Basal Tetrapods, slightly revised
After earlier identifying
phylogenetic miniaturization at the bases of several major clades in the large reptile tree (LRT, 969 taxa), I wondered if similar size-related patterns appear in basal tetrapods.
- Osteolepis is smaller than Eusthenopteron. Has anyone removed the scales from the fore fins of Osteolepis to see what the bones inside look like?
- Pholidogaster is much larger than Osteolepis, but Colosteus and Phlegethontia are successively smaller with smaller limbs.
- Ventastaga and Pederpes are successively smaller than Ichthyostega.
- Koilops is much smaller than Ventastaga and Pederpes
- Eucritta is much smaller than Proterogyrinus, both in overall size and in relative torso length. Eucritta nests at the base of the Seymouriamorpha + Crown Tetrapoda.
Source: https://pterosaurheresies.wordpress.com/2017/03/12/basal-tetrapods-slightly-revised/
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