final three-fossils and fossil groups Flashcards
(35 cards)
plesiadapiforms
140 + species thrive in Paleocene (65-53 ma) nocturnal
carpolests
is a plesiadapiform, 56 ma not a primate, grasping hands and feet, eyes on sides of head, eyes not fully covered.
cynodonts
permian period + triassic period. thrived, 250 ma before dinosaurs, carnivore reptile with fur.
omomyids
early haplorrimes. 2.1.4.3 dentition later evolved to have 2.1.3.3 leapt strong, long calcaneus,
adapids
early stespirrhines, diurnal, quadrupedal, like modern lemur
procunsulids/procunsils
larger brains sexually dimorphic limb proportions similar to modern day quadropedal apes 2.1.2.3 dentition, y-molars 22.5-13.7 ma
marotopithecus
20 ma, first suspensory primate, flexible shoulders, no more evidence of suspensory abilities after this for 10 my
miocene apes
large diversity, much more robust
danuvius
miocene, suspensory and walked upright on branches
pierolapithecus
miocene, suspensory with no curved fingers
sivapithecus
miocene, looks like an orangutan with a monkey like trunk
ardepithecus kadabba
5.8 ma to 5.2 ma, best known by teeth found, Ethiopia, very fragmented, canine honing complex, controversial curved toe
ardepithecus ramidus
4.4 Ma well known “Ardi” ,mostly complete individual woods and grassland, Ethiopia
Sahelanthropus tchadensis
found in chad, 6.8-7.2 ma
orrorin tognensis
“original man” kenya femur bone, lower jaw, finger bone, teeth, might be bipedal
Australopithecus anamensis
4.1 ma, limbs, upper and lower jaw, many teeth recovered, half a million years before au. afarensis
Australopithecus aferensis
3.6 ma- 3.0 ma well known for specimen found in several sites of Africa, Ethiopia hader is site with lots of remains
Lucy
found in 1973 confirmed bipedalism, 3.2 ma
dikaka child ; slam
baby/ child, 3.3 ma, brain 75% developed at only 2 to 3 projecting face and flat nose very chimp like
kenyanthropus platyops
3.5 ma found lomekwi kenya, broad flat face thick enamel tiny molars, c3/c4 diet like afarensis. tiny brain
australopothecus africanus
3.5- 3.2 ma, “taung child” small brain but maybe bipedal
australopithecus sediba
2Ma long thumb with long distal phalanx, had strength and dexterity to make tools, hyper iron, not efficient walker/runner
australopithecus ghari
2.5 ma larger teeth than a afarensis, small brain but larger side of small
Paranthropus aethiopics
3.0 ma to 2.3 ma Eastern Africa, thick cranial bone, saggital crest, small brain prognathic upper jaw