Dromaeosaurid Size Comparisons

[Troodon 10,632]

David Evans who described Acheroraptor shared this photo and information on a few notable Dromaeosaurid's.  Thought it would be of interest to the Dino guys and others.  I also show a hand next to an adult Velociraptor skull which gives a real life size comparison, since a lot of depictions and replicas sold are well oversized.

 

Acherorapter is from the Maastrichtian of Hell Creek/Lance Formation

Saurornitholestes shown from Campanian of Canada/Montana 

Velociraptor from Campanian of Asia

 

David: How big was the Hell Creek dromaeosaurid Acheroraptor temertyorum (top)? It’s about 25% bigger than Saurornitholestes (middle) and 66% bigger than Velociraptor (bottom). For reference it’s about 15% smaller than Deinonychus

 

 

 

 

[TyBoy 19]

That's very interesting.   Did not appreciate the size of velociraptor, thanks for posting

[Fossildude19 6,563]

Interesting  - here is a comparative size chart I found on Google Images:

 

 

Original artwork by FredtheDinosaurman

[Bobby Rico 2,494]

9 minutes ago, Fossildude19 said:

Interesting  - here is a comparative size chart I found on Google Images:

 

 

Original artwork by FredtheDinosaurman

Why is the man in the picture from Victorian England , was people not general smaller in them days? 

 

very interesting thank you  @Troodon

 

 

[ynot 4,705]

1 hour ago, Bobby Rico said:

Why is the man in the picture from Victorian England ,

It's Dc. Dolittle. He was the only one that could get them critters to line up for the picture!

[Wilhelm 5]

2 hours ago, Fossildude19 said:

Interesting  - here is a comparative size chart I found on Google Images:

 

Original artwork by FredtheDinosaurman

Huh, thought Deinonychus was bigger than that. Guess the people who keep saying Deinonychus is the true JP Velociraptor are thinking of Austroraptor or Utahraptor.

[Troodon 10,632]

Dakotaraptor from the Hell Creek Formation a biggie

 

[Wilhelm 5]

2 minutes ago, Troodon said:

Dakotaraptor from the Hell Creek Formation a biggie

 

Haven't seen a lot of Dakotaraptor teeth around. Even though the species was described fairly recently you would think isolated teeth would have been found in abundance.

[Fossildude19 6,563]

15 minutes ago, Wilhelm said:

Huh, thought Deinonychus was bigger than that. Guess the people who keep saying Deinonychus is the true JP Velociraptor are thinking of Austroraptor or Utahraptor.

Yes, I remember reading somewhere that the "Velociraptor" in JP was embellished in size, since  Deinonychus was the biggest dromaeosaurid  described, up until then (1993).

Spielberg wanted the Velociraptors to be bigger, and therefore, more scary. 

Utahraptor was discovered in 1991, but I don't think it was formally described at the time. 

Dakotaraptor was found in 2005. 

[Troodon 10,632]

On 4/16/2018 at 11:43 AM, Wilhelm said:

Haven't seen a lot of Dakotaraptor teeth around. Even though the species was described fairly recently you would think isolated teeth would have been found in abundance.

Have not seen very many Dakotaraptor teeth so they appear to be scarce.  Having said that the teeth are difficult to identify and look very similiar to juvie Nanotyrannus teeth.   Some that I've seen on the market were misidentified.  I have yet to find one.  Most sellers are clueless in how to properly Identify them, so caution.

Edited April 18 by Troodon

[Troodon 10,632]

Learn about Utahraptor

 

 

[Troodon 10,632]

The original (type specimen) skull of Velociraptor

 

Set of Velociraptor  skulls

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Images courtesy of Thomas Holt

[Troodon 10,632]

Today is Velociraptor Awareness Day! 

Dave Evans posted this

Velociraptor mongoliensis is a dromaeosaurid dinosaur. Its known from the late Campanian of Mongolia & lived ~73 million years ago. There is a second referred species, V. osmolskae, but it may be closer to Tsaagan & may need a new genus name. 

Check out those claws

[Moozillion 95]

On 4/16/2018 at 12:54 PM, ynot said:

It's Dc. Dolittle. He was the only one that could get them critters to line up for the picture!

[Seguidora-de-Isis 883]

By the paleoartistic reconstructions that I find on the internet, unfortunately I still can not tell apart one specie of the other... All I know, and I can say with certainty, is that these animals are delicious! Every Sunday me and my family eat one of them roast...

 

 

To tell you the truth, I think they are nicer and more appetizing like this... Roastaraptor I eatensis!

 

 

[Troodon 10,632]

Not all chicken size but here is a Paleo illustrators rendition of different Dromaeosaurids

 

Jed Taylor of Redbubble

 

Top Row Left to Right

Linheraptor, Velociraptor, Tsaagan, Saurornitholestes, Microraptor

Bottom Row

Changyuraptor, Zhenyuanlong, Acheroraptor, Dromaeosaurus, Atrociraptor