Abstract

A previously undocumented echinoid fauna occurs in the terrigenous clastic sedimentary sequence of the Old Pera Beds (Lower Pleistocene) and the overlying Port Morant Formation (Upper Pleistocene) at Old Pera, parish of St. Thomas, southeast Jamaica. The fauna is comprised of complete tests (particularly from two horizons in the Port Morant Formation), test fragments, and radioles, and includes:Cidaris(Tretocidaris)bartletti(A. Agassiz);Eucidaris tribuloides(Lamarck); diadematoid indet. gen. and sp.;Echinometra viridisA. Agassiz;Echinometra? sp.;Clypeaster rosaceus(Linné); a juvenileC. subdepressus? (Gray); mellitid indet. gen. and sp.; clypeasteroid sp.;Schizaster doederleiniChesher;Meoma ventricosa(Lamarck); and irregular indet. gen. and sp.Schizaster doederleiniis still extant in the Caribbean, but is not known to live in Jamaican waters.Schizaster doederleiniandMeoma ventricosaare the first nominal spatangoids to be reported from the Jamaican Pleistocene.

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.