Search results for " Rissoidae"

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Taxonomy and palaeobiogeography of the Cenozoic Euro-Mediterranean rissoid gastropod Galeodinopsis and its relationship with close genera

2014

The investigation of the Late Paleogene to Late Neogene species of rissoid gastropod Galeodinopsis in the Euro-Mediterranean area has supported the hypothesis that this genus is an intermediate form between two well-known rissoids, Alvinia and Manzonia. We recognized four species of Galeodinopsis: G. biangulata, G. germanica sp. nov., G. semperi (new name for Rissoa duboisii), and G. tiberiana. The oldest (very Late Eocene/Oligocene) representatives of Galeodinopsis, G. biangulata, and G. semperi, share similar shell shape and microsculpture with Alvinia. This suggests that Galeodinopsis originated from some Eocene species related to Alvinia. The new species represents the first occurrence …

biologyPaleontologyAlvaniaManzoniabiology.organism_classificationAlviniaGastropoda Rissoidae taxonomy palaeogeography biogeographyCenozoic North Sea Atlantic connectionEurope.PaleontologyGenusRissoidaeTaxonomy (biology)PaleogeneCenozoicActa Palaeontologica Polonica
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