Dinosaurs Unit 1

3 types of rocks

sedimentary

metamorphic

igneous

types of sedimentary rock

limestone

sandstone

mudstone

shale

conglomerate

best rocks for dinosaurs

sedimentary, not conglomerate

environment to find dinos

desert/mountains, little or no vegetation, regular erosion

best environment to bury dinos

fluvial

when and where did study of dinos start

1820s england

who coined term dinosauria when

richard owens 1842

what dinos did richard owens go off of

megalosaurus, iguanodon, hyleosaurus

dino rush when and who

1870s cope and marsh

when were the expeditions

early 1900s

where did the americans go

mongolia…

where did the russians go

mongoliawh

where did the germans go

tanzania

what was roy andrews looking for in american expedition

trace of early humans, found dino eggs

when and what and who was dino renaisance

1970, john Ostrom, dinos are birds

where is most dinos found today

china

fossil

evidence of ancient life 10,000 years old

archaeologist study what

human history less thatn 10000 yearws

how fossilize

permineralization (mineral fill empty space)

freeze

amber

what is oil

ALGAE not dinos

superposition

old below youngu

uniformitarianism

laws/processes today were laws always (evidenced by sand ripples)

statophenetic method

grandparents below grandchildren not used today

is fossil record complete

fossil record not complete

radiometric dating

measure half life of stuff thats not carbon

evolution

gradual change and adaptation of species

*descent with modification*

how does evolution happen

natural selection from environment

what did darwin observe

birds

lizards

turtles

rocks

platypus on different continents

what is church’s stance on evolution

church has no stance

what is a theory

best explanation we have

what do paleontologists study

ancient life, through fossils

what do museums do

research

teach

display

preserve fossils

field work

preparation

curation (catalog)

why casts

not break as easily as real bones, put together for display, share easily, light weight

how to define dinosaurs

define by geneology, everything descended from common ancestor of birds and triceratops

diagnosis of dinosaurs

upright, walk on toes, acetabelum, crest on humerus, diapsids

diapsids

2 holes behind eye, unidirectional lungs

additional hole in front of eye

archosaurs

silesaurus

close relative but not dinosaur

homology

shared trait from common ancesto4

convergence example

wings of birds bats and bugs

divergence

one species evovles separately

taxa

what you’re interested incla

clade

group that inclueds all decendents

grade

paraphyly, excludes some descendentsh

hypothesis

possible explanation, needs more testing

rule of priority

first name stays

amniote

has amnion, sack of salty water so can go on land no stuck in water for birth

problem of cladistics

convergence makes it hard

deinonychus

dinosaur john ostrom likedfir

first reasonlaby complete dino found in New jerey

hadrosaurus