Chapter 6 Flashcards
1
Q
Principle of Superposition
A
Sedimentary ayers at the bottom are older than sedimentary layers at the top
2
Q
Fossil Taphonomy
A
The study of decaying organisms over time and how they may become fossilized
3
Q
Paleocene Epoch
A
- Adaptive radiation of Plesiadapiformes
- 65 to 56 million years ago
4
Q
Eocene Epoch
A
- Emergence of Euprimates (true primates) in Europe, Africa, Asia, and North America (adaptive radiation)
- 56 to 35 million years ago
5
Q
Plesiadapiformes
A
archaic primates which may have one lineage that eventually accumulates evolutionary changes that we recognize as primate characteristics.
6
Q
Adapoids
A
- Aboreal, have nails, grasping feet, and post-orbital bar
- Strepsirhine lineage
- Eocene Period
7
Q
Omomyoids
A
- Nocturnal, aboreal leaping niche
- Tarsier lineage
- Eocene period
8
Q
Simiiform anthropoids
A
- Fossils found in Africa, Asia, Europe
- Mid Eocene
9
Q
Oligocene
A
- 35 to 23 million years ago
- adaptive radiation of simiiform anthropoids in both the Old and New Worlds occurred.
- Ancestors of fossil monkeys
10
Q
Aegyptopithecus
A
- Fossil of old world monkey found in Fayum, Egypt
- Oligocene Period
11
Q
Miocene
A
- 23 to 5 million years ago
- Adaptive radiation of the hominoids
- First definite Old World Monkeys
12
Q
Proconsul
A
- Oldest known hominoid
- Y-5 molar cusp pattern
- Called “dental apes” because they do not have the brachiator anatomy of later hominoids.
13
Q
Homiothermy
A
Ability to generate and regulate internal body temperature
14
Q
Heterodontism
A
Having different types of teeth
15
Q
Lactation
A
Internal production of a nutrient-rich milk by the fmale to feed young offspring
