User:Ryan Anderson/Frog
Appearance
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