Extinct Animals by Period

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Can you name the Extinct Animals by Period?

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

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