Reptonoditrypa cautica, briozoo incrustante de los olistolitos Cipit de la Formación San Cassiano (Triásico, Ladiniano/Carniano; NE de Italia) y sus implicaciones paleoecológicas
2017 | journal article. A publication with affiliation to the University of Göttingen.
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Reptonoditrypa cautica, briozoo incrustante de los olistolitos Cipit de la Formación San Cassiano (Triásico, Ladiniano/Carniano; NE de Italia) y sus implicaciones paleoecológicas
Sanchez-Beristain, F. & Reitner, J. (2017)
Boletín de la Sociedad Geológica Mexicana, 69(2) pp. 409-420. DOI: https://doi.org/10.18268/BSGM2017v69n2a6
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- Authors
- Sanchez-Beristain, Francisco; Reitner, Joachim
- Abstract
- Reptonoditrypa cautica Schäfer and Fois is a bryozoan species that constituted an important part of the encrusting/binder guild of the Triassic reefs, mainly in the Ladinian and Carnian. In the Cipit boulders of the St. Cassian Formation, it is usually associated with specimens of the thalamid sponge Cryptocoelia zitteli (a member of the constructor/baffler guild), although it can also be seen forming crusts along with microbialites on top of other species of reef builders. It is worth mentioning that, although the sponge is always linked to the bryozoan, this does not apply for the opposite. It is also worth to pinpoint the absence of Reptonoditrypa cautica in other thin-section samples of reef facies from these boulders, as well as the fact that it is the only kind of microencrusting bryozoan found in about 400 thin sections. This article explains the paleoecological role played by this species in the reef systems of the St. Cassian Formation.
- Issue Date
- 2017
- Journal
- Boletín de la Sociedad Geológica Mexicana
- ISSN
- 1405-3322
- Language
- English