Calagrassor sp.
publication ID |
https://doi.org/ 10.11646/zootaxa.5427.1.1 |
publication LSID |
lsid:zoobank.org:pub:923206B0-E8C5-4FD5-B882-55009ABB0282 |
persistent identifier |
https://treatment.plazi.org/id/03CE9F1C-FF83-0C5D-FF65-FA3AEE6EFE2A |
treatment provided by |
Plazi (2024-03-19 21:17:48, last updated 2024-03-19 21:37:23) |
scientific name |
Calagrassor sp. |
status |
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Figs 9B–C View FIGURE 9
Scalaspira View in CoL ? nov. sp.— Harzhauser et al. 2015: 95, pl. 3, figs 11–12.
Material. NHMW 2014/0379/0042, SL: 42 mm, MD: 24 mm,Allerding ( Austria), Fig. 9B View FIGURE 9 ; NHMW 2014/0379/0043, SL: 39 mm, MD: 23 mm, Allerding ( Austria), Fig. 9C View FIGURE 9 .
Description. “ Teleoconch of about 6 to 7 whorls, which gradually increase in convexity. Penultimate whorl strongly convex with incised sutures; one specimen displays irregular axial folds. Last whorl inflated with shallow adsutural concavity, delimiting a more prominent sutural cord; rest of whorl covered with about 30 densely spaced spiral cords with slightly granulose surface, separated by narrow interspaces. Base rapidly contracting into a moderately long and slightly deflected siphonal canal. The few, irregularly spaced, weak, fold-like axial ribs of the last whorl become most prominent along the neck. Pear shaped aperture with thin outer lip; inner lip very narrow and thin.” ( Harzhauser et al. 2015: 95).
Discussion. The specimens are reminiscent of Gailleagrassor paratethyca nov. sp. but have a more inflated last whorl and more delicate spiral cords. The coeval Calagrassor mathiasi Kovács, Leél-Őssy & Vicián, 2023 is much slenderer and has fewer and broader spiral cords. Calagrassor hoernesi ( Bellardi, 1873) , from the Tortonian of the Po Basin ( Italy) has a similar outline but differs in its much more prominent spiral sculpture of primary cords (see Bellardi 1873: pl. 11, figs 14a–b; Brunetti & Della Bella 2016: fig. 19F). Although the specimens seem to represent a yet undescribed species, the fragmentary preservation does not allow a formal description.
Paleoenvironment. Found in an assemblage from rocky shore environments.
Distribution in Central Paratethys. Ottnangian (Early Miocene): North Alpine Foreland Basin: Allerding ( Austria) ( Harzhauser et al. 2015).
Bellardi, L. (1873) I molluschi dei terreni terziarii del Piemonte e della Liguria, 1. Cephalopoda, Pteropoda, Heteropoda, Gasteropoda (Muricidae e Tritonidae). Memorie della Reale Accademia delle Scienze di Torino, Series 2, 27, 33 - 294. [https: // www. biodiversitylibrary. org / item / 45374 # page / 5 / mode / 1 up] https: // doi. org / 10.5962 / bhl. title. 12269
Brunetti, M. M. & Della Bella, G. (2016) Revisioni di alcuni generi della famiglia Buccinidae Rafinesque, 1815 nel Plio-Pleistocene del Bacino Mediterraneo, con descrizione di tre nuove specie. Bollettino Malacologico, 52, 3 - 37. [https: // www. biodiversitylibrary. org / item / 278546 # page / 5 / mode / 1 up]
Harzhauser, M., Landau, B. M., Mandic, O., Kroh, A., Kuttelwascher, K., Grunert, P., Schneider, S. & Danninger, W (2015) Gastropods of an Ottnangian (Early Miocene) rocky shore in the North Alpine Foreland Basin (Allerding, Austria). Jahrbuch der Geologischen Bundesanstalt, 154, 83 - 113. [https: // opac. geologie. ac. at / wwwopacx / wwwopac. ashx? comman d = getcontent & server = images & value = JB 1541 _ 083 _ A. pdf]
Kovacs, Z., Leel-Ossy, Sz. & Vician, Z. (2023) Ilona Valley revisited - A rich early Miocene gastropod fauna from the North Hungarian Basin. Fragmenta Palaeontologica Hungarica, 38, 1 - 52. [https: // fragmenta. nhmus. hu / sites / default / files / nhmusfiles / pdf / Frag 38 _ Kov % C 3 % A 1 cs _ et _ al _ 2023 _ 0. pdf] https: // doi. org / 10.17111 / FragmPalHung. 2023.38.1
NHMW |
Naturhistorisches Museum, Wien |
MD |
Museum Donaueschingen |
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Calagrassor sp.
Harzhauser, Mathias & Landau, Bernard M. 2024 |
Scalaspira
Harzhauser, M. & Landau, B. M. & Mandic, O. & Kroh, A. & Kuttelwascher, K. & Grunert, P. & Schneider, S. & Danninger, W 2015: 95 |