Relative Time + Earth History
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57 Terms
Nautilus
Deep Ocean Scavengers
Coiled shell
Strong Beaks
Ancestors - Paleoziois
Cuttlefish
Affectionate'
Hatch + can already fend for themselves
Quick predator
Great Vision
No shell
Dominant Male
Camaflouge + Changes colors
Squid
Smart
Thin, Transparent
Camaflouge shape + color
No shell
Dies after giving birth
Octopus
Blue Ring
Can squeeze into space 1/10 its size
Can walk on land
Small
Poison can paralyze you
1st period of the Mesozoic
Triassic
2nd period of the Mesozoic
Jurrasic
3rd period of the Mesozoic
Cretaceous
Plesiurus weight
1,100 lbs
Psylodants are like mammals b/c
They lay eggs, but nurse the babies
Age of the Mammals
Cenezoic
Time frame/era with the least amt of periods
Precrambrian
Modern Man
Cenezoic
Earliest Rock Form
Precrambrian
Age of Fish
Paleozoic
Mostly Volcanos on land
Precrambrian
Age of the Amphibians
Paleazoic
Era or timeframe of with the most time periods
Paleozoic
Shortest era
Cenezoic
Longest Era
Precrambrian
Trilobites
Paleozoic
Age of the reptiles
Mesozoic
Quaternary Period
Cenezoic
Triassic Period
Mesozoic
Cretaceous Period
Mesozoic
Cambrian Period
Paleozoic
First Birds
Mesozoic
First Plants
Mesozoic
Carboniderous period consisting of the Missisipian and Pennsylvanian
Paleozoic
First multi-celled organisms
Precrambrian
Extinction of the trilobites occured at the end of this era
Paleozoic
First organisms with shells
PaleozoicK
Large coal swamps
Paleozoic
Era that only has two periods
Cenezoic
Only era with epochs
Cenezoic
Hadean Eon
Precrambrian
Smallest to largest era
Cenezoic, Mesozoic, Paleozoic, Precrambrian
Approximate age of the Earth
4.5 billion
Amphibians
Chordates
Crinoids
Echinoderms
Gastropods
Mollusks
Blastoids
Echinoderms
Millipedes
Arthropods
Centipedes
Arthropods
Spiders
Arthropods
Reptiles
Chordates
Articulate + Inarticulate
Brachiopods
Fish
Chordates
Pelecypods
Mollusks
Bilateral Symmetry
Brachiopods
Echinoids
Echinoderms
Nautilus
Cephalopods
Cuttlefish
Cephalopods
Squid
Cephalopods
Octopus
Cephalopods
Clams
Pelecypods
Oysters
Pelecypods
Modern Snails of today
Gastropods