Class Gastropoda
Family Architectonicidae Gray, 1850
Genus Discotectonica Marwick, 1931
Species Discotectonica semisquamosa (Bronn, 1831)
Discotectonica semisquamosa (Bronn, 1831) (Mollusca – Gastropoda – Architectonicidae). Rare species more frequent in the lower Pliocene, in deep sediments.
Discotectonica semisquamosa (Bronn, 1831) (Mollusca – Gastropoda – Architectonicidae). È una specie piuttosto rara più frequente, solitamente in sedimenti argillosi profondi nel Pliocene inferiore.
Original description / Descrizione originale :
Solarium semisquamosum
Testa orbiculato-subconoidea; anfractibus circinnatim subtiliter sulcatis; sulcis aeque subtilibus et distantibus verticalibus in anfractibus superioribus; facie inferna prope marginem acutum subincavatum stria elevata cincta; sulco umbilicum mediocrem plicatulo-crenulatum cingente.
from page 63 di Bronn H.G. (1831). Italiens Tertiär-Gebilde und deren organische Einschlüsse : vier Abhandlungen.
Distribution
From Miocene to Pleistocene: Várpalota (Hungary), Montebaranzone, Montegibbio (Emilia Romagna), Sant’Agata, Stazzano (Piedmont), Reggio Calabria (Calabria); Tortonia stage. Tetti Borelli (Piedmont) Messinian. Pliocene, in Italy reported for Piedmont, Liguria, Tuscany and Sicily. Pleistocene: Ypseni (Gelasian) and Kritica (Calabrian) in the Rhodes Island. (Greece). (Chirli, 2013, p. 12)
Bibliographic references and some more common synonyms
1831 Solarium semisquamosum Bronn, p. 63.
2002 Discotectonica semisquamosa – Bogi et al., p. 33, figs 10, 11.
2011 Discotectonica semisquamosa – Chirli & Linse, p. 211, figs 2 a-d.
2013 Discotectonica semisquamosa – Chirli, p. 11, pls 3-4, figs 13-15, 1-3.
References
Chirli C. & Linse U. (2011). The Pleistocene Marine Gastropods of Rhodes Island (Greece). Ed. by the Autors, Grafiche PDB, Tavarnelle V.P. (Firenze), 447 pp, 90 Pls.
Chirli C. (2013). Malacofauna Pliocenica Toscana. Vol. 9. Gastropoda fine. Scaphopoda. Carlo Chirli Ed., Tipografia Vanzi srl, Colle di Val di Val d’Elsa, pp. 164, pls 24.
We thank our friend Massimo Cresti for the execution and use of the photos.
Ringraziamo per l’esecuzione e l’uso delle foto, l’amico Massimo Cresti
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