first block Flashcards
Australopithecus africanus
What am I?
Australopithecus afarensis
Chimpanzee
Gorilla
Homo erectus
Homo ergaster
Homo habillus
Homo neandertalensis
Parenthropus boisei
far right
Homo sapien
second from left
Orangutan
second from left
Homo heidelbergensis
How do we have DNA from extinct species?
Frozon carcasses
Is 20% of the sequence of one gene enough information to create a reliable phylogenetic tree?
No. it can be close, but to get the most accurate the entire gene should be compared
What features should you check for identifying skulls?
- crainial shape
- face shape,
- prognathism–jutted out jaw
- jaw build–thickness, chin, curvature
- teeth–tooth differentiation, prominence of canines, shape of molars
What period are anthozoan from?
ordovician
what period are brachiopods from?
ordovician and paleozoic
what period are bryozoan from?
ordovician
what period are cephalopods from?
ordovician
what period are crinoid from?
ordovician
what period are gastropods from?
ordovician
what period are pelecypods from?
ordovician and paleozoic
what period are trilobites from?
ordovician
what period are stromatolite from?
pre-cambrian