Mitchell, Simon F.; Masse, J-P.; Frenerci-Masse, M.
Author Affiliation, Ana.
Revision of Praecaprina? Pennyi (Harris and Hodson) (Caribbean caprinoid rudist): its placement in Pantojaloria Alencaster: taxonomic, stratigraphic and evolutionary implications
Caribbean Journal of Earth Science
Date of Publication
The revision of the type series of Praecaprina? pennyi from Trinidad, shows that this form should be assigned to the Caprinuloideidae (Amphitriscolitinae) and is a representative of the genus Pantojaloria. Pantojaloria sphaerica and Pantojaloria estanciensis from Mexico and Pantojaloria pennyi from Trinidad are distinctive species and differ by their biometric properties and the distribution of canals in the right valve. Pantojaloria pennyi has some affinities with Conchemipora skeltoni. The genus Praecaprina is absent in the New World. Among the three species of Pantojaloria two belong to the Barremian and one to the early Aptian, their evolution is marked by a size increase and a decrease in the variability of characters, mainly the canaliculation.....