prevertebrate
protovertebrate
speciation
phylogenesis
phyletic
phylogenetic
prototetrapod
premammalian
protomammal
vertebrate paleontology
evolutionally
cophylogenetic
over time
bioevolutionary
cophylogeny
ecoevolutionary
zoogenetic
vert
ecoevolution
anamorphic
recapitulation
paleovertebrate
homophyletic
darwin
bioevolution
foetus
fetus
paleoevolution
phylotype
cyclostome
prephylogenetic
horotely
evolvement
tetrapod
evolutionarily
thecodont
thecodont reptile
tetrapodomorph
normoevolutive
evolutionary
life form
eriptychiid
young mammal
recapitulate
clanistics
evolutionism
theory of organic evolution
amphibiotic
Paleocene epoch
evolutionary trend