4
4
January
592
598
COX, L. R. 1962. New genera and subgenera of Mesozoic Bivalvia. Palaeontology, 4, 4, 592–598.
L. R. Cox The following new taxa, belonging to the families stated, are diagnosed and discussed: Palmoxytoma subgen. nov., type species, Pecten cygnipes Young & Bird, Middle Lias (Oxytomidae, now advanced from subfamily to family rank); Rhaetavicula gen. nov., type species, Avicula contorta Portlock, Rhaetic (Pteriidae ?); Ornithopecten gen. nov., type species, Aviculopecten bosniae Bittner, Middle Trias (Aviculopectinidae); Ensio gen. nov., type species, Ptychomya agassizii Lycett, Bajocian (Astartidae). The Palaeontological Association (Free Access)