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Orthoidea

2 books found

Brachiopod genera of the suborders Orthoidea and Pentameroidea
Brachiopod genera of the suborders Orthoidea and Pentameroid...

by Charles Schuchert

1932 2 ed.
Middle Devonian Orthoidea of the Holy Cross Mountains and their ontogeny
Middle Devonian Orthoidea of the Holy Cross Mountains and th...

by Gertruda Biernat

1959 1 ed.