© 1999 ENSI (Evolution & the Nature of Science Institutes) www.indiana.edu/~ensiweb
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CLASSROOM CLADOGRAM OF
VERTEBRATE/HUMAN EVOLUTION

GROUPS OF TRAITS
Find the Trait Group which first appeared in your team's animal group.


TRAITS GROUP "BROWN"
incisor-canine-cheek teeth sequence
legs under body
body temperature regulation
TRAITS GROUP "ORANGE"
paired front and hind limbs with
internal bones

TRAITS GROUP "GREEN"
jaws
teeth
internal skeleton
gill arches
paired appendages
TRAITS GROUP "PURPLE"
walking legs
shoulder and pelvic girdles
five fingers and toes
neck

TRAITS GROUP "TAN"
2123 dental formula (upper and lower)
no tail
TRAITS GROUP "RED"
tooth differentiation
embryonic membranes (amnion, etc.)

TRAITS GROUP "YELLOW"
dermal (skin) bones
skull
paired lateral eyes
pineal ("third") eye
lung
TRAITS GROUP "BLUE"
head end, tail
notochord
myotomes (muscle bundles)
dorsal nerve cord
gill basket, with "gill slits"
TRAITS GROUP "OLIVE"
small canine teeth
long arms
simple tool making, butchering
precision grip
bipedal (erect posture)
foramen magnum more forward

TRAITS GROUP "BLACK"
complete bony palate
cheek teeth crowned
teeth replaced only once
molars double-rooted
three ear bones
lumbar region rib-frree
double occipital condyle

TRAITS GROUP "WHITE"
grasping hands
collar bone
closed eye socket
nails (fingers and toes)
eyes in front
muzzle reduction
 

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