3-4 miles north of Casa Saman, Chira Valley: Priabonian, Peru

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Tritaria sullana n. sp.
Cephalopoda - Nautilida - Aturiidae
Aturia peruviana (Olsson 1928)
Aturia alabamensis var. peruviana
Gastropoda - Ampullinidae
Ampullina indet. Férussac 1822
Gastropoda - Potamididae
Potamides chira n. sp. Olsson 1931
Gastropoda - Pachychilidae
Faunus (Pseudofaunus) chiraensis n. sp. (Olsson 1931)
Gastropoda - Turritellidae
Turritella chira Olsson 1928
Turritella samanensis Olsson 1928
Turritella gilbertharrisi Hodson 1926
Gastropoda - Naticidae
Polinices (Neverita) quirosana
original and current combination Neverita
Polinices (Neverita) subreclusiana n. sp. Olsson 1931
Polinices (Lunatia) chulucana n. sp. Olsson 1931
Gastropoda - Cypraeidae
Cypraea indet. Linnaeus 1758
Gastropoda - Pediculariidae
Cypraea (Cypraedia) chira n. sp. Olsson 1931
synonym of Cypraedia (Eucypraedia) multicarinata
Cypraea (Cypraedia) chira Olsson 1931
Olsson 1930
synonym of Cypraedia (Eucypraedia) multicarinata
Gastropoda - Ficidae
Ficus chiraensis n. sp. Olsson 1931
Gastropoda - Neogastropoda - Turbinellidae
Xancus peruvianus n. sp. Olsson 1928
Gastropoda - Neogastropoda - Costellariidae
Turricula (Knefastia) chira n. sp. Olsson 1931
Gastropoda - Neogastropoda - Pseudolividae
Pseudoliva parinasensis Woods 1922
recombined as Pseudoliva (Buccinorbis) parinasensis
var. mancorensis
Gastropoda - Neogastropoda - Mitridae
Mitra indet. Lamarck 1798
Gastropoda - Neogastropoda - Fasciolariidae
Clavilithes (Chiralithes) cynosuris
Mancorus grabaui Olsson 1931
Peruficus lagunitensis Olsson 1929
recombined as Glyptostyla lagunitensis
var. charanalensis n. var.
Gastropoda - Neogastropoda - Buccinidae
Metula peruviana n. sp. Olsson 1931
Gastropoda - Neogastropoda - Nassariidae
Tritiaria chira n. sp. Olsson 1931
Gastropoda - Neogastropoda - Volutidae
Chiraluta inca n. sp. Olsson 1931
Lyria peruviana n. sp. Olsson 1931
Peruluta mancorensis (Olsson 1928)
Gastropoda - Neogastropoda - Muricidae
Yasila chiraensis n. sp. Olsson 1931
Gastropoda - Neogastropoda - Harpidae
Morum (Oniscidea) peruviana n. sp.
Morum (Oniscidea) chiraensis n. sp.
Gastropoda - Neogastropoda - Clavatulidae
Turricula (Surcula) sullana n. sp. Olsson 1931
Turricula (Surcula) piura n. sp. Olsson 1931
Gastropoda - Neogastropoda - Turridae
Scobinella meloda n. sp. Olsson 1931
Gastropoda - Neogastropoda - Borsoniidae
Borsonia peruviana n. sp. Olsson 1931
Gastropoda - Thersiteidae
Strombus chiraensis n. sp. Olsson 1931
recombined as Oostrombus chiraensis
Gastropoda - Aporrhaidae
Peruchilus culberti n. sp. Olsson 1931
Gastropoda - Strombidae
Ectinochilus gaudichaudi (d'Orbigny 1842)
Rimella peruviana n. sp. Olsson 1931
Gastropoda - Heterostropha - Mathildidae
Tuba indet. Lea 1823
Gastropoda - Heterostropha - Architectonicidae
Architectonica sullana Olsson 1928
Architectonica chiraensis n. sp. Olsson 1928
Gastropoda - Heterostropha - Acteonidae
Tornatellaea indet. Conrad 1860
Gastropoda - Opisthobranchia - Haminoeidae
Haminea indet. (Turton and Kingston 1830)
original and current combination Haminoea
Gastropoda - Neritidae
Nerita indet. Linnaeus 1758
Bivalvia - Nuculanida - Nuculanidae
Leda indet. Schumacher 1817
synonym of Nuculana
Bivalvia - Cardiida - Veneridae
Pitaria (Lamelliconcha) ayabaca n. sp. Olsson 1931
Pitaria (Pitarella) chiraensis n. sp. Olsson 1931
recombined as Agriopoma (Pitarella) chiraensis
Antigona (Artena) indet. (Conrad 1870)
original and current combination Artena
Clementia peruviana Olsson 1928
recombined as Clementia (Egesta) peruviana
Clementia peruviana Olsson 1928
Olsson 1928
recombined as Clementia (Egesta) peruviana
Bivalvia - Cardiida - Cardiidae
Cardium indet. Linnaeus 1758
Protocardia indet. (Beyrich 1845)
Bivalvia - Lucinida - Lucinidae
Lucina (Lucina) inca n. sp. Olsson 1931
Bivalvia - Carditida - Crassatellidae
Crassatellites neorhynchus Olsson 1931
recombined as Crassatella neorhynchus
Bivalvia - Carditida - Carditidae
Cardita (Carditamera) indet. (Conrad 1838)
original and current combination Carditamera
Venericardia indet. Lamarck 1801
Bivalvia - Pectinida - Spondylidae
Spondylus mimus n. sp. Olsson 1931
Bivalvia - Arcida - Arcidae
Barbatia indet. Gray 1842
Bivalvia - Arcida - Glycymerididae
Glycymeris indet. Da Costa 1778
see common names

