Abstract

The genera Reticulocythereis Puri, 1960, and Climacoidea Puri, 1956, which occur in Pliocene to Holocene marine deposits of the Atlantic and Gulf Coastal Plain, have been examined and found to possess a vertical row of four adductor muscle scars and two frontal scars, a carapace that is subovate in lateral view and widest behind the middle, and an amphidont hinge having a conical anterior tooth in the right valve. These and other characteristics indicate placement in the North American ostracode tribe Campylocytherini. Climacoidea and Reticulocythereis differ from one another and from the campylocytherine genus Proteoconcha Plusquellec and Sandberg, 1969, only in details of carapace ornament. We propose that Proteoconcha and Reticulocythereis be relegated to subgenera of the genus Climacoidea. As do other genera of the tribe, species of Climacoidea inhabit inner sublittoral to brackish environments in mild-temperate to subtropical waters. Two new species C. (Reticulocythereis) foresteri , and C. (Reticulocythereis) reticulata are diagnosed.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.