Quebrada Charanal [Mirador Sandstone, Mancora Fm] (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: Mirador Conglomerate Member (Mancora Formation), Early/Lower Oligocene (33.9 - 28.4 Ma)

• lower Mirador sandstones

•basal Oligocene according to Higley 2004

• formation-level stratigraphic resolution

Environment/lithology: marine; poorly lithified, coarse-grained, black conglomerate and poorly lithified sandstone

• Erratic masses of fossiliferous sandstones in a conglomeratic zone interbedded amongst softer sandstone and sandy shales.

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 55441: authorized by Linda Ivany, entered by Linda Ivany on 23.10.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

• abundant fish remains, large whale vertebrae, fossil wood are also present
Show authors, comments, and common names
unclassified
  -
Mancora burtti
Gastropoda
 Heterostropha - Architectonicidae
Architectonica sullana
Architectonica sullana Olsson 1928 sundial
 Opisthobranchia - Haminoeidae
"Haminea indet." = Haminoea
"Haminea indet." = Haminoea Turton and Kingston 1830 snail
 Neritoidea - Neritidae
Nerita indet.
Nerita indet. Linnaeus 1758 snail
 Sorbeoconcha - Naticidae
"Polinices (Neverita) quirosana" = Neverita
"Polinices (Neverita) quirosana" = Neverita moon snail
 Neogastropoda - Clavatulidae
Surcula ? mayi
Surcula ? mayi Hanna and Israelsky 1925 snail
 Neogastropoda - Conidae
"Conus chiraensis" = Conus sauridens chiraensis
"Conus chiraensis" = Conus sauridens chiraensis Olsson 1930 cone shell
 Neogastropoda - Turridae
Polystira indet.
Polystira indet. Woodring 1928 turrid
 Neogastropoda - Fasciolariidae
Mancorus grabaui n. sp.
Mancorus grabaui n. sp. Olsson 1931 snail
 Neogastropoda - Melongenidae
Melongena charanalensis n. sp.
Melongena charanalensis n. sp. Olsson 1931 snail
 Neogastropoda - Pseudolividae
"Pseudoliva parinasensis" = Pseudoliva (Buccinorbis) parinasensis
"Pseudoliva parinasensis" = Pseudoliva (Buccinorbis) parinasensis Woods 1922 snail
P. parinaensis var. mancorensis
 Neogastropoda -
Chiralithes cynosuris n. sp.
 Neogastropoda - Volutidae
Peruluta mancorensis
Peruluta mancorensis Olsson 1928 volute
 Neogastropoda - Harpidae
Morum (Herculea) charanalensis n. sp.
 Neogastropoda - Olividae
Olivella (Lamprodoma) illesca n. sp.
Olivella (Lamprodoma) illesca n. sp. Olsson 1931 olive snail
 Neogastropoda - Cancellariidae
Cancellaria indet.
Cancellaria indet. Lamarck 1799 snail
 Sorbeoconcha - Cassidae
Morum (Oniscidea) dolioides n. sp.
Morum (Oniscidea) dolioides n. sp. Olsson 1931 snail
 Cerithioidea - Turritellidae
Turritella indet., Turritella hubbardi, Turritella galvesia n. sp.
Turritella indet. Lamarck 1799 turret shell
Turritella hubbardi Hodson 1926 turret shell
Turritella galvesia n. sp. Olsson 1931 turret shell
 Cerithioidea - Potamididae
Lagunitus lagunitensis
Lagunitus lagunitensis horn snail
L. lagunitensis var. charanalensis, n. var.
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium indet.
Dentalium indet. Linnaeus 1758 tusk shell
Bivalvia
 Nuculanida - Nuculanidae
Leda (Saccella) charanica n. sp., Leda (Saccella) miradorana n. sp.
Leda (Saccella) charanica n. sp. Olsson 1931 pointed nut clam
Leda (Saccella) miradorana n. sp. Olsson 1931 pointed nut clam
 Nuculida - Nuculidae
Nucula indet.
Nucula indet. Lamarck 1799 nut clam
 Lucinida - Lucinidae
"Phacoides (Miltha) woodi n. sp." = Eomiltha woodi, Codakia (Jagonia) peruviana n. sp.
"Phacoides (Miltha) woodi n. sp." = Eomiltha woodi Olsson 1930 clam
Codakia (Jagonia) peruviana n. sp. Olsson 1931 clam
 Poromyida - Verticordiidae
Verticordia indet.
Verticordia indet. Sowerby 1844 clam
 Pholadida - Corbulidae
Corbula indet.
Corbula indet. Bruguière 1789 clam
 Cardiida - Solecurtidae
Tagelus indet.
Tagelus indet. Gray 1847 clam
 Cardiida - Veneridae
"Clementia peruviana" = Clementia (Egesta) peruviana, Pitaria (Lamelliconcha) charanica n. sp.
"Clementia peruviana" = Clementia (Egesta) peruviana Olsson 1928 venus clam
Pitaria (Lamelliconcha) charanica n. sp. Olsson 1931 venus clam
 Cardiida - Chamidae
Chama indet.
Chama indet. Linnaeus 1758 jewel box
 Cardiida - Mactridae
Spisula (Oxyperas) steinmanni n. sp.
Spisula (Oxyperas) steinmanni n. sp. Olsson 1931 clam
 Carditida - Carditidae
"Venericardia charanalensis n. sp." = Venericardia (Glyptoactis) charanalensis
"Venericardia charanalensis n. sp." = Venericardia (Glyptoactis) charanalensis Olsson 1931 clam