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Greenland
2
Henryk B
2
Lower Tertiary
2
Midway Group
2
Paleocene
2
Stenzel
2
Texas
2
gastropods
2
pelecypods
Berggren
1
Boggild
1
Cannonball Member
1
Eocene
1
Gilbertina
1
Gilbertina texana
1
Hessland
1
Ringicula dubia
1
Stone City
1
Stone City Beds
1
Treatise on Invertebrate Paleontology
1
publications
1
sandstone
1
shell structure
1
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