#kritosaurus

[korybing]

TYRANT LIZARD QUEEN by Riley Black comes out in October, 2026! I had the pleasure of being asked to contribute nearly 30 illustrations to this new book, and it follows the life cycle of one Tyrannosaurus Rex nicknamed "Snaggletooth" through her life cycle! It's one part highly-informative paleo-science, one part toxic enemies-to-lovers dinosaur yuri, and one part "damn, nature, you scary" and you'll love it, I promise.

Tumblr flagged my other Riley Black book post as "mature content" for Ape Tits, so let's see how they feel about lesbian dinosaur sex and/or sauropod buttholes.

[mesozoicmarket]

A dinosaur tooth of an indeterminate hadrosaur, possibly Aquilarhinus palimentus from the Aguja Formation in Brewster County, Texas, United States. Aquilarhinus was previous referred to Kritosaurus and Gryposaurus. It is not entirely certain if Aquilarhinus has serrated teeth like Kritosaurus navajovius. It is possible that this tooth does still belong to some species of Kritosaurus (or Gryposaurus) just based on this characteristic.

[tyrannoninja]

Kritosaurus at a Salt Lick

66 million years ago in Late Cretaceous North America, a herd of Kritosaurus navajovius gather around a salt lick in a jungle clearing. Licking minerals from the clay here provides these hadrosaurid dinosaurs with essential nutrients such as sodium, calcium, and zinc which helps with the animals’ physical growth. It’s a behavior many animals throughout the world carry out to this day.

[antiqueanimals]

Predatory Dinosaurs of the World: A Complete Illustrated Guide. Written and drawn by Gregory Paul. 1989.

Internet Archive

[i-draws-dinosaurs]

It’s another lightbox! I actually made this one first, but I forgot about it so here it is now! A Kritosaurus, separated from its herd, crosses a sequoia bridge through the forest. The lone herbivore continues to search for the safety of its group as evening falls. Being alone in a Campanian forest at night is not a good idea.

Thank you all so much for your enthusiasm about the last lightbox post, it’s something I really enjoy doing so I’m glad y’all like seeing it too! I’ve included another ‘process’ kinda photo with this one, so you can see all the different layers that make up this piece! This one has nine, I generally keep the layer count under ten because one you get up to that point the light just doesn’t really come through the paper any more so it’s pretty much pointless. This one had the added bonus of the foam board at the bottom of the scene kinda looking like the surface of a creek, which was not intentional but I think it looks nice!

[makairodonx]

A Mexican Kritosaurus

This saurolophine hadrosaur hailing from the Cerro del Pueblo Formation (73-71 million years ago) which is part of the Sabinas Basin in Mexico, was originally described as Kritosaurus sp. by Kirkland et al. in 2006, but was later described as an indeterminate saurolophine by Prieto-Márquez et al. seven years later. This Mexican kritosaur is unique for sporting a ndistinctively curved ischium, and at 11 meters or 36 feet long, this Mexican Kritosaur was 20% larger than other species of the genus Kritosaurus, making it one of the largest saurolophines ever documented from North America. It shared its coastal wetland habitat, which spanned the southern coast of Laramidia, with other large herbivores such as fellow saurolophine Latirhinus uitstlani, the lambeosaurines Velafrons coahilensis and Tlatolophus galorum, and the chasmosaurine ceratopsian Coahuilaceratops magnacuerna.

[tsaagan]

‘Beak lizards, who have strange head ornaments.

Top: Helmet lizard and hawk lizard.

Bottom: Cone lizard and crown lizard.’

Fortidsdyr I Farver, 1957 Finnish edition

Kai Petersen Illustrated by Verner Hancke

'Most extinct animals have only scientific names, Greek or Latin. Because of that the author of the original (Danish) edition invented Danish names for the animals. Finnish versions of those names have been used in this edition except for those (very rare) cases where an animal already has a Finnish name.'

[horrible-lizards]

Kritosaurus, 1910