Stenopterygius quadrisicissus
foraminiferal
miliolid
genus Polydactylus
heteromyd
Polydactylus
genus Procavia
tritheledontid
Procavia
genus Proterochampsa
Proterochampsa
elphidiid
ampharetid
heterorhabditid
forskaliid
estemmenosuchid
eutherocephalian
orbitolinid
heterospiline
genus Pterodactylus
Trionyx
green pit viper
Platalea
genus Trionyx
Pterodactylus
genus Platalea
spring quillwort
genus Vireo
trirachodontid
ambulacrarian
eutheriodontian
steinernematid
cladothere
heterodont
Trichechus
genus Trichecus
prairie clover
mud plantain
winkle
heteroderid
genus Vipera
stegocephalian
Vipera
eutheriodont
genus Deinocheirus
trichostrongylid
dryolestoid
proterotheriid
genus Podargus
Podargus