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Euomphalidae ✝
| Source Data |
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| Rank | family (PBDB) | |||||||||||||||||||||||||||||||||||||||||||||
| Taxonomy (PBDB) | Life : Animalia : Mollusca : Gastropoda : Euomphalina : Euomphalidae | |||||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Opinions (PBDB) |
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| Status (PBDB) | extinct | |||||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 385 | |||||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 499 - 485 Ma Cambrian | |||||||||||||||||||||||||||||||||||||||||||||
| Last Recorded Appearance | 70.6 - 66.0 Ma Late/Upper Cretaceous | |||||||||||||||||||||||||||||||||||||||||||||
| Motility | stationary (based on Euomphalidae) | |||||||||||||||||||||||||||||||||||||||||||||
| Vision | limited (based on Gastropoda) | |||||||||||||||||||||||||||||||||||||||||||||
| Diet | suspension feeder (based on Euomphalidae) | |||||||||||||||||||||||||||||||||||||||||||||
| Ecospace Comments | MINERALOGY: calcitic outer layers and inner aragonitic layers. BODY SIZE: Based on component genera; 3 of 3 genera share 10 to < 100 length, 3 of 3 share 10 to < 100 width. LIFE HISTORY: Surficial, non-motile attached or unattached, suspension feeding according to Bambach et al (2007, based on Wagner pers. comm.). From Batten 1984: There appear to be three layers composing the wall in this species. An outer layer, supposedly of calcite, is composed of very fine, fibrous prisms that are either normal to the outer surface (Figure 2A) or at an angle to it. The prisms are arranged normal to the inner whorl surface. The general appearance is that of asbestoslike coarse myostracum. In contrast to ends of aragonite prism crystals, each crystal terminates in a rhombic cap (Figure 2B). Each of these elongate crystals are undulate with peculiar rounded bosses apparently scattered randomly on the surfaces. The middle layer is composed of a single unit of crossed-lamellar structure (Figure 2C). The inner layer is the thinnest and is also composed of prisms resembling myostracum. Both of these prismatic layers are said to be calcitic and the manner of preservation in the material studied supports this conclusion. Of the 21 specimens examined, all show the outer and inner layer intact, with the middle layer leached out completely in most of the specimens, although a few had enough of the middle layer preserved to identify it. | |||||||||||||||||||||||||||||||||||||||||||||
| Taphonomy | aragonite, low Mg calcite (based on Euomphalidae) | |||||||||||||||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | C. A. White. 1877. The invertebrate fossils collected in portions of Nevada, Utah, Colorado, New Mexico, Arizona, by parties of the Expeditions of 1871, 1872, 1873 and 1874. Chapter VI, Carboniferous age. Report upon U.S. Geographical Surveys west of the 100th Meridian, (G.M. Wheeler surveys) 4(1):79-161 | |||||||||||||||||||||||||||||||||||||||||||||
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
|---|---|---|---|---|---|
| Euomphalinae ✝ subfamily | listed (PBDB) | 1 | 265 Ma Permian | 265 Ma Permian | |
| Euomphalopterinae ✝ subfamily | listed (PBDB) | 70 | 450 Ma Late/Upper Ordovician | 403 Ma Early/Lower Devonian | |
| Odontomariinae ✝ subfamily | listed (PBDB) | 12 | 393 Ma Early/Lower Devonian | 388 Ma Middle Devonian | |
| Spinicharybdiinae ✝ subfamily | listed (PBDB) | 16 | 439 Ma Silurian | 419 Ma Early/Lower Devonian | |
| Acanthonema ✝ genus | accepted (GBIF) listed (PBDB) | 4 | 408 Ma Early/Lower Devonian | 393 Ma Early/Lower Devonian | |
| Alaionema ✝ genus | accepted (GBIF) listed (PBDB) | 5 | 411 Ma Early/Lower Devonian | 388 Ma Middle Devonian | |
| Amphiscapha ✝ genus | accepted (GBIF) listed (PBDB) | 183 | 339 Ma Carboniferous | 279 Ma Permian | |
| Anisostoma ✝ genus | doubtful (GBIF) listed (PBDB) | ||||
| Araeonema ✝ genus | accepted (GBIF) listed (PBDB) | 30 | 388 Ma Middle Devonian | 260 Ma Permian | |
| Austerum ✝ genus | doubtful (GBIF) listed (PBDB) | ||||
| Biformispira ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 419 Ma Early/Lower Devonian | 419 Ma Early/Lower Devonian | |
| Burdikinia ✝ genus | accepted (GBIF) listed (PBDB) | 5 | 388 Ma Middle Devonian | 388 Ma Middle Devonian | |
| Centrifugus ✝ genus | accepted (GBIF) listed (PBDB) | 6 | 427 Ma Silurian | 421 Ma Silurian | |
| Condonella ✝ genus | accepted (GBIF) listed (PBDB) | ||||
