#mosasaurs

[corvidcasette]

Limelight

Fingerpainted Ibispaint X,

Thur 21 Dec 2023

A lone megapterygius (newly discovered mosasaur) basks in the limelight while exploring an underwater cavern. A quick concept that I decided to blotch out for fun, I may attempt it again in the future

#art #illustration #paintings #sciart #paleoart #paleontology #dinosaurs #monsters #birds #kaiju #mosasaurus #aquaticreptile #megapterygius #mosasaurs

[knuppitalism-with-ue]

Results from the #paleostream

Synemporion, Megapterygius, Neosclerocalyptus and Trachytheuthis.

#sciart #paleoart #paleostream #palaeoblr #mosasaurs #jurassic #squid #cephalopod #bat #Synemporion #glyptodont

[antiqueanimals]

"In the same Upper Cretaceous seas, together with the Elasmosaurs, lived the carnivorous lizard Tylosaurus, which was over 30 feet long. Fights to the death between these giants were no doubt a frequent occurrence."

Prehistoric Sea Monsters. Written by Dr. Josef Augusta. Illustrated by Zdeněk Burian. 1966.

Internet Archive

#prehistoric #prehistoric reptiles #plesiosaurs #elasmosaurus #mosasaurs #tylosaurus #Zdeněk Burian

[a-dinosaur-a-day]

obviously I can't include everything. Rip to the various groups I was forced to leave out, including Mesosaurs, my beloveds.

#tetrapods #marine reptiles #marine mammals #penguins #mosasaurs #plesiosaurs #cetaceans #sirenians #pinnipeds #desmostylians #thalattosuchians #dyrosaurids #pliosaurs #turtles

[tsaagan]

Picture 556. Mosasáurus. 12 m. long. Upper-Cretaceous. Europe. N. America. New Zealand.

The last period of the Cretaceous is characterized by snake lizards (Mosasáuria, picture 556), which were beasts equipped with a flat swimming tail. They had the ability to bend their lower jaw at the joint in the middle and thus expand their maw. Sea turtles are also known from this period.

ELÄINOPPI Oppikouluja varten, Schulman - Krogerus - Nordström, 1920  

#mosasaurus #mosasaurs #not dinosaurs #eläinoppi oppikouluja varten #books

[makairodonx]

Tylosaurus proriger with company

#paleoart #mosasaur #mosasaurs #mosasaurid #tylosaurus #niobrarachalk #late cretaceous #xiphactinus #dolicorhynchops #styxosaurus #protostega #western interior seaway #paleontology #paleontography

[fishsfailureson]

Various rw/paleoart doodles

#art #my art #digital art #sketches #paleoart #rain world fanart #rain world #rain world downpour #rw five pebbles #rw the rivulet #rw the saint #rw the gourmand #paleontology #palaeoblr #dinosaurs #sinosauropteyx #velociraptor #mosasaurs #tylosaurus

[nazrigar]

Mermay 2023 - Paleontology Based Merfolk

For the final proper batch of Merfolk for this Mermay, did a series of Paleontological themed Merfolk! They also form the foundations of many aspects of Merfolk culture in Beast Fables.

Ixandyr the Sea Lord - Mosasaurus

- Essentially Alexander the Great, but oceanic lizard-man. The man responsible for taming the seas, creating an adminsitrative system that lasted even after his empire was broken up and gone, and waged war against the surface world.

Keresa - Megalodon

- The greatest guardian to ever live, who could single-handedly stop a raid of some of the baddest merfolk to have ever lived. Also a selfless, kind sould beneath the giant muscles and sharp teeth.

Elun the Cleared-Eyed - Odobenocetops

- The guy that made modern merfolk religion as we know it. To him, all things are expressions of the Goddess, from the sands beneath to the water

Runihura - Jaekelopterus

The biggest of the big, the raider of raiders, comparable to even Keresa in size and ferocity.

Kuriosus - Walliserops

The first naturalist of ‘em all. His books are remarkably well