Clam Shells

Object/Artifact

-

Crater Rock Museum

Name/Title

Clam Shells

Entry/Object ID

78.57.53

Description

Crystal System: Hexagonal System Description: Phylum: Mollusca Class Bivalvia Sub-Class: ? Common Name: Clam Age: undetermined Location: Charleston, Oregon Description: One gastropod in sandstone concretion. Physical Characteristics: Bivalvia, commonly called the bivalves, is a taxonomic class of marine and freshwater molluscs that have a laterally compressed body enclosed by a shell in two hinged parts. This class includes the clams, oysters, mussels, scallops and numerous other families. The majority are filter feeders and have no head or radula. The gills have been modified into ctenidia, specialised organs for feeding and breathing. The majority of bivalves are infaunal and bury themselves in sediment on the seabed. Others are epifaunal and attach themselves to hard surfaces. A few bore into wood, clay or rock and live inside these substances. Some bivalves, such as the scallops, can swim. Fracture: Conchoidal Grain Size: Fine Hardness: 3 Calcite Kingdom: Animalia (Animals) Luster: Vitreous Class: Bivalvia Phylum: Mollusca 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

1-3/4 in

Length

2-3/4 in

Location

Location

Container

Center

Drawer

Top Shelf

Shelf

Right

Cabinet

Case # 2

Wall

West

Room

Fossil Room

Building

Crater Rock Museum

Category

Permanent