AMNH298, Bed 41, Pasaje-Picchu Section 8: Asselian - Sakmarian, Peru

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Crinoidea
Crinoidea indet. Miller 1821
Stems and rare plates
Stenolaemata - Cryptostomata - Fenestellidae
Fenestrellina huascatayana n. sp. Chronic 1949
Rare category
recombined as Fabifenestella huascatayana
Fenestrellina picchuensis n. sp. Chronic 1949
Common category
recombined as Alternifenestella picchuensis
Cervella n. gen. cervoidea Chronic 1949
Rare category
recombined as Alternifenestella cervoidea
Stenolaemata - Cryptostomata - Septoporidae
Silvaseptopora n. gen. incaica Chronic 1949
Abundant category
recombined as Septopora incaica
Stenolaemata - Cryptostomata - Acanthocladiidae
Polypora spissa n. sp. Chronic 1949
Abundant category
Polypora andina Chronic 1949
Abundant category
Rhynchonellata - Spiriferida - Ambocoeliidae
Crurithyris planoconvexa (Shumard 1855)
Rare category
(4 measurements)
Rhynchonellata - Spiriferida - Trigonotretidae
Neospirifer condor (d'Orbigny 1842)
Common category
recombined as Gypospirifer condor
(4 measurements)
Rhynchonellata - Athyridida - Neoretziidae
Hustedia meridionalis Chronic 1949
Abundant category
(29 measurements)
Rhynchonellata - Athyridida - Athyrididae
Composita subtilita (Hall 1852)
Abundant category
n. ssp. peruviana (32 measurements)
Rhynchonellata - Terebratulida - Dielasmatidae
Dielasma scitulum Chronic 1949
Common category
(4 measurements)
Rhynchonellata - Spiriferinida - Punctospiriferidae
Punctospirifer patulus n. sp. Chronic 1949
Abundant category
(17 measurements)
Rhynchonellata - Spiriferinida - Reticulariinidae
Reticulariina atava n. sp. Chronic 1949
Abundant category
(26 measurements)
Rhynchonellata - Rhynchonellida - Wellerellidae
Wellerella osagensis (Shumard and Swallow 1858)
Common category
n. ssp. peruviana (27 measurements)
Strophomenata - Productida - Echinoconchidae
Juresania hispida n. sp. Chronic 1949
Common category
(1 measurement)
Waagenoconcha humboldti (d'Orbigny 1842)
Rare category
Strophomenata - Orthotetida - Derbyiidae
Derbyia buchi (d'Orbigny 1842)
Common category
(3 measurements)
Bivalvia - Pectinida - Heteropectinidae
Aviculopecten crassispinosus Chronic 1949
Rare category
recombined as Cassianoides crassispinosus
Bivalvia - Nuculida - Nuculidae
Palaeonucula cf. levatiformis (Walcott 1884)
Rare category
recombined as Nuculavus levatiformis
Gastropoda - Murchisoniina - Gosseletinidae
Peruvispira n. gen. delicata Chronic 1949
Rare category
(5 measurements)
see common names

Geography
Country:Peru State/province:Apurimac
Coordinates: 13.6° South, 73.1° West (view map)
Paleocoordinates:27.7° South, 50.5° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Permian Epoch:Cisuralian
Key time interval:Asselian - Sakmarian
Age range of interval:298.90000 - 290.10000 m.y. ago
Stratigraphy
Geological group:Copacabana
Local section:8, Pasaje-Picchu Local bed:41
Local order:bottom to top
Stratigraphic resolution:group of beds
Stratigraphy comments: 50 feet thick.
Lithology and environment
Primary lithology:shelly/skeletal,gray lithified "limestone"
Includes fossils?Y
Lithology description: Limestone, massive, gray, weathers rough.
Environment:marine indet.
Taphonomy
Modes of preservation:body,replaced with silica
Size of fossils:macrofossils
Collection methods and comments
Collection methods:bulk,chemical,field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:41357
Authorizer:D. Bottjer Enterer:M. Clapham
Modifier:M. Clapham Research group:marine invertebrate
Created:2004-07-13 16:46:55 Last modified:2017-05-23 16:34:15
Access level:the public Released:2004-07-13 16:46:55
Creative Commons license:CC BY
Reference information

Primary reference:
11104. N. D. Newell, J. Chronic, and T.G. Roberts. 1953. Upper Paleozoic of Peru. Geological Society of America Memoir 58:1-276 [D. Bottjer/M. Clapham/P. Wagner]