Dinosaur (egg)

Object/Artifact

-

Crater Rock Museum

Name/Title

Dinosaur (egg)

Entry/Object ID

2011.57.50

Description

Description: Phylum: Chordata Class: Reptilia Family: Unknown Common Name: Dinosaur Egg Age: Cretaceous Location: North/Central Plains, U.S.A. and Canada Description: Elongated rounded shape with fragmentary shell layers covering a dark gray sandstone matrix. Shell fragments are pale yellow to beige with multiple black (porus cavities and holes). Physical Characteristics: Dinosaur eggs are represented today as fossils. They represent the product of egg laying activity and can offer clues as to how dinosaurs behaved.[1] In some cases the embryonic dinosaur is preserved within the eggshell, and can be studied.Dinosaur eggs are known from about 200 sites around the world, the majority in Asia and mostly in terrestrial (nonmarine) rocks of Cretaceous Age. It may be that thick calcite eggshells evolved during the Cretaceous (145 to 66 million years ago). Most dinosaur eggs have one of two forms of eggshell that are distinct from the shells of related modern animal groups, such as turtles or birds. However, some dinosaur eggs closely resemble bird eggs, particularly the type of eggshells in ostrich eggs.[2] Kingdom: Animalia (Animals) Class: Reptilia Phylum: Chordata

Collection

Museum Collection of Fossils

Acquisition

Accession

2011.57

Source or Donor

Museum Collection of Fossils

Acquisition Method

Long-term Loan

Dimensions

Width

2-11/16 in

Depth

2 in

Length

4-1/4 in

Location

Location

Room

Fossil Room

Building

Crater Rock Museum

Category

Exhibit