Extinct Animals by Period

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Can you name the Extinct Animals by Period?

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Genus of AnimalPeriodPaleo-Hint
EryopsThis massive tetrapod is known from the Texas Red Beds
KnightiaThe most common fish in the Green River Formation
PikaiaOne of the earliest chordates
SpinosaurusThe star of Jurassic Park III, this animal was probably more at home catching fish than chasing paleontologists
DiornisThe largest of the Moa of New Zealand
GracileLucy in the Sky With Diamonds!
OpabiniaAn extremely 'Weird Wonder' of the Burgess Shale
TyrannosaurusIt can see you, even if you don't move, so run. Crichton Corrected his error in The Lost World. Read it.
AnomalocarisAt almost one meter, one of the world's first 'super-predators'
Gastornis (formerly Diatryma)One of the last great dinosaurian predators, this bird likely hunted mammals as they diversified early in their reign
VaranopsThis was an early synapsid, or 'mammal-like reptile'
CretoxyrhinaThis large shark is known from fossils from the Western Interior Sea
DilophosaurusThis large (for its time) predator probably did not spit venom or feed on computer programmers
DickinsoniaAn extremely odd creature from the hills of South Australia
PriscacaraA perch known well from Lakes Gosiute, Uinta, and Fossil
EuparkariaRelated to dinosaurs (including birds), pterosaurs, and crocodiles, this genus was one of the earliest Archosaurs
Genus of AnimalPeriodPaleo-Hint
IchthyostegaAn early tetrapod
ArthropleuraA three-meter basal uniramian, this was probably the largest terrestrial arthropod of all time
ShonisaurusOne of the largest, and earliest, ichthyosaurs known
LystrosaurusThis odd 'reptile' survived the greatest extinction in the history of life on Earth
Velociraptor'Clever girl...'
MarrellaWalcott's first find in his British Columbia quarry
TiktaalikCo-discovered by Niel Shubin, this is one of the earliest known tetrapods
MeganeuraA dragonfly with a meter wingspan
RhamphorhynchusThis long-tailed pterosaur probably caught fish over tropical Europe
DunkleosteusA placoderm the size of an orca whale
GorgonopsThis synapsid gave Nick Cutter and the rest some trouble
SmilodonThe much-loved 'sabre-toothed tiger'
PareiasaurusA genus that named a group, these multi-ton herbivores roamed the world for a brief time at the end of an era
QuetzalcoatlusArguably the largest pterosaur ever. Don't call it 'Quetz.'
TylosaurusThe largest mosasaur known
Varanus priscus (formerly Megalania)Not counting mosasaurs and snakes, the largest lizard known

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Created Nov 11, 2011ReportNominate
Tags:biology, dinosaur