Austin Hendy

Creative Commons license: CC0 (CC0)

Taxonomic list

• molluscs only
Show authors, comments, and common names
Gastropoda
 Sorbeoconcha - Personidae
Distorsio decussatus ringens
 Heterostropha - Architectonicidae
Architectonica sexlinearis corusca
 Sorbeoconcha - Cypraeidae
"Cypraea angustirima" = Muracypraea angustirima
"Cypraea angustirima" = Muracypraea angustirima Spieker 1922 cowry
 Sorbeoconcha - Ficidae
Pyrula peruviana
Pyrula peruviana Spieker 1922 fig shell
 Neogastropoda - Drilliidae
"Turricula (Pleurofusia) cruziana" = Cruziturricula cruziana
"Turricula (Pleurofusia) cruziana" = Cruziturricula cruziana Olsson 1932 snail
 Neogastropoda - Turridae
Polystira sp.
Polystira sp. Woodring 1928 turrid
 Neogastropoda - Terebridae
"Terebra (Strioterebrum) zapotalensis" = Strioterebrum, "Terebra (Strioterebrum) ulloa" = Strioterebrum ulloa, "Terebra (Strioterebrum) herviderana" = Strioterebrum gausapatum, "Terebra (Strioterebrum) pavonia" = Strioterebrum gausapatum
"Terebra (Strioterebrum) zapotalensis" = Strioterebrum auger snail
"Terebra (Strioterebrum) ulloa" = Strioterebrum ulloa Olsson 1932 auger snail
"Terebra (Strioterebrum) herviderana" = Strioterebrum gausapatum Brown and Pilsbry 1911 auger snail
"Terebra (Strioterebrum) pavonia" = Strioterebrum gausapatum Brown and Pilsbry 1911 auger snail
 Neogastropoda - Conidae
"Conus (Leptoconus) sophus" = Conus imitator sophus, "Conus (Dendroconus) bravoi" = Conus bravoi, "Conus (Leptoconus) sp." = Leptoconus, "Conus (Leptoconus) multiliratus spiekeri" = Conus multiliratus spiekeri
"Conus (Leptoconus) sophus" = Conus imitator sophus Olsson 1932 cone shell
"Conus (Dendroconus) bravoi" = Conus bravoi Spieker 1922 cone shell
"Conus (Leptoconus) sp." = Leptoconus Swainson 1840 cone shell
"Conus (Leptoconus) multiliratus spiekeri" = Conus multiliratus spiekeri Olsson 1932 cone shell
 Neogastropoda - Melongenidae
"Melongena melongena consors" = Melongena consors
"Melongena melongena consors" = Melongena consors Sowerby 1850 snail
 Neogastropoda - Fasciolariidae
Pseudolatirus tumbezensis
 Neogastropoda - Nassariidae
"Tritiaria peruviana" = Nassarius (Tritiaria), "Tritiaria cieza" = Nassarius (Tritiaria)
"Tritiaria peruviana" = Nassarius (Tritiaria) snail
"Tritiaria cieza" = Nassarius (Tritiaria) snail
 Neogastropoda - Columbellidae
"Strombina (Strombina) tumbezia" = Sincola (Sinaxila) tumbezia
"Strombina (Strombina) tumbezia" = Sincola (Sinaxila) tumbezia Olsson 1932 dove shell
 Neogastropoda - Buccinidae
Phos (Antillophos) woodringi, Phos latirugatus, "Phos (? Antillophos) hodsoni" = Cymatophos hodsoni
Phos (Antillophos) woodringi Addicott 1970 true whelk
Phos latirugatus Spieker 1922 true whelk
"Phos (? Antillophos) hodsoni" = Cymatophos hodsoni Olsson 1932 true whelk
 Neogastropoda - Olividae
"Olivancillaria (Agaronia) dotapaxi" = Agaronia, "Olivella (Callinanax) tapira" = Olivella (Niteoliva) tapira
"Olivancillaria (Agaronia) dotapaxi" = Agaronia olive snail
"Olivella (Callinanax) tapira" = Olivella (Niteoliva) tapira Olsson 1932 olive snail
 Neogastropoda - Thaisidae
Acanthina (Chorus) sula cruziana
 Neogastropoda - Cancellariidae
"Cancellaria (Aphera) peruana" = Aphera peruana, Cancellaria (Cancellaria) sp.
"Cancellaria (Aphera) peruana" = Aphera peruana Nelson 1870 snail
