Question

1] 2] Describe 3 traits unique to the crania, dentition and post crania for these species;

Australopithecus aferensis, Homo erectus, Homo heidelbergensis,

Homo neandertalensis and Homo sapiens.

Answer 1

Answer:

$\rightarrow$Austalopithecus aferensis:-

• Austalopithecus aferensis have small crania of less than 500 cm.
• They had small canine teeth, lower jaw produded and flat nose.
• They also had long strong arm for the climbing adapation and has upright walking pattern.

$\rightarrow$Homo erectu:-

• They had expanded crania in comparison to the face around 600-1250 cc.
• They had the larger teeth than the teeth of H.sapiens, shooped in appearance (backside of the incisor).
• Along with that they have the big size body, elongated legs,shorter arm than torso.

$\rightarrow$Homo heidelbergensis:-

• They had larger crania of 1100-1400 cc , complete mauer jaw ,enlarged browridges but had small body adapted to the cold habitat and had flater face than the previous old human species.

$\rightarrow$Homo neandertalensis:-

• They were very closer human relatives.The crania had suprainiac fossa, globe shaped rear skull,occipital bun ,low flat crania of 1200-1750 cc.
• They dentition pattens were similar to human but absence of groove on canine teeth, space back of last molar.
• They also had angled cheek bones ,big nose.Body was shorther and stalkier than modern human.

$\rightarrow$Homo sapiens:-

• They have cranial capacity of 1400cc, have developed brain, flat vertical forehead,high vaulted skull and heavy browridges.
• Jaw is little less developed than other human species with smaller teeths.Dentition- 8 incisor,4 canine and 8 molar, teeth composed of dentins covered by enamel.Bipedal locomotion.

Please Rate My Answer............Thank...............u...