THE GEN. <em><em>COMELICANIA</em></em> FRECH, 1901 (BRACHIOPODA) FROM THE SOUTHERN ALPS: MORPHOLOGY AND CLASSIFICATION

Analysis of the internal characters, especially the cardinalia and brachidium, of the brachiopod Comelicania Frech from the Southern Alps, confirmed the attribution of this genus to the Superfam. Athyridoidea Davidson and provided a more complete taxonomic description of the Fam. Comelicaniidae Merl...

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Main Author: RENATO POSENATO
Format: Article
Language:English
Published: Milano University Press 1998-03-01
Series:Rivista Italiana di Paleontologia e Stratigrafia
Online Access:https://riviste.unimi.it/index.php/RIPS/article/view/6110
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author RENATO POSENATO
author_facet RENATO POSENATO
author_sort RENATO POSENATO
collection DOAJ
description Analysis of the internal characters, especially the cardinalia and brachidium, of the brachiopod Comelicania Frech from the Southern Alps, confirmed the attribution of this genus to the Superfam. Athyridoidea Davidson and provided a more complete taxonomic description of the Fam. Comelicaniidae Merla. This family includes two genera which differ in the morphology of their cardinalia, i.e. Gruntallina Waterhouse & Gupta, type-species Gruntallina triangularis (Grunt) from the lower Dorashamian of Transcaucasia and Comelicania, type-species Comelicania megalotis (Stache) from the uppermost Bellerophon Fm. of the Southern Alps. The study of a collection composed of more than a hundred specimens highlighted a broad variability of the morphological characters and a pattern of ontogenetic development which demonstrates that classification at the species level is possible only when using mature specimens. Taxonomic revision at the specific level reduced the eleven species of Comelicania from the Southern Alps, described by previous authors, to: C. megalotis (Stache) and C. haueri (Stache). In addition a new species, C. merlai, which characterises the upper Comelicania beds, is proposed.
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spelling doaj.art-1de708aab58e4cae86809f0908f2101c2023-09-03T05:12:27ZengMilano University PressRivista Italiana di Paleontologia e Stratigrafia0035-68832039-49421998-03-01104110.13130/2039-4942/61105421THE GEN. <em><em>COMELICANIA</em></em> FRECH, 1901 (BRACHIOPODA) FROM THE SOUTHERN ALPS: MORPHOLOGY AND CLASSIFICATIONRENATO POSENATOAnalysis of the internal characters, especially the cardinalia and brachidium, of the brachiopod Comelicania Frech from the Southern Alps, confirmed the attribution of this genus to the Superfam. Athyridoidea Davidson and provided a more complete taxonomic description of the Fam. Comelicaniidae Merla. This family includes two genera which differ in the morphology of their cardinalia, i.e. Gruntallina Waterhouse & Gupta, type-species Gruntallina triangularis (Grunt) from the lower Dorashamian of Transcaucasia and Comelicania, type-species Comelicania megalotis (Stache) from the uppermost Bellerophon Fm. of the Southern Alps. The study of a collection composed of more than a hundred specimens highlighted a broad variability of the morphological characters and a pattern of ontogenetic development which demonstrates that classification at the species level is possible only when using mature specimens. Taxonomic revision at the specific level reduced the eleven species of Comelicania from the Southern Alps, described by previous authors, to: C. megalotis (Stache) and C. haueri (Stache). In addition a new species, C. merlai, which characterises the upper Comelicania beds, is proposed.https://riviste.unimi.it/index.php/RIPS/article/view/6110
spellingShingle RENATO POSENATO
THE GEN. <em><em>COMELICANIA</em></em> FRECH, 1901 (BRACHIOPODA) FROM THE SOUTHERN ALPS: MORPHOLOGY AND CLASSIFICATION
Rivista Italiana di Paleontologia e Stratigrafia
title THE GEN. <em><em>COMELICANIA</em></em> FRECH, 1901 (BRACHIOPODA) FROM THE SOUTHERN ALPS: MORPHOLOGY AND CLASSIFICATION
title_full THE GEN. <em><em>COMELICANIA</em></em> FRECH, 1901 (BRACHIOPODA) FROM THE SOUTHERN ALPS: MORPHOLOGY AND CLASSIFICATION
title_fullStr THE GEN. <em><em>COMELICANIA</em></em> FRECH, 1901 (BRACHIOPODA) FROM THE SOUTHERN ALPS: MORPHOLOGY AND CLASSIFICATION
title_full_unstemmed THE GEN. <em><em>COMELICANIA</em></em> FRECH, 1901 (BRACHIOPODA) FROM THE SOUTHERN ALPS: MORPHOLOGY AND CLASSIFICATION
title_short THE GEN. <em><em>COMELICANIA</em></em> FRECH, 1901 (BRACHIOPODA) FROM THE SOUTHERN ALPS: MORPHOLOGY AND CLASSIFICATION
title_sort gen em em comelicania em em frech 1901 brachiopoda from the southern alps morphology and classification
url https://riviste.unimi.it/index.php/RIPS/article/view/6110
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