FHSM IP-1903
Helisoma trivolvis

Taxonomy

Specimen Info

Kingdom
Animalia
Genus
Helisoma
Phylum
Mollusca
Species
trivolvis
Class
Gastropoda
Author
Order
Hygrophila
Year
Family
Planorbidae
Collected by
Zehr
Date Collected
1974-05 to 1974-09
Identified By
Kolb, K.K.
Date Identified
Type
Number of Pieces
4
Description
Body; Shell,

Locality

Lithostratigraphy

Country
United States of America
State/Province
Marl Center (E side) of Big (N) roadcut
County
Remarks
Information withheld. Please contact FHSM for detailed locality information
Group
Ogallala
Formation
Ogallala
Member
Zone
Bed
Local Fauna

Chronostratigraphy

Biostratigraphy

Earliest Era
Cenozoic
Latest Era
Cenozoic
Earliest Period
Neogene
Latest Period
Neogene
Earliest Epoch
Pliocene
Latest Epoch
Pliocene
Earliest Age
Latest Age
Lowest Zone
Highest Zone