Definitions
from the GNU version of the Collaborative International Dictionary of English.
- noun (Paleon.) A genus of Cretaceous fossil shells allied to oysters.
Etymologies
Sorry, no etymologies found.
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Examples
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The specimen submitted to analysis was taken near the upper part of the bed, about four feet above the line, along which the exogyra are the most numerous.
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They are found in those beds for the same reason that the exogyra costata of the green sand is also found in the miocene.
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Leopold von Buch has discovered exogyra and trigonia in the southern hemisphere (volcano of
COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1 Alexander von Humboldt 1814
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