| Cylicioscapha ✝ genus | accepted (GBIF) listed (PBDB) | 12 | 307 Ma Carboniferous | 265 Ma Permian | |
| Devonicornu ✝ genus | accepted (GBIF) listed (PBDB) | ||||
| Discotropis ✝ genus | accepted (GBIF) listed (PBDB) | 32 | 290 Ma Permian | 265 Ma Permian | |
| Eleutherospira ✝ genus | doubtful (GBIF) listed (PBDB) | 3 | 409 Ma Early/Lower Devonian | 388 Ma Middle Devonian | |
| Elkoceras ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 339 Ma Carboniferous | 339 Ma Carboniferous | |
| Euomphalopsis ✝ genus | accepted (GBIF) listed (PBDB) | 6 | 499 Ma Cambrian | 479 Ma Early/Lower Ordovician | |
| Euomphalus ✝ genus | accepted (GBIF) listed (PBDB) | 341 | 461 Ma Middle Ordovician | 209 Ma Late/Upper Triassic | |
| Fletcherviewia ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 388 Ma Middle Devonian | 388 Ma Middle Devonian | |
| Goldfussoceras ✝ genus | accepted (GBIF) listed (PBDB) | ||||
| Hippocampoides ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 72.1 Ma Late/Upper Cretaceous | 72.1 Ma Late/Upper Cretaceous | |
| Kiaeromphalus ✝ genus | accepted (GBIF) listed (PBDB) | 2 | 439 Ma Silurian | 439 Ma Silurian | |
| Krasopea ✝ genus | accepted (GBIF) listed (PBDB) | 2 | 411 Ma Early/Lower Devonian | 393 Ma Early/Lower Devonian | |
| Leptomphalus ✝ genus | accepted (GBIF) listed (PBDB) | 25 | 296 Ma Permian | 254 Ma Permian | |
| Linsleyella ✝ genus | accepted (GBIF) listed (PBDB) | 9 | 461 Ma Middle Ordovician | 461 Ma Middle Ordovician | |
| Nevadaspira ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 380 Ma Late/Upper Devonian | 380 Ma Late/Upper Devonian | |
| Nodeuomphalus ✝ genus | accepted (GBIF) listed (PBDB) | 13 | 388 Ma Middle Devonian | 302 Ma Carboniferous | |
| Novakopteron ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 427 Ma Silurian | 427 Ma Silurian | |
| Offleyotrochus ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 441 Ma Silurian | 441 Ma Silurian | |
| Pentagonodiscus ✝ genus | accepted (GBIF) listed (PBDB) | 14 | 197 Ma Early Jurassic | 172 Ma Middle Jurassic | |
| Phanerotinus ✝ genus | accepted (GBIF) listed (PBDB) | 12 | 388 Ma Middle Devonian | 336 Ma Carboniferous | |
| Planotectus ✝ genus | accepted (GBIF) listed (PBDB) | 5 | 279 Ma Permian | 272 Ma Permian | |
| Pleuronotus ✝ genus | accepted (GBIF) listed (PBDB) | 8 | 411 Ma Early/Lower Devonian | 383 Ma Late/Upper Devonian | |
| Poleumita ✝ genus | accepted (GBIF) listed (PBDB) | 79 | 443 Ma Silurian | 408 Ma Early/Lower Devonian | |
| Rhabdotocochlis ✝ genus | accepted (GBIF) listed (PBDB) | 10 | 359 Ma Late/Upper Devonian | 260 Ma Permian | |
| Rihamphalus ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 411 Ma Early/Lower Devonian | 411 Ma Early/Lower Devonian | |
| Saturnotropis ✝ genus | accepted (GBIF) listed (PBDB) | ||||
| Sinistrispira ✝ genus | accepted (GBIF) listed (PBDB) | 3 | 416 Ma Early/Lower Devonian | 403 Ma Early/Lower Devonian | |
| Sinutropis ✝ genus | accepted (GBIF) listed (PBDB) | 10 | 450 Ma Late/Upper Ordovician | 423 Ma Silurian | |
| Straparollus ✝ genus | accepted (GBIF) listed (PBDB) | 293 | 461 Ma Middle Ordovician | 125 Ma Early/Lower Cretaceous | |
| Stusakia ✝ genus | accepted (GBIF) listed (PBDB) | ||||
| Tongweispira ✝ genus | accepted (GBIF) listed (PBDB) | 1 | 247 Ma Early/Lower Triassic | 247 Ma Early/Lower Triassic | |
| Tychobrahea ✝ genus | accepted (GBIF) listed (PBDB) | 3 | 411 Ma Early/Lower Devonian | 393 Ma Early/Lower Devonian | |
| Weeksia ✝ genus | accepted (GBIF) listed (PBDB) | 33 | 93.5 Ma Late/Upper Cretaceous | 70.6 Ma Late/Upper Cretaceous |
Synonymy List
| Year | Name and Author |
|---|---|
| 1849 | Schizostomatidae Bronn |
| 1877 | Euomphalidae White |
| 1896 | Euomphalopteridae Koken |
| 1916 | Straparollinae Cossmann p. 120 |
| 1938 | Euomphalidae Wenz |
| 1938 | Poleumitidae Wenz |
| 1960 | Euomphalidae Knight et al. p. 191 |
| 1960 | Euomphalopteridae Knight et al. p. 211 |
| 1975 | Euomphalidae Golikov and Starobogatov p. 208 |
| Year | Name and Author |
|---|---|
| 1975 | Euomphalopteridae Golikov and Starobogatov p. 208 |
| 1981 | Euomphalidae Morris and Cleevely |
| 1984 | Euomphalidae Linsley and Kier |
| 2003 | Poleumitidae Jeffery |
| 2003 | Euomphalidae Rohr et al. |
| 2005 | Euomphalidae Bouchet et al. p. 241 |
| 2005 | Euomphalidae Heidelberger and Koch p. 34 |
| 2016 | Euomphalidae Nützel and Ketwetsuriya p. 490 |
References
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
