Translator Disclaimer
15 October 2020 Metaceratodus baibianorum, a New Dipnoan Species from the Upper Cretaceous of Southern South America Supported by Traditional and Geometric Morphometric Analyses
Author Affiliations +
Abstract

The Upper Cretaceous record of lungfishes from South America is abundant but represented mainly by tooth plates and associated jaw bones. A new dipnoan species from the Upper Cretaceous of the La Colonia Formation, Chubut Province, Argentina, is described here. Metaceratodus baibianorum, sp. nov., is diagnosed by a combination of features (tooth plates from medium to large size, inner angles located at the second cleft in upper tooth plates and at the second ridge in lower ones). Previously, some material of Metaceratodus baibianorum was referred to Metaceratodus wichmanni. However, by applying morphogeometric studies and a statistical analysis to compare means of independent samples, we conclude that Metaceratodus baibianorum, sp. nov., differs from the other species of similar age in Patagonia.

© by the Society of Vertebrate Paleontology
Karen M. Panzeri, Soledad Gouiric Cavalli, Nahuel A. Muñoz, and Alberto L. Cione "Metaceratodus baibianorum, a New Dipnoan Species from the Upper Cretaceous of Southern South America Supported by Traditional and Geometric Morphometric Analyses," Journal of Vertebrate Paleontology 40(2), (15 October 2020). https://doi.org/10.1080/02724634.2020.1769640
Received: 1 July 2019; Accepted: 30 March 2020; Published: 15 October 2020
JOURNAL ARTICLE
PAGES


SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top