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Accession Number

PEH.331P.A.a

Geological Time Period

Cretaceous

Kingdom

Animalia

Phylum

Mollusca

Class

Cephalopoda

Order

Ammonitida

Family

Placenticeratidae

Genus

Placenticeras sp.

Formation

Bearpaw Shale

Physical Characteristics

Medium sized ammonite that is very smooth and round. The outside is covered with leaf shapes, known as ammonitic sutures.

Description

Rosebud County, Montana

Number of Pieces

1

Measurements (cm.)

15

Ursinus Acquisition Date

9-14-2007

Donor

Dr. E Lee Porter (funds)

Purchased From

Bey’s Rock Shop Boyertown, PA 19512

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