# prehistoricplanet fossilfriday paleoart paleostream pterosaurs cretaceous ajnabia dinosaur hadrosauridae lambeosaurinae biogeography paleontology niebla theropoda dinosauria patagonia argentina dinosaurs theropods teeth crocodylomorph croc mosasaurmonday tylosaurustuesday speculativeevolution specevo

A massive tank that seems to go on forever, showcasing a towering stony reef. A thriving reef community stocked with countless exotic looking Maastrichtian sealife. A large Kaikaifilu patrols like a lazing tiger shark

0 0
2023-03-24

Updated some of my spec evo creatures for "A New Yesterday". Introducing the End-Maastrichtian descendants of aristonectines and plotosaurs: the whalers and the squalosaurs!

13 154
2023-01-10

Somewhere in a forest in Late Maastrichtian China, a lone female Qianzhousaurus makes her first kill in almost a week...

I said I would be making more fan art, and I'm gonna make good on that. Figured I'd start with one of my favorite dinosaurs from the show.

14 117
2022-06-27

Super stoked about fortuitously seeing this evening, so here's a Maastrichtian-themed post: Quetzalcoatlus, Tyrannosaurus, Triceratops and Vegasaurus.

203 1157
2022-05-20

Chart of the Dinosaurs and Pterosaurs of Late Maastrichtian Laramidia.

93 453
2022-04-26

Hatzegopteryx ("Hațeg basin wing") is a genus of azhdarchid pterosaur found in the late Maastrichtian deposits of the Densuş Ciula Formation, an outcropping in Transylvania, Romania.
https://t.co/94Gsn2IsJS

2 13
2022-03-28

"Identification of a large anguimorph lizard (Reptilia, Squamata) by an articulated hindlimb from the upper Maastrichtian (Upper Cretaceous) of Basturs-1 (Lleida, Spain)", new paper published in Cretaceous Research

https://t.co/f6VfI48rqs
https://t.co/1fOYKGkGOS

16 27
2021-11-22

Javelinadactylus sagebieli coming in for a landing.

Javelinadactylus is a thalassodromid known from the Maastrichtian Javelina Formation of Texas. Despite being named just 3 weeks ago, it was discovered decades ago.

9 40
2021-08-21

javelinadactylus sagebieli from the

My azhdarchoid skills are rusty af

I need to start sketching them again




3 16
2021-08-02

Hit us up with your scariest dinosaur or pterosaur ... Here's ours:

Hatzegopteryx ("Hațeg basin wing") is a genus of azhdarchid pterosaur found in the late Maastrichtian deposits of the Densuş Ciula Formation, an outcropping in Transylvania, Romania.

Via https://t.co/uwPAGd8upM

0 3
2021-06-24

This was meant to be a rough concept of Albertonectes dragging away a juvi rex, then I found out the Bearpaw is from the latest Campanian. So it's Albertonectes dragging away a juvi Daspletosaurus.

May return to the concept with a spec, indet. Maastrichtian plesiosaur.

70 342
2021-04-19

A group of Alamosaurus sanjuanensis (Ojo Alamo lizard, not named for the Battle of the Alamo but for Ojo Alamo Formation of New Mexico where it was first discovered.), out for an evening walk in the Late Cretaceous Period (Maastrichtian Age 70-66 MYA). Named by Charles W.

0 0
2021-03-11

A pair of creepy looking Albertosaurus sarcpohagus (Alberta lizard) patrolling the forest of Alberta, Canada. Also found in USA, from the Late Cretaceous (possibly as early as the Campanian and Maastrichtian Age 73-68 MYA), Horseshoe Canyon Formation. Named by Henry Fairfield

0 0
2020-12-05

Welcome a new lambeosaurine hadrosaurid from the of Morocco: "The first duckbill (#Hadrosauridae: from Africa and the role of oceanic dispersal in dinosaur by Longrich et al.
https://t.co/4A0e5dNSsY

15 42
2020-11-03

A Tylosaurus prioriger catches a Hesperornis regalis in the shallow inland sea of what one day will become Kansas, USA. Late Cretaceous (Maastrichtian Age 72.1-65.5 MYA). Illustration by Balint Benke. 🤓🐉

0 0
2020-11-02

Welcome to antiqua - "A new medium-sized abelisaurid (#Theropoda, from the late (Maastrichtian) Allen Formation of Northern Theropods are trying to be tranding again. =P
https://t.co/CPvJ2jh5ed

23 62
2020-10-15

Morphological features of reveal a diverse assemblage in the southern Pyrenean basin throughout the & enable inference of feeding habits & environmental preferences.
See it in the special issue now! https://t.co/HUBA16n7RG

15 43
2020-06-30

I missed but I'm going to cheat with

Something that became striking to me recently is that mosasaurs ascribed to the genus Tylosaurus have an incredibly long temporal range.

Coniacian to the Maastrichtian

That's like 22 million years.

6 51
2020-04-29

(1) Ok, tonight was a little different. We created a fictional third major marginocephalian cladeon the
Starting in the Oxfordian and working our way up to the Maastrichtian. All of these are done very quick, very rough.

45 214
2019-11-10

Here's a large catalogue of Edmontosaurus skulls known from the Campanian-Maastrichtian of North America from Campione and Evans (2011).

22 56
2018-02-10