General Question

Hawaii_Jake's avatar

Which dinosaurs were alive when the asteroid hit causing the mass extinction?

Asked by Hawaii_Jake (31574points) 4 weeks ago

I know the many types of dinosaurs we see fossils of in the museums did not all live simultaneously. Which ones were around at the end? Was the T-Rex still living? What about the massive plant eaters like the brontosaurus?

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8 Answers

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Yellowdog's avatar

Also, if you want the name of a single dinosaur instead of a group, substitute the suffix “ae” with -“us”

Yellowdog's avatar

My previous answer was removed because it didn’t belong in “General”—but I am re-posting a corrected list.

The three major classifications of ages when dinosaurs were around, were the Triassic, Jurassic, and Cretaceous periods. The Cretaceous era ended the age of dinosaurs. Most people today believed it was a single cataclysmic event rather than a gradual change or dying out.

Anyhow, here is a list of Cretaceous dinosaurs—the last ones before the extinction.

A Wikipedia article would do better than a short answer on a Q&A website.
Here’s the list:

A

Albertosaurinae
Ankylosaurinae

C

Ceratosauria
Coelurosauria

G

Gettyia

H

Hadrosauromorpha

J

Jeholosauridae

K

Kritosaurini

L

Laurasiformes
Leptoceratopsidae
Lithostrotia

M

Maniraptoromorpha
Megaraptora

O

Orodrominae

P
Parksosauridae

R
Rebbachisaurinae
Rhabdodontidae

S
Saltasaurinae
Saurolophinae
Shingopana
Stenonychosaurus
Struthiosaurinae

T

Thescelosaurinae
Thyreophora
Turiasauria
Tyranasaurae (Tyrannosaurs Rex)

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