| Abstrakt: |
AbstractFifteen species of Cassidae, of which three are new, and one species of Tonnidae are recognized from the Cenozoic deposits of southern Australia. These are: Cassis exigua(incorporating the synonyms Cassis textilis, Cassis contusus, Cassis salisburyensis, and probably Cassis nana), Cassis fimbriata; Echinophoria statioliteralissp. nov., Echinophoria wilsoni, Echinophoriaaff. Echinophoria pollens, Echinophoria trinodosa; Galeodea fuscirivularissp. nov., Galeodea goudeyisp. nov., Galeodea gradata; Semicassis pyrum; Antephalium sufflatum, Antephalium transennum, Antephalium radiatum, Antephalium semigranosum(including Semicassis muelleriand Semicassis subgranosaas synonyms), Antephalium adcocki; and Eudolium bairdii(synonymous with Dolium biornatum). Cassids and tonnids have a sporadic record in southern Australia from late Eocene to the present, owing to breaks in the stratigraphical record and lack of suitable facies. All the genera found fossil are known in the living fauna, but species of Echinophoria, Galeodeaand Eudolium, are now confined to warmer waters of northern Australia, whereas Antephalium, which ranges from early Miocene to the present, is confined to southern Australia. Living species of Cassisand Semicassishave a circum-Australian distribution. Semicassis pyrumhas a circumpolar distribution occurring also in New Zealand, South America and South Africa.Thomas A. Darragh [tdarragh@museum.vic.gov.au], Museums Victoria, GPO Box 666 Melbourne 3001, Victoria, Australia. |
