FHSM VP-2223-4
Ptychodus rugosus (Dixon, 1850)

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Taxonomy

Specimen Info

Kingdom
Animalia
Genus
Ptychodus
Phylum
Chordata
Species
rugosus
Class
Chondrichthyes
Author
Dixon
Order
Year
1850
Family
Ptychodontidae
Collected by
Frye, L.C.
Date Collected
Identified By
Walker, M.V.
Date Identified
1976-08-28
Type
Number of Pieces
1
Description
Skull; Teeth, 1 of 270 teeth dentition

Locality

Lithostratigraphy

Country
United States of America
State/Province
Kansas
County
Trego
Remarks
Information withheld. Please contact FHSM for detailed locality information
Group
Colorado
Formation
Niobrara
Member
Smoky Hill
Zone
Bed
Local Fauna

Chronostratigraphy

Biostratigraphy

Earliest Era
Mesozoic
Latest Era
Mesozoic
Earliest Period
Cretaceous
Latest Period
Cretaceous
Earliest Epoch
Upper
Latest Epoch
Upper
Earliest Age
Santonian
Latest Age
Santonian
Lowest Zone
Highest Zone