User:Ryan Anderson/Frog

The natural history of frogs....

Understanding Anuran phylogeny
Cladistics, phylogenetic tree (image), brief discussion of evolutionary principles

Basal amphibians
Trematops, Amphibamus lyelli (image), Doleserpeton annectens (image, possibly another image of teeth)

Triadobatrachus
Description, image (photo, drawing compared with Doleserpeton and with Amphibamus/modern frog)

Modern frogs
Vieraella, image