dc.creatorRomano, Marco
dc.creatorCitton, Paolo
dc.creatorCipriani, Angelo
dc.creatorFabbi, Simone
dc.date.accessioned2020-02-18T17:57:53Z
dc.date.accessioned2022-10-15T04:32:54Z
dc.date.available2020-02-18T17:57:53Z
dc.date.available2022-10-15T04:32:54Z
dc.date.created2020-02-18T17:57:53Z
dc.date.issued2018-02
dc.identifierRomano, Marco; Citton, Paolo; Cipriani, Angelo; Fabbi, Simone; First report of hybodont shark from the toarcian rosso ammonitico formation of umbria-marche apennine (polino area, terni, central Italy); Societa Geologica Italiana; Italian Journal of Geosciences; 137; 1; 2-2018; 151-159
dc.identifier2038-1719
dc.identifierhttp://hdl.handle.net/11336/97916
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4345492
dc.description.abstractIn this contribution we present the first material referable to hybodont shark from the Rosso Ammonitico Formation (Umbria-Marche-Sabina Palaeogeographic Domain). Two teeth were recovered isolated within Toarcian red marly-limestone (Bifrons Zone). The best-preserved tooth is characterized by a general structure well in accord with the classic crushing dentition typical of hybodont sharks within the Subfamily Acrodontinae. The gently domed occlusal surface of the tooth does not show any trace of occlusal crest and of wrinkles, and is characterized by densely pitted, finely reticulated ornamentation. The available characters allow a conservative classification of the material at the genus level as Asteracanthus sp. The best-preserved tooth can be referred to the most mesial area of the first row of lateral teeth, using as a reference the holotype of Asteracanthus medius. The new material represents the earliest evidence of Asteracanthus and the second one from the whole Northern Apennines (Central Italy), throwing new light on the dispersal of the genus on the Jurassic Tethys.
dc.languageeng
dc.publisherSocieta Geologica Italiana
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://www.italianjournalofgeosciences.it/297/article-873/article.html
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3301/IJG.2018.01
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectASTERACANTHUS
dc.subjectHYBODONT SHARK
dc.subjectPELAGIC CARBONATE PLATFORM
dc.subjectTOARCIAN
dc.subjectUMBRIA-MARCHE-SABINA DOMAIN
dc.titleFirst report of hybodont shark from the toarcian rosso ammonitico formation of umbria-marche apennine (polino area, terni, central Italy)
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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