Articles | Volume 21, issue 2
Foss. Rec., 21, 223–236, 2018
https://doi.org/10.5194/fr-21-223-2018
Foss. Rec., 21, 223–236, 2018
https://doi.org/10.5194/fr-21-223-2018
Research article
11 Sep 2018
Research article | 11 Sep 2018

Quantitative analysis of suture lines in Carboniferous ammonoids

Michael Wegerer et al.

Viewed

Total article views: 2,810 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
2,380 373 57 2,810 107 47 55
  • HTML: 2,380
  • PDF: 373
  • XML: 57
  • Total: 2,810
  • Supplement: 107
  • BibTeX: 47
  • EndNote: 55
Views and downloads (calculated since 11 Sep 2018)
Cumulative views and downloads (calculated since 11 Sep 2018)

Viewed (geographical distribution)

Total article views: 2,290 (including HTML, PDF, and XML) Thereof 2,214 with geography defined and 76 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 18 May 2022
Download
Short summary
Two morphometric methods are applied for the analysis of suture lines in Early Carboniferous ammonoids: (1) classic metric data using multivariate statistic methods and (2) outline data are analysed using the elliptic Fourier analysis. Both methods lead to similar results and demonstrate ontogenetic and phylogenetic trends in these ammonoids: (1) a general decrease in the amplitude of lobes and saddles, (2) a proportional widening of the external lobe, and (3) a heightening of the median saddle.