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Found in 1921 in the Wealden area of Sussex in England during construction of an arterial road, Dinocochlea was originally presumed to be a fossilised gastropod shell.As such, it was given a Latin name that translates to "giant terrible snail" using the "dino-" prefix in a nod to Dinosaur ("terrible lizard") and refers to the nearby, paleontologically significant, quarry that featured many ...
3 – aperture 4 – columella 5 – suture 6 – body whorl 7 – apex Four views of a shell of Arianta arbustorum: Apertural view (top left), lateral view (top right), apical view (bottom left), and umbilical view (bottom right). The gastropod shell is part of the body of many gastropods, including snails, a kind of mollusc.
Shell of Cirsotrema varicosum (Lamarck, 1822) Scientific classification; ... marine gastropod mollusks in the family Epitoniidae, commonly known as the wentletraps. [1]
Most species of wentletrap are white, and have a porcelain-like appearance. They are notable for their intricately geometric shell architecture, and the shells of the larger species are prized by collectors. The more or less turret-shaped shell consists of tightly-wound (sometimes loosely coiled), convex whorls, which create a high, conical spiral.
List of gastropods described in 2010; List of gastropods described in 2011; List of gastropods described in 2012 - 2012 in molluscan paleontology#Newly named gastropods; List of gastropods described in 2013 - 2013 in paleomalacology#Gastropods; List of gastropods described in 2014 - 2014 in molluscan paleontology#Newly named gastropods
This genus is a heterogeneous assemblage. Because the shell characters of this genus converge with those of the larger specimens of some closely related genera (Saphtia Winter, 2008, [3] Pseudosaphtia Winter, 2008 [3] and Vanmolia Winter, 2008 [3]), the delimitation of * To Thapsia s.l. is difficult. There very few papers that describe the ...
A spire is a part of the coiled shell of molluscs. The spire consists of all of the whorls except for the body whorl. Each spire whorl represents a rotation of 360°. A spire is part of the shell of a snail, a gastropod mollusc, a gastropod shell, and also the whorls of the shell in ammonites, which are fossil shelled cephalopods.
Siphonal indentations have evolved multiple times in gastropods and are widespread among many clades. Euomphanilae gastropods in the genus Scalites developed siphons in the early Ordovician period (448-443 MYA); however, they are not observed in any other members of the clade. 22 of an estimated >23 instances of siphonal indentations evolved in Murchosinoniinae gastropods - the two major ...