AMNH301, Bed 56b, Rasuvilca Hills section 9, Pajege Canyon: Asselian - Sakmarian, Peru

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Crinoidea
Crinoidea indet. Miller 1821
Stems and rare plates
Gastropoda - Murchisoniina - Trochonematidae
Trochonematidae indet. von Zittel 1895
Rare category
Gastropoda - Murchisoniina - Eotomariidae
Euconospira sp. Ulrich and Scofield 1897
Rare category
Gastropoda - Pseudozygopleuridae
Pseudozygopleura spp.
Common category
Gastropoda - Goniasmatidae
Goniasma informal sp. 1 Tomlin 1930
Common category
(4 measurements)
Gastropoda - Euomphalina - Anomphalidae
Anomphalus sp. Meek and Worthen 1866
Rare category
Bivalvia - Pholadomyida - Edmondiidae
Edmondia sp. de Koninck 1841
Rare category
Bivalvia - Myalinida - Myalinidae
Septimyalina cf. burmai Newell 1942
Rare category
Rhynchonellata - Spiriferinida - Reticulariinidae
Reticulariina constricta Chronic 1949
Rare category
(1 measurement)
Rhynchonellata - Orthida - Enteletidae
Enteletes gibbosus n. sp. Chronic 1949
Abundant category
(13 measurements)
Rhynchonellata - Athyridida - Athyrididae
Composita subtilita (Hall 1852)
Abundant category
n. ssp. peruviana (31 measurements)
Cleiothyridina intonsa Chronic 1949
Rare category
(3 measurements)
Rhynchonellata - Terebratulida - Dielasmatidae
Dielasma scitulum Chronic 1949
Common category
see common names

Geography
Country:Peru State/province:Ayacucho
Coordinates: 12.8° South, 74.2° West (view map)
Paleocoordinates:26.7° South, 50.6° 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:9, Huanta Local bed:56b
Local order:bottom to top
Stratigraphic resolution:group of beds
Stratigraphy comments: 45 feet thick, fusilines and Omphalotrochus at 30 ft, brachiopods at 35 ft (56b?).
Lithology and environment
Primary lithology:shelly/skeletal lithified "limestone"
Includes fossils?Y
Lithology description: Limestone, even-bedded.
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:41376
Authorizer:D. Bottjer Enterer:M. Clapham
Modifier:M. Clapham Research group:marine invertebrate
Created:2004-07-13 16:47:59 Last modified:2017-05-23 16:34:15
Access level:the public Released:2004-07-13 16:47:59
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]