DescriptionTetrapoda.jpg Tetrapoda collage English: clockwise from top left: Mercurana myristicapaulstris, a shrub frog; Dermophismexicanus, a legless amphibian;
phyllochroa.JPG File:Dermophismexicanus.jpg File:CapetusDB241.jpg File:Acanthostega_model.jpg File:Seymouria1.jpg File:Diplocaulus_BW.jpg Date 11 December
File:Litoria phyllochroa.JPG File:Seymouria1.jpg File:Notophthalmus viridescensPCCA20040816-3983A.jpg File:Dermophismexicanus.jpg All of them are either