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White (cretaceous) hydathodes on the adaxial surface of the pinnae. These are often present and helpful in identifying the genus. A species-specific characteristic is the costa, which is attached on the basiscopic side of the pinna to the rachis. This spe
| | Copyright © 2001 by Robbin Moran
(contact: kcn2[at]cornell.edu)
[ref. DOL2918]
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