# Goniophora

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***Goniophora***[1] is an extinct genus of clams. It lived during the [Ordovician](/source/Ordovician) to [Permian](/source/Permian) 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

1. Phillips, John (1848). [*The Malvern Hills compared with the Paleozoic districts of Abberley*](https://archive.org/details/memoirsgeologic02britgoog). Vol. II, Part I. Memoirs of the Geological Survey of Great Britain and of the Museum of Practical Geology in London. p. 264.

## External links

- ["Goniophora hamiltonensis pelecypod from the Moscow Formation"](https://viewsofthemahantango.blogspot.com/2020/04/goniophora-hamiltonensis-pelecypod-from.html). Retrieved 2020-06-18.
- ["Goniophora Bivalve Shell (open)"](https://www.thefossilforum.com/index.php?/gallery/image/33661-goniophora-bivalve-shell-open/&browse=1). Retrieved 2020-06-08.

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Adapted from the Wikipedia article [Goniophora](https://en.wikipedia.org/wiki/Goniophora) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Goniophora?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.