Biology:Tylopterella
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| Tylopterella | |
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| Fossil Tylopterella boylei | |
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| Superfamily: | †Onychopterelloidea
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| Genus: | †Tylopterella Størmer, 1951
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| Type species | |
| Tylopterella boylei Whiteaves, 1884
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Tylopterella is a genus of prehistoric eurypterid classified as part of the family Onychopterellidae. The genus contains one species, T. boylei, from the Silurian of Ontario, Canada .[1] A second species, ‘Tylopterella’ menneri, was described from Devonian of Taymyr, Russia ; however, it was subsequently reinterpreted as a member of Chasmataspidida rather than a eurypterid, an assigned to a separate genus Dvulikiaspis.[2]
Tylopterella is distinguishable by its small size, and its thick, partly calcareous exoskeleton with curved ridges of confluent tubercules and large knobs near the median line. Its prosoma (head) has a raised margin.[3]
See also
- List of eurypterids
References
- ↑ Dunlop, J. A., Penney, D. & Jekel, D. 2015. A summary list of fossil spiders and their relatives. In World Spider Catalog. Natural History Museum Bern, online at http://wsc.nmbe.ch, version 16.0 http://www.wsc.nmbe.ch/resources/fossils/Fossils16.0.pdf (PDF).
- ↑ David J. Marshall; James C. Lamsdell; Evgeniy Shpinev; Simon J. Bradd (2013). "A diverse chasmataspidid (Arthropoda: Chelicerata) fauna from the Early Devonian (Lochkovian) of Siberia". Palaeontology in press. doi:10.1111/pala.12080.
- ↑ Størmer, L. 1955. Merostomata. Treatise on Invertebrate Paleontology, Part P Arthropoda 2, Chelicerata, P34.
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Wikidata ☰ Q7860281 entry
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