Wikipedia:
trachyteuthis hastiformis
| Trachyteuthis hastiformis Fossil range: Jurassic |
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 Restoration of Trachyteuthis hastiformis.
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Extinct (fossil)
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| Trachyteuthis hastiformis (Rüppel, 1828) |
Trachyteuthis hastiformis is an extinct species of cephalopod, currently the only member of its genus.
The taxonomic placement of Trachyteuthis is uncertain. Though often assigned to the order Vampyromorphida, the discovery of fossilised Trachyteuthis beaks in the Upper Jurassic limestone of Germany suggests a close phylogenetic relation to the Octopoda (Klug et al. 2005; see also Fischer & Riou 2002) .
 Fossilised cuttlebone-like structure of T. hastiformis |
References
- Fischer, Jean-Claude & Riou, Bernard (2002): Vampyronassa rhodanica nov. gen. nov sp., vampyromorphe (Cephalopoda, Coleoidea) du Callovien inférieur de la Voulte-sur-Rhône (Ardèche, France). Annales de Paléontologie 88(1) 1−17. [French with English abstract] doi:10.1016/S0753-3969(02)01037-6 (HTML abstract)
- Klug, C.; Schweigert, G.; Dietl, G. & Fuchs, D. (2005). Coleoid beaks from the Nusplingen Lithographic Limestone (Upper Kimmeridgian, SW Germany). Lethaia 38(3): 173-192. doi:10.1080/00241160510013303 (HTML abstract)
External links
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