peradectid
extirpated
mylodon
Bradypus tridactylus
boreaspidid
pleuropholid
phyllolepid
great auk
ai
phytosaurian
plesiadapiform
mammaliamorph
vombatomorph
imperiled
sparassocynid
genus Archaeornis
genus Protoavis
aspidorhynchiform
anchithere
caprinid
palaeoryctid
archaeocete
Raphus cucullatus
eosauropterygian
kioea
dodo
mahajangasuchid
pantolest
elephant bird
louisinid
clevosaurid
eptatretus
maradid
paleozoology
heath hen
Tympanuchus cupido cupido
aepyornis
palaeozoology
order Belemnoidea
solitaire
Belemnoidea
eriptychiid
prophaethontid
yalkaparidontid
zoolite
Pezophaps solitaria
dinornithiform