Eocelia

References

Images

Diagram showing rib strength evolution in the brachiopod Eocelia, with horizontal bars representing the range of rib height-to-width ratios for fossil samples over time. Four species are illustrated on the left, with time in millions of years ago marked vertically. Yellow bars indicate confidence intervals, and sample means are shown as dots. Explanatory text describes how rib strength data distinguishes species and evolutionary transitions.

Eocelia

brachiopod genus

Written by

The Information Architects of Encyclopaedia Britannica

Learn about this topic in these articles:

evolution
Gradual and punctuational evolution
…fossil brachiopods of the genus Eocelia. Results of the analysis of an abundant sample of fossils in Wales from near the beginning of the Devonian Period is shown in the figure. One possible interpretation of the data is that rib strength changed little or not at all from 415 million…
Read More
…fossil brachiopods of the genus Eocelia. Results of the analysis of an abundant sample of fossils in Wales from near the beginning of the Devonian Period is shown in the figure. One possible interpretation of the data is that rib strength changed little or not at all from 415 million…
Read More