Erratothilda Gründel, 1997
|
publication ID |
https://doi.org/10.4202/app.2012.0052 |
|
persistent identifier |
https://treatment.plazi.org/id/99201644-FFB5-3A51-FCF9-FAF8FC7FF876 |
|
treatment provided by |
Felipe (2024-08-08 21:19:35, last updated 2024-08-08 23:30:56) |
|
scientific name |
Erratothilda Gründel, 1997 |
| status |
|
Genus Erratothilda Gründel, 1997 View in CoL
Fig. 3C View Fig .
Type species: Eucycloidea erratica Gründel, 1990 , original designation; glacial erratic boulder from Bauer−Wehrland / Mecklenburg−Vorpommern, NE Germany, Callovian .
Included species: Eucycloidea erratica Gründel, 1990 , Callovian; Erratothilda dziki Kaim, 2004 , Valanginian; Erratothilda krawczynski Kaim, 2004 , Valanginian;? Erratothilda wascherae Gründel, 2006 , Late Bathonian.
Emended diagnosis.—Shell and ornament basically as in Angulathilda . However, Erratothilda has three or more primary spiral ribs. Erratothilda has a pronounced micro−ornament.
Remarks.—The characteristic micro−ornament has not been shown for Erratothilda wascherae Gründel, 2006 which comes from a locality at which the preservation is not sufficient to show such fine details.
Stratigraphic and geographic range.—Questionable Bathonian, certainly from the Callovian to Early Cretaceous; Germany,? France.
Grundel, J. 1990. Gastropoden aus Callov-Geschieben aus dem Norden der DDR. I. Procerithiidae und Mathildidae. Zeitschrift fur geologische Wissenschaften 18: 763 - 773.
Grundel, J. 1997. Heterostropha (Gastropoda) aus dem Dogger Norddeutschlands und Nordpolens. I. Mathildoidea (Mathildidae). Berliner geowissenschaftliche Abhandlungen, Reihe E 25: 131 - 175.
Kaim, A. 2004. The evolution of conch ontogeny in Mesozoic open sea gastropods. Palaeontologia Polonica 62: 1 - 183.
Fig. 3. Type species and examples for Jurassic genera of the family Mathildididae. A. Carinathilda carinata Gründel, 1997, bore Kłęby (formerly Klemmen) 1/37, Poland, Bathonian; from Gründel (1997: pl. 7: 98). B. Angulathilda calloviensis (Gründel, 1997), erratic boulder from Hohendorf near Wolgast 3/96/3, Germany, Callovian; from Gründel (1997: pl. 7: 98, 101). Whole specimen (B1), detail of the ornament (B2). C. Erratothilda erratica (Gründel, 1990), erratic boulder from Bauer−Wehrland, Germany, Callovian; from Gründel (1997: pl. 7: 104, 105). Whole specimen (C1), detail showing ornament (C2).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.