| Description | Scenella is an extinct genus of fossil invertebrate animal which is generally considered to be a mollusc; at various times it has been suggested that this genus belongs with the gastropods, the monoplacophorans, or the helcionellids, although no firm association with any of these classes has been established. An affinity with the hydrozoa (as a flotation device) has been considered, although some authors oppose this hypothesis. A gastropod affinity is defended on the basis of six pairs of internal muscle scars, whilst the serially-repeated nature of these scars suggests to other authors a monoplacophoran affinity. However the specimens showing this scarring have not been convincingly shown to belong to the genus Scenella. A similarity to the Ediacaran Ovatoscutum has also been drawn.
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| Source Data | |
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| Rank | species |
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| Taxonomy (GBIF) | Life : Animalia : Mollusca : Scenellidae : Scenella : Scenella pretensa |
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| Taxonomy (PBDB) | Life : Animalia : Mollusca : Tergomya : Scenellidae : Scenella : Scenella pretensa |
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| Taxonomic Status (GBIF) | accepted |
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Classification
(PBDB,GBIF) | |
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| Generic Name | Scenella |
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| Scientific Name | Scenella pretensa Raymond, 1905 |
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| Opinions (PBDB) | | Name | Rank | Opinion | Evidence | Author |
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| Scenella pretensa | species | belongs to Scenella | stated without evidence | Raymond, 1905 |
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| Status (PBDB) | extinct |
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| Taxon Size (PBDB) | 1 |
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| First Recorded Appearance | 466 - 458 Ma
Ordovician |
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| Last Recorded Appearance | 466 - 458 Ma
Ordovician |
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| Motility | facultatively mobile (based on Scenella) |
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| Vision | blind (based on Scenellidae) |
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| Diet | grazer (based on Scenella) |
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| Primary Reference (PBDB) | P. E. Raymond. 1905. The fauna of the Chazy Limestone. The American Journal of Science 20:353-382 |
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| Wikipedia | https://en.wikipedia.org/wiki/Scenella_pretensa |
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Scenella pretensa ✝
