Euomphalidae is an
extinct family
Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...
of
Paleozoic
The Paleozoic (or Palaeozoic) Era is the earliest of three geologic eras of the Phanerozoic Eon.
The name ''Paleozoic'' ( ;) was coined by the British geologist Adam Sedgwick in 1838
by combining the Greek words ''palaiós'' (, "old") and ' ...
to early
Mesozoic
The Mesozoic Era ( ), also called the Age of Reptiles, the Age of Conifers, and colloquially as the Age of the Dinosaurs is the second-to-last era of Earth's geological history, lasting from about , comprising the Triassic, Jurassic and Creta ...
marine molluscs which may be
gastropods
with anisostrophically coiled shells (according to the
taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).
The shells show a
selenizone.
Genera
Genera in the family Euomphalidae include:
''Euomphalidae''
The Paleobiology Database, accessed 12 August 2009.
* '' Acanthonema''
* '' Alaionema''
* ''Amphiscapha
''Amphiscapha'' is a fossil gastropod mollusk, or less likely a monoplacophoran, genus from the Pennsylvanian and Lower Permian of North and South America, included in the family Euomphalidae
Euomphalidae is an extinct family of Paleozoic ...
''
* '' Anisostoma''
* '' Araeonema'' - synonym: ''Palaeoturbina''
* '' Austerum''
* '' Bicarina''
* '' Biformispira''
* ''Centrifugus
†''Centrifugus'' is an extinct species of fossil sea snail, a marine gastropod mollusk in the family Euomphalidae, which paleontologists place in the order Archaeogastropoda.
This species was originally known from the Upper Silurian of northe ...
'' - synonym: ''Hisingeria''
* ''Coelodiscus
''Ceolodiscus'' is a genus in the gastropod family Euomphalidae from the Lower and Middle Jurassic
The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Trias ...
'' C.-C.Jao, 1941 (unaccepted)
* ''Cylicioscapha
''Cylicioscapha'' is an extinct genus of fossil mollusk, probably a gastropod, a robust-looking euomphalid from the upper Paleozoic
The Paleozoic (or Palaeozoic) Era is the earliest of three geologic eras of the Phanerozoic Eon.
The name ' ...
''
* '' Discotropis''
* '' Eleutherospira''
* '' Elkoceras''
* '' Euomphalopsis''
* '' Euomphalus'' J. de C. Sowerby, 1814 - type genus
In biological taxonomy, the type genus is the genus which defines a biological family and the root of the family name.
Zoological nomenclature
According to the International Code of Zoological Nomenclature, "The name-bearing type of a nomina ...
- synonyms: ''Phymatifer'', ''Schizostoma'', ''Paromphalus''.
* '' Fletcherviewia''
* '' Goldfussoceras''
* '' Hippocampoides''
* '' Kiaeromphalus''
* '' Leptomphalus''
* '' Linsleyella''
* '' Nevadaspira''
* '' Nodeuomphalus''
* '' Novakopteron''
* '' Nummocalcar''
* '' Odontomaria''
* '' Offleyotrochus''
* '' Phanerotinus''
* '' Planotectus''
* '' Platybasis''
* '' Pleuronotus''
* ''Poleumita
''Poleumita'' is an extinct genus of medium-sized sea snails, fossil marine gastropods in the family Euomphalidae. This genus is known from the Silurian
The Silurian ( ) is a geologic period and system spanning 24.6 million years from the ...
'' - synonyms: ''Polytropina'', ''Polytropis''.
* '' Rhabdotocochlis''
* '' Saturnotropis''
* '' Sinistrispira''
* ''Sinutropis
''Sinutropis'' is a genus of fossil sea snails, extinct euomphalid archaeogastropods from the Upper Silurian
The Silurian ( ) is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period, at million ...
''
* '' Spinicharybdiinae''
* '' Straparollus''
* '' Stusakia''
* '' Tychobrahea''
* '' Weeksia''
* '' Woehrmannia''
References
* Bouchet P., Rocroi J.P., Hausdorf B., Kaim A., Kano Y., Nützel A., Parkhaev P., Schrödl M. & Strong E.E. (2017). Revised classification, nomenclator and typification of gastropod and monoplacophoran families. Malacologia. 61(1-2): 1–526.
External links
Linsley R.M. & Yochelson E.L. 1973. Devonian Carrier Shells (Euomphalidae) from North America and Germany. Geological Survey Professional Paper, 824: 1-26, pl. 1-6.
External links
{{paleo-gastropod-stub