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101 Cards in this Set

  • Front
  • Back

What is Paleo and antos? (paleontology)

Paleo is Old and antos is existense.

Radiometric dating of the earth

4.5 billion years

The study and understanding of fossils

Paleoantology

To become a fossil what must be done first?

An organism must be buried by sediment and preserved over time.

Study of what happens to a fossil from the moment of death to the moment of discovery.

Taphonomy

The study of the strata or layers, of the geological, biological and archeeological record

Stratigraphy

In "principles of Geology" (1830), ______ synethesizes a number of stratigraphic processes/

Lyell

"The principle of original horizontally", _________ believes that layers are laid down by gravity horizontally to earths surface

Nicolas Steno

What is the principle of superposition?

Older layers are laid down first

In Principle of cross, _______ says that cutting relationships a feature that must exist before another feature can cut across it.

James Hutton (1700's)

Predictable sequences of fossils through strata is stated in what book? and by Who?

Principle of faunal successions and by William Smith (1815)

Fossil animals that typify a layer

Index Fossils

contegores paleontologists divide earth's history into


- Earth is 4.5 billion years old: this is the total scale


- Primate evolution occurs only in the Cenozoic Era, during the past 65 million years (.1% of earth's history)

Geological Time Scale aka GTS

What are the two eons?

Precambrian and Phanerozoic ("revealed life")

From the formation of earth untill 542 million years ago

Precambrian

From 542 million years ago untill present

Phanerozoic

Appearance of trilobites and other small, shelly frauna

Boundary

Phanerozic Eon makes ______ appear.

Life

First fish, insects, plants appear in what era?


-542- 248 million years ago


-Cambrian period to Permian extinction

Paleozoic Era

Age of Dinosaur appears in what era?


-248-65 million years ago


-From Triassic Period to Cretaceous period

Mesozoic Era

Whales, Apes, and homonids appear in what era?


- 65- to present


-Paleocene Epach to Holocene Epoch

Cenozoic Era

What era does all this happen in?


- Mammals appear in the mesozoic, but this era is dominated by dinasours


-Radical change in climate causes extinction of dinosaurs


-older mammals also die out at K-T boundary


- Absence of large predators creates opportunities for small, insect eating animals.


-Warm climate continues to cool

Cenozoic

During the origins of primates


- Earth is ______


- Animals exist further _______ and further _______ of the equator.


Warmer


North and south

Primates precursor diverges _______ mya according to the dna analysis.

63

first major worldwide division of rocks and time of the Paleogene Period, spanning the interval between 66 million and 56 million years ago.

Paleocene Epoch

formerely recent epoch that has been covering approximately the last 11,700 years of the Earth’s history.

Holocene Epach

_______ are like the mammals of the Paleocene Epoch.


- any member of the group of animals that includes human beings, apes, and monkeys

Primates

__________ is an extinct order of mammals.

Plesiadapiformes.

second of three major worldwide divisions of the Paleogene Period (66 million to 23 million years ago) that began 56 million years ago and ended 33.9 million years ago.

Eocene Epach

Ancestors of the ____________ (wet noses) are called?


- Slow arboreal quadrupeds that eat fruit and leaves during day

strepsinhines ,Adapoids

Ancestors of __________ (dry noses) are called?


- Larger arloits than adapoids, probably fed at night

Haplorhine ,Omomyoids

-Fully enclosed orbit


-shortened face


-frontal bones fused


-Enlarged brain

Haplorhines

- No postorbital closure


-Smaller brains


-Long face


-Unfused frontal bones

Strepshirhines

The authors say that Ida should be considered ancestral to both ________ (monkey, apes, humans) and ________ (lemurs, lorises, tarsiers)

anthropoids and prosmians

What is the Grand coupure also know as?

The big cut the great break

How many years ago was The Grand Coupure

36 mya

The Grand Coupure ended the Eocene Epoch and started the _________ Epoch (33-23 mya)

Oligocene

Third and last major worldwide division of thePaleogene Period (65.5 million to 23 million years ago), spanning the interval between 33.9 million to 23 million years ago.

Oligocene Epoch

In Oligocene Epoch, The first ________ appeared

Monkeys

Who are the common acestors of Monkeys?

Eosimias

Old world monkeys share a common ancestors with the _____ about 25 mya.

Apes

Old world monkeys had _______ mandables and _______ orbits because they can ________ while _________.

fused, enclosed, chew a tougher diet, whie protecting their visions.

New world monkeys appear on what continent?

South America( 25-30 mya).

Route across the oceon was not clean but the new world monkeys possibly could have __________.

Rafted over

The new world monkeys had ________ and some with __________ tails.

Flat noses, and Prehensile tails

Arboreal

Living in trees

New _________ challenges requires new _________ forms.

Enviornmental, adaptive

Monkesy are __ selected and rare in early ________ but abundant by ________.