Cancellaria (Cancellaria) sp. Lamarck 1799 snail
 Sorbeoconcha - Naticidae
"Natica (Naticarius) sp." = Naticarius, "Polinices (Neverita) quirosana" = Neverita, Sinum carolanum
"Natica (Naticarius) sp." = Naticarius Dumeril 1806 moon snail
"Polinices (Neverita) quirosana" = Neverita moon snail
Sinum carolanum Spieker 1922 moon snail
 Cerithioidea - Turritellidae
Turritella fica, Turritella prenuncia
Turritella fica Olsson 1932 turret shell
Turritella prenuncia Spieker 1922 turret shell
Bivalvia
 Pholadida - Corbulidae
"Corbula (Hexacorbula) cruziana" = Bothrocorbula (Hexacorbula) cruziana, Corbula prenuncia, "Corbula (Caryocorbula) bravoana" = Tenuicorbula bravoana, Corbula (Caryocorbula) fabiformis
"Corbula (Hexacorbula) cruziana" = Bothrocorbula (Hexacorbula) cruziana Olsson 1932 clam
"Corbula (Caryocorbula) bravoana" = Tenuicorbula bravoana Spieker 1922 clam
 Cardiida - Veneridae
Macrocallista helenae, "Clementia dariena" = Clementia (Clementia) dariena, "Dosinia (Dosinidea) delicatissima" = Dosinia (Dosinia) delicatissima, "Chione (Lirophora) cf. hendersoni" = Lirophora, Chione (Chionopsis) propinqua, Transennella herviderana, "Pitaria (Lamelliconcha) petersoni" = Lamelliconcha, "Pitaria (Pitaria) sapotana" = Pitar (Pitar) sapotanus
"Clementia dariena" = Clementia (Clementia) dariena Conrad 1855 venus clam
"Dosinia (Dosinidea) delicatissima" = Dosinia (Dosinia) delicatissima Brown and Pilsbry 1913 venus clam
"Chione (Lirophora) cf. hendersoni" = Lirophora venus clam
Chione (Chionopsis) propinqua Spieker 1922 venus clam
"Pitaria (Lamelliconcha) petersoni" = Lamelliconcha venus clam
"Pitaria (Pitaria) sapotana" = Pitar (Pitar) sapotanus Olsson 1932 venus clam
 Cardiida - Cardiidae
"Cardium (Trigoniocardium) hannai" = Trigoniocardia (Trigoniocardia) hannai, "Cardium (Trachycardium) zorritense" = Trachycardium
"Cardium (Trigoniocardium) hannai" = Trigoniocardia (Trigoniocardia) hannai Olsson 1932 cockle
"Cardium (Trachycardium) zorritense" = Trachycardium cockle
 Cardiida - Tellinidae
"Macoma zapotalensis" = Psammacoma zapotalensis, "Tellina (Eurytellina) aequicincta" = Eurytellina aequicincta
"Macoma zapotalensis" = Psammacoma zapotalensis Spieker 1922 tellin clam
"Tellina (Eurytellina) aequicincta" = Eurytellina aequicincta Spieker 1922 tellin clam
 Lucinida - Lucinidae
Phacoides insleyi, Codakia sp.
Codakia sp. Scopoli 1777 clam
 Carditida - Crassatellidae
Eucrassatella berryi
Eucrassatella berryi Spieker 1922 clam
 Arcida - Arcidae
"Arca (Diluvarca) fissicosta" = Anadara (Rasia) fissicosta, "Arca (Diluvarca) zapotalensis" = Anadara (Diluvarca), "Arca (Diluvarca) singewaldi" = Anadara (Diluvarca), "Arca (Cunearca) thalia" = Anadara (Cunearca), "Arca (Diluvarca) spiekeri" = Anadara (Scapharca) spiekeri, Arca (Diluvarca) vanholsti
"Arca (Diluvarca) fissicosta" = Anadara (Rasia) fissicosta Spieker 1922 ark
"Arca (Diluvarca) zapotalensis" = Anadara (Diluvarca) ark
"Arca (Diluvarca) singewaldi" = Anadara (Diluvarca) ark
"Arca (Cunearca) thalia" = Anadara (Cunearca) ark
"Arca (Diluvarca) spiekeri" = Anadara (Scapharca) spiekeri Olsson 1932 clam
Arca (Diluvarca) vanholsti Spieker 1922 ark
 Arcida - Noetiidae
"Arca (Noetia) retractata" = Noetia
"Arca (Noetia) retractata" = Noetia clam