Cenozoic Era Flashcards
(42 cards)
2 cenozoic orogenic belts
alpine-himalayan orogenic belt, circum-pacific
abrupt warming trend 55 MYA
paleocene-eocene thermal maximum
dominant flightless birds, paleogene
diatryma
3 mammal groups
monotremes, marsupials, placental
shrews, moles, hedgehogs
insectivora
40% of mammals
rodentia
rodent like with long powerful hind limbs
lagomorpha
winged mammal
chiroptera
bears, seals, skunks, dogs
carnivora
hoofed mammals of artiodactyla and perissodactyla
ungulate
even toed hoofs
artiodactyla
odd toed hoofs
perissodactyla
earliest member of the horse family
hyracotherium
giant land dwelling mammals
proboscidea
blue whales
cetacea
manatee and dugong
sirenia
ice age
pleistocene
first primate appearance
primata
lower primates
prosimii
higher primates
anthropoidea
3 anthropoidea families
cercopithecoidea, ceboidea, hominoidea
close set, downward directed nostrils
cercopothecoidae
flattish face, widely separated nostrils
ceboidae
3 hominoidae families
pongidae, hylobatidae, hominidae