Geography
Country:Peru State/province:Piura
Coordinates: 5.2° South, 80.6° West (view map)
Paleocoordinates:7.7° South, 73.5° West
Basis of coordinate:based on nearby landmark
Altitude:24 feet
Geographic resolution:local area
Time
Period:Paleogene Epoch:Eocene
Stage:Priabonian 10 m.y. bin:Cenozoic 3
Key time interval:Priabonian
Age range of interval:37.71000 - 33.90000 m.y. ago
Stratigraphy
Formation:Chira
Stratigraphic resolution:formation
Stratigraphy comments: unclear in pub - may come from the Sal Chica beds within the Chira Fm
upper Eocene according to Higley 2004
Lithology and environment
Primary lithology:black poorly lithified carbonaceous "shale"
Secondary lithology:white ash
Includes fossils?Y
Lithology description: black, bituminous shale on weathering, break down into soft, powdery soil bands of white or yellowish volcanic ash found in many localities associated with thin seams of hard, plastery sandstones
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some microfossils
Collection methods:field collection
Reason for describing collection:general faunal/floral analysis
Collection method comments: not much info given
Metadata
Also known as:Bahovar Fm
Database number:55431
Authorizer:L. Ivany, A. Hendy, P. Wagner Enterer:L. Ivany, A. Hendy, P. Wagner
Modifier:M. Clapham Research group:marine invertebrate
Created:2005-10-22 12:49:12 Last modified:2017-05-23 16:34:15
Access level:the public Released:2005-10-22 12:49:12
Creative Commons license:CC BY
Reference information

Primary reference:
14915. 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]

Secondary references:

18631 D. Higley. 2004. The Talara Basin Province of NW Peru: Cretaceous to Tertiary Total Petroleum System. United States Geological Survey Bulletin 2206(A):1-28 [L. Ivany/L. Ivany]
17609 A. A. Olsson. 1928. Contributions to the Tertiary paleontology of northern Peru: Part 1. Bulletins of American Paleontology 14(52) [A. Miller/A. Hendy]
14126 A. A. Olsson. 1930. Contributions to the Tertiary Paleontology of Northern Peru: Part 3, Eocene Mollusca. Bulletins of American Paleontology 17(62):1-164 [A. Miller/A. Hendy/A. Hendy]