AN111 COMPARING EARLY HOMININ SKULLS Туре Ape Homo sapiens Gracile (modern humans) occipital condyles "Robust" Australopithecine Australopithecine Paranthropus Location of on base of skull Condylar Index = (Ba to Op / Ba to Pr) x 100 Position of maximum skull breadth when viewed from back Presence and degree of postorbital constriction in superior view Size of neurocranium relative to size of facial skeleton as seen in the lateral view Facial Index = (Upper Facial Height / Cranial Height) x 100 Degree of prognathism as seen in the lateral view Presence and degree of development of supraorbital torus Robustness of zygomatic arch Presence of a sagittal crest Presence of a mental eminence Relative size of incisors vs. molars (M> or < or = 1) Size of canines to other teeth (C > or =) In mandible: presence of diastema and sectorial premolar

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
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AN111 COMPARING EARLY HOMININ
SKULLS
Туре
Ape Homo sapiens Gracile
(modern
humans)
occipital condyles
"Robust"
Australopithecine Australopithecine
Paranthropus
Location of
on base of skull
Condylar Index =
(Ba to Op / Ba to
Pr) x 100
Position of
maximum skull
breadth when
viewed from back
Presence and
degree of
postorbital
constriction in
superior view
Size of
neurocranium
relative to size of
facial skeleton as
seen in the lateral
view
Facial Index =
(Upper Facial
Height / Cranial
Height) x 100
Degree of
prognathism as
seen in the lateral
view
Presence and
degree of
development of
supraorbital torus
Robustness of
zygomatic arch
Presence of a
sagittal crest
Presence of a
mental eminence
Relative size of
incisors vs. molars
(M> or < or = 1)
Size of canines to
other teeth
(C > or =)
In mandible:
presence of
diastema and
sectorial premolar
Transcribed Image Text:AN111 COMPARING EARLY HOMININ SKULLS Туре Ape Homo sapiens Gracile (modern humans) occipital condyles "Robust" Australopithecine Australopithecine Paranthropus Location of on base of skull Condylar Index = (Ba to Op / Ba to Pr) x 100 Position of maximum skull breadth when viewed from back Presence and degree of postorbital constriction in superior view Size of neurocranium relative to size of facial skeleton as seen in the lateral view Facial Index = (Upper Facial Height / Cranial Height) x 100 Degree of prognathism as seen in the lateral view Presence and degree of development of supraorbital torus Robustness of zygomatic arch Presence of a sagittal crest Presence of a mental eminence Relative size of incisors vs. molars (M> or < or = 1) Size of canines to other teeth (C > or =) In mandible: presence of diastema and sectorial premolar
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