Class Notes (837,447)
Canada (510,273)
Anthropology (1,678)
ANT203Y1 (69)
Lecture

lecture notes 3

5 Pages
56 Views
Unlock Document

Department
Anthropology
Course
ANT203Y1
Professor
Maryam Nargolwalla
Semester
Fall

Description
ANT203 Macroevolution Oct, 04, 2011 Linnaean Classification Taxonomy :dymanics- now organisms relate, reasons behind similarities/differences Classification of humans Kingdom: Animalia (animals) Phylum: Chordata (chordates) Class: Mammalia (mammals) Order: Primates (primates) Family: Hominidae (hominids) Genus: Homo (humans) Species: Homo sapiens *italicize species name  Conventions: o First letter of genus capitalised (Homo) o Species begins with lowercase letter (Homo sapiens) o Genus and species are both italicised (Homo sapiens) o Genus name may be abbreviated (H. sapiens) Kingdom: Animalia  Eukaryotic:  Motile; means they can move around  Heterotrophic ; they are depended on other organisms as a food source  Precambrian Era(~610Ma) Ex. Stromatlite and trilobite Phylum: Chordata  Notochord and nerve cord: flexible joint and rod  Gill slits  Muscles, respiration  Cambrian (~540Ma) *evolved in the Palaeozoic period *ex. Amphioxus, lets us alot about vertibe origins and how these early chordate evolves Subphylum: Vertebrata  Jawless and bony fishes, sharks and rays, amphibians, reptiles, mammals, birds  Segmental spinal column  Developed brain, paired sensory structures (balance, sight, olfaction)  Heads and tails  Closed circulatory system: have heart and blood v vessels  Upper Cambrian (~510Ma) Ex. Agnathans- Agna= jaw hans=less/ lampreys & hagfis, they have fins gills 2 chambered hearts Class: Mammalia  Sweat glands (including mammary glands) produce milk  Hair  Auditory ossicles = 3 bones in ear  Neocortex: are that gives us higher functions in the brain / in human =language  ↑ ontogeny: growth and dev. Animals have it in both  Viviparous: give birth to live youngs  Specialized dentition/heterodont: different kinds of teeths (3insisors :1:4:3molars)  Endothermic: keep body at regulated temperature dispite whats going on outside  Jurassic (~199-145Ma) Mammal Origins -Dimetrodon: mammal like reptile more mammal thn reptile -Steropodon: mammals that layed eggs -Sinodelphis: first evidence of pouched mammals -Eomai: first placental mammal Order: Primates *originated about 65 mya right after the extinction of dinosaurs  Lemurs, lorises, tarsiers, monkeys, apes, humans  Generalized structure (e.g., pentadactyly : 5fingers and toes, ↑ gestation/ ontogeny, dentition, limb structure:allows to move around in a number of way -mammals have specialized dentition  Binocular: front of the sk
More Less

Related notes for ANT203Y1

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit