Quantitative analysis of suture lines in Carboniferous ammonoids
Wegerer M, de Baets K, Korn D (2018)
Publication Type: Journal article
Publication year: 2018
Journal
Book Volume: 21
Pages Range: 223-236
Open Access Link: https://doi.org/10.5194/fr-21-223-2018
Abstract
Two morphometric methods are applied and compared for the analysis of suture lines in Early Carboniferous ammonoids of the superfamilies Pericycloidea, Girtyoceratoidea and Goniatitoidea. We analysed (1) classic metric data (proportions of the width and depths or heights of lobes and saddles) using multivariate statistic methods and (2) outline data of the external lobe and the ventrolateral saddle of the same ammonoid taxa using the elliptic Fourier analysis. Both methods lead to similar results and simultaneously demonstrate ontogenetic and phylogenetic trends of these ammonoids. Our results are consistent with three previously suggested evolutionary patterns: (1) a general decrease of the amplitude of lobes and saddles, (2) a proportional widening of the external lobe and (3) a heightening of the median saddle.
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Germany (DE)How to cite
APA:
Wegerer, M., de Baets, K., & Korn, D. (2018). Quantitative analysis of suture lines in Carboniferous ammonoids. FOSSIL RECORD, 21, 223-236. https://dx.doi.org/10.5194/fr-21-223-2018
MLA:
Wegerer, Michael, Kenneth de Baets, and Dieter Korn. "Quantitative analysis of suture lines in Carboniferous ammonoids." FOSSIL RECORD 21 (2018): 223-236.
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