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Toronto Nautiloid
Images: 
By JUAN EMMANUEL
Taxonomy
Toronto Nautiloid
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Order: Orthocerida
Family: Proteoceratidae
Genus: Treptoceras
Species: Treptoceras crebiseptum
Author Citation Hall, 1847
Geological Time Scale
Eon: Phanerozoic
Era: Paleozoic
Period: Ordovician
Sub Period: None
Epoch: Late
Stratigraphy
Georgian Bay Formation
Provenance
Date Collected: 08/29/2014
Acquired by: Field Collection
Location
Mimico Creek
Etobicoke, Toronto
Ontario
Canada
Comments
Treptoceras crebiseptum (Hall, 1847).
A nautiloid found in the shale of the Georgian Bay Formation, lower informal member, at a shale wall. Locality is Mimico Creek, Etobicoke, Ontario, Canada. I have included in situ pics to show the process of collecting the specimen. The length of the orthocone is approximately 40 cm which is the size of an adult Treptoceras crebiseptum.
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