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Details for article 2 of 5 found articles
| Title: |
Evolutionary patterns in the terebratulid genus Caryona Cooper (Brachiopoda, Jurassic of France) |
| Author: |
Almeras, Yves Boullier, Annick |
| Appeared in: |
Historical biology |
| Paging: | Volume 4 (1990) nr. 1 pages 15-37 |
| Year: |
1990 |
| Contents: |
The study of ontogenetic and morphological changes in different species of the brachiopod genus Caryona COOPER (Terebratulidae) from the Lower Callovian-Lower Oxfordian of northern France shows a succession (and an interference) of processes which vary according to the characters studied. This is an example of “mosaic evolution”;. The ontogenetic changes result from heterochrony, especially acceleration and hypermorphism. The main phylogenetic tendency is peramorphosis in most characters. This evolutionary pattern agrees with phyletic gradualism. Moreover, analysis of the internal characters demonstrates the limited value of these in discrimination of the various genera. |
| Publisher: |
Taylor & Francis |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 2 of 5 found articles
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