Amphibians are the smallest group compared to other prehistoric creatures. So we should get much more amphibians
Crocodiles :
Rutiodon (common)
Limnoscelis (common)
Leptosuchus (common)
Aegisuchus (rare)
Microposaurus (rare)
Ramphosuchus (rare)
Deinosuchus (epic)
Prionosuchus (epic)
Smilosuchus (epic)
Large amphibians :
Metoposaurus (common)
Acanthostega (common)
Proterogyrhinus (rare)
Labyrinthodontia (rare)
Eryops (epic)
Ichtyostega (epic)
Mastodonsaurus (epic)
Land crocodiles :
Ticinosuchus (common)
Sebecus (common)
Baurosuchus (common)
Armadillosuchus (rare)
Prestosuchus (rare)
Fasolasuchus (rare)
Arizonasaurus (epic)
Saurosuchus (epic)
Quinkana (epic)