R, Miocene, Pliocene

is the epoch in the geologic timescale that extends from 5.333 million to 2.58 million years BP

Pliocene Epoch

Early Apes appear around __ mya/

23

Apes Diverge from monkeys between _____ mya.

23-16

is the first geological epoch of the Neogene Period and extends from about23.03 to 5.332 million years ago

Miocene Epoch

Similarites between Monkeys and Apes

-Both considered primates


-Both considered intelligent


-Both express human like emotions


-Both have opposable thumbs and binocular vision



Nearly _____ of all the primates speices in the world are threatened by with extinction.

Half

_________ diverge from gorillas, chimps, human clade.

Orangs (about 14 mya).

________ diverge from chimps, human claude

Gorillas (about 8.1mya).

________ diverge from chimps.

Human (about 6 mya).

The genus evolved towards the end of these periods.

Plistogene and neogene Periods

The first hominoids, anthropoids end early prosimians at the begening of this period.

Paleogene Period

The first placental mammals appeared this period.

Cretaceous Period

The first flowering plants and the first mammals and bird appeared during these period

Jurassic Period and Triassic Period and Permian period

The first coniferous trees and reptiles and insects appeared during this period.

Carbonifeorous period

The first amphibians and land plants and first bony fish appeared during this period.

Devonian Period

The first fish with jaws appeared during this period.

Silurian Period

The first virtabrates and armored fish without jaws appeared duing this period.

Ordovician Period

Invertabrate fossils, molluscs, crustaceans, echinodermate appeared during this period.

Cambrian Period

First fossiliesed animals and plants; protozoa, spounges, corals, and algie, and fossiled bacteria appeared during this age

Pre cambrian periods

The four eras are... and what order they come in?

Cenozoic, Mesozoic, Paleozoic, and Proteralzoic

Expansion by single group of organisms into a diveresed aray of forms is called

adaptive radiation

What era is the majority of earth's history in?

Proteralzoic Era

Th epochs during the cenozoic era are

Plistogene, neogene, and paleogene

The epochs during the mesozoic era are

cretaceous, jurassic, triassic epochs

The epochs during the paleozoic era are

permian, carbonifoures, devonian, salorian, ordovicion,cambrian

The epochs during the proterozoic era are

pre cambrian epoch

Beds of sediment deposited in water form as horizontal (or nearly horizontal) layers due to gravitational settling.

Law of Original Horizontality

In undisturbed strata, the oldest layer lies at the bottom and the youngest layer lies at the top.
Law of Superposition
Horizontal strata extend laterally until they thin to zero thickness (pinch out) at the edge of their basin of deposition.
Law of Lateral Continuity
An event that cuts across existing rock is younger than that disturbed rock. This law was developed by Charles Lyell (1797-1875).
Law of Cross-Cutting Relationships
Fragments of rock that are contained (or included) within a host rock are older than the host rock.
Principle of Inclusion

The study of our closest living relatives, the primates ,for the purpose of understanding aspects of our own behavior

comparative primatology

primate suborder that includes the lemurs, lorises, and galgos (the posimians)

Strpsirrhini

primate suborder that includes the tarsiers ,monkeys,apes, and humans

haplorrhini

primate superfamily that includes all monkeys found in the Americas

ceboidea

primate superfamily that includes all monkeys found in Africa and Asia

cercopithecoidea

all monkeys, apes, and humans

anthropoids

member of the super family hominoidea

hominoid

the division called a tribe, in the super family Hominoidea that includes humans and our recent ancestors

hominin

methods of dating that provide us with assessments of a fossils age relative to other fossils

relative dating techniques

methods of dating that provide a specific age of a fossil based either on analysis of a piece of the fossil itself or analysis of the rocks surrounding the fossil

chronometric dating techniques

ability to generate and regulate internal body tempreture

homiothermy

having different types of teeth

heterodontism

retention of the fetus inside the body of the female through the course of its prenatal development

internal gestation

ratio of brain to body size

encephalization quotient

a group of early mammals though to be periphally related to primates

pleseadapiformes

superorder of mammals made up of extinct pleseadaptiformes and the living orders Primates, Scandentia (the tree shrews), Chiroptera(the bats), and dermoptera(colugos)

archonta

The order of geologic epochs

Pleistocene(1.8 mya-10000 years ago),Pilocene(5-1.8 mya),Miocene(23-5 mya),Oligocene(35-23 mya), Eocene(53-35 mya), Paleocene(65-53 mya)

difference between the sexes of a species in body size or shape

sexual dimorphism


the ball and socket shoulder joint and the positioning of the scapula on the back allowing for 360 rotation of the arms

brachiator anatomy

Fossil find considered an important link in human evolution until it was shown to be a fake in 1953

Piltdown Man

use of two legs rather than four for locomotion

bipedality

methods of dating that provide us with assessments of a fossils age relative to other fossils

relative dating techniques