User:Ryan Anderson/Frog
The natural history of frogs....
Understanding Anuran phylogeny
[edit]Cladistics, phylogenetic tree (image), brief discussion of evolutionary principles
Evolutionary origins
[edit]Basal amphibians
[edit]Trematops, Amphibamus lyelli (image), Doleserpeton annectens (image, possibly another image of teeth)
Triadobatrachus
[edit]Description, image (photo, drawing compared with Doleserpeton and with Amphibamus/modern frog)
Modern frogs
[edit]Vieraella, image