#arkansaurus

[alex-fictus]

Ornithomimiosaurs!! I have a few more planned but this is the group I have so far. Arkansaurus - Gallimimus

Deinocheirus

Ornithomimus - Struthiomimus

Stickers || Phone Wallpaper Masterlist

[si-nequal-is]

Arkansaurus fridayi

[slogokonnor99]

Time for the monthly drawing recap!

In this month:

- David witnesses the food chain in action as a salt lion catches a Hesperornis

- Johanna and Hilda are about to be caught between old rivals: a Nanuqsaurus and a Pachyrhinosaurus

- with the help of a water spell, Frida helps an Asterosteus, along with other small creatures, to return to the sea

- David gets some voluntary work done by helping to count how many baby Arkansaurus have hatched

- Hilda gets a ride on her mum's shoulders as a flock of Leptostomia fly above them

[a-dinosaur-a-day]

As an Arkansan, I had to vote for the group with Arkansaurus. Home state dino babey 😎🤘

I remember when Arkansaurus was published! It's always nice for states without a lot of nonavian dinosaurs to finally get a state dino!

[eartharchives]

Arkansas’s state dinosaur officially named

Discovered nearly 50 years ago, Arkansas’s state dinosaur, Arkansaurus, is officially named.

More than 100 million years ago, an ostrich-like dinosaur roamed prehistoric Arkansas. Image by Brian Engh

[alex-fictus]

My Mesozoic is Blue 💙💙💙

Nyasasaurus - Hatzegopteryx - Maiasaurus

Liopleurodon - Unenlagia - Qianzhousaurus

Sarcosuchus - Sinomacrops - Vallibonavenatrix

Majungasaurus - Maip macrothorax - Arkansaurus

Gastonia - Styracosaurus - Ankylosaurus

Troodon (?) - Megalosaurus** - Brachiosaurus

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**Megalosaurus is in my updates list. Gotta take care of those broken wrists by the time their discovery day comes around next year!

[a-dinosaur-a-day]

Arkansaurus fridayi

By Meig Dickson

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Name: “Arkansaurus fridayi”

Name Meaning: Arkansas Reptile

First Mentioned: 1983

Mentioned By: Sattler

Classification: Dinosauria, Theropoda, Neotheropoda, Averostra, Tetanurae, Orionides, Avetheropoda, Coelurosauria, Tyrannoraptora, Maniraptoriformes, Ornithomimosauria

“Arkansaurus” is an as-yet undescribed theropod from the Trinity Group in Arkansas, dating to between the Aptian and Albian ages of the Early Cretaceous, around 113 million years ago. Based upon fragmentary remains of the feet, vertebrae unassociated with this specimen have been said to belong to it. Dinosaurs aren’t very well known from Arkansas, and the classification of Arkansaurus is up for debate; until it is fully described, the jury is still out. It is thought to be an Ornithomimosaur, but it is far too early in the fossil record to be a well derived one, such as Ornithomimus. It could, alternatively, be a basal Coelurosaur. 

Sources:

http://www.geology.ar.gov/pdf/pamphlets/dino.pdf

https://en.wikipedia.org/wiki/Arkansaurus

http://theropoddatabase.com/Coelurosauria.htm#Arkansaurusfridayi

This is your friendly reminder that ADAD relies on reblogs up and until @staff gets it’s shit together. Please reblog this post.

Shout out goes to @manilaicee!

[paleochick]

Welcome newly published #dinosaur, Arkansaurus fridayi! Can you guess where it was found? . Described by University of Arkansas paleontologists & alumnus ReBecca HF, #Arkansaurus was an ancestral relative of ornithomimids like Ornithomimus and Struthiomimus. Paleoart by the fabulous Brian Engh. Fossils rule! . Publication: https://t.co/pqncYcWTt6