Stephanoceras (Ammonite)

Object/Artifact

-

Crater Rock Museum

Name/Title

Stephanoceras (Ammonite)

Entry/Object ID

78.57.170

Description

One tightly coiled, evolute, ammonitic ammonite, of the genus Stephanoceras, showing characteristic ridges, ribbing, and suture pattern. Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Subclass: †Ammonoidea Order: †Ammonitida Family: †Stephanoceratidae Genus: †Stephanoceras Age: Middle Jurassic Location: Inferior Dolite, Bajocian, Thumphriesianum zone, Dorset, England Mineral Data (Calcite?) Crystal System: Hexagonal Fracture: Conchoidal Grain Size: Fine Hardness: 3 Calcite Luster: Vitreous Rock Origin: Terrestrial Rock Type: Sedimentary Streak: white

Collection

Fossil Collection

Acquisition

Accession

78.57

Source or Donor

Delmar Smith Fossil Collection

Acquisition Method

Donation

Dimensions

Width

5-1/2 in

Depth

2-3/4 in

Length

6 in

Location

Location

Shelf

CS-H-4

Room

Curation Storage

Building

Crater Rock Museum

Category

Storage

Moved By

Jillian Mather Kettley

Date

February 3, 2024