Ocular shell structures in some Cretaceous trachyleberid Ostracoda
Micropaleontology
By: M. Kontrovitz and T.M. Puckett
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Abstract
This is the first study of internal ocular shell structures of Cretaceous ostracodes. Internal molds from eight species of four genera from Santonian, Campanian, and Maastrichtian strata revealed a stalked ocular sinus constricted along its length and distally inflated. The latter part has anterior and posterior lobes and a subcentral concavity. These Cretaceous trachyleberids have ocular shell structures similar to Cenozoic taxa and it is presumed they functioned similarly. However, each taxon has a diagnostic ocular sinus and an inner surface of the eye tubercle that distinguishes each from all other forms examined.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Ocular shell structures in some Cretaceous trachyleberid Ostracoda |
| Series title | Micropaleontology |
| Volume | 44 |
| Issue | 2 |
| Year Published | 1998 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Micropaleontology |
| First page | 201 |
| Last page | 206 |
| Google Analytic Metrics | Metrics page |