Near Lobitos (School of Engineering, Lima collection): Bartonian, Peru

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Nautilida - Hercoglossidae
(1 measurement)
see common names

Geography
Country:Peru
Coordinates: 4.5° South, 81.3° West (view map)
Paleocoordinates:4.3° South, 69.2° West (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Paleogene Epoch: Eocene
Stage: Bartonian 10 m.y. bin: Cenozoic 3
Key time interval: Bartonian
Age range of interval: 41.03 - 37.71 m.y. ago
Stratigraphy
Formation:Talara
Stratigraphic resolution:bed
Stratigraphy comments: "Presumably from the Talara formation. Olsson (1928, p. 96) has stated that this species is 'strictly limited' to one 'horizon' and is 'quite common' in it; and Frizzell has recently written us that it occurs 'in the lower part of the Talara formation in beds that ... [are] near the top of the middle Eocene.' Furthermore the lithology and preservation of the specimen, which are very distinctive, are precisely like those of conspecific individuals near Lobitos."
Lithology and environment
Primary lithology:brown lithified "limestone"
Lithology description: Mottled light brown limestone
Environment:carbonate indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Collection method comments: Repository: School of Engineering, Lima
Metadata
Database number:180401
Authorizer:M. Clapham Enterer:M. Clapham
Research group:marine invertebrate
Created:2016-07-15 22:09:33 Last modified:2025-02-22 15:12:02
Access level:the public Released:2016-07-15 22:09:33
Creative Commons license:CC0
Reference information

Primary reference:
59868. A. K. Miller and H. R. Downs. 1950. Tertiary nautiloids of the Americas: supplement. Journal of Paleontology 24:1-18 [M. Clapham/M. Clapham]