''Goniophora''
is an extinct genus of clams. It lived during the
Ordovician
The Ordovician ( ) is a geologic period and System (geology), system, the second of six periods of the Paleozoic Era (geology), Era, and the second of twelve periods of the Phanerozoic Eon (geology), Eon. The Ordovician spans 41.6 million years f ...
to
Permian
The Permian ( ) is a geologic period and System (stratigraphy), stratigraphic system which spans 47 million years, from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.902 Mya. It is the s ...
periods.
Description
''Goniophora'' has a sharply angular, distinctive shell with a prominent ridge extending the length of the shell. The shell also has fine growth lines.
References
External links
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Bivalves described in 1848
Modiomorphida
Prehistoric bivalve genera
{{paleo-bivalve-stub