Species Profile
Australopithecus afarensis
Lucy species
KingdomAnimalia
PhylumChordata
ClassMammalia
OrderUnknown
FamilyUnknown
Introduction
Lived about 3.9–3 million years ago.
Fossils found in Ethiopia and Tanzania.
Important early stage of hominin evolution.
Size & Structure
01
Short height
02
Long arms
03
Bipedal pelvis
04
Prognathous face
Australopithecus afarensis — 3D Model
No 3D model available
General Features
- Coelom
- True coelom
- Body plan
- Tube within a tube body plan (Deuterostomous)
- Germ layer
- Triploblastic
- Metamerism
- Absent
- Body symmetry
- Bilateral
- Fertilization
- Internal
- Digestion type
- Complete
- Nervous system
- Moderate brain size (~400–500 cc)
- Excretory organ
- Kidneys
- Body temperature
- Homeothermic
- Circulatory type
- Closed, double, complete
- Development type
- Direct
- Respiratory type
- Pulmonary respiration
- Mode of excretion
- Ureotelism
- Circulation system
- Closed
- Skeleton structure
- Endoskeleton
- Level of Organisation
- Organ system level
- Regulation of Osmosis
- Osmoregulator
Ecology
Omnivorous diet
Savanna and woodland habitat
Early adaptation to upright walking
Economic Importance
Key fossil in human evolution
Evidence of early bipedalism
Museum and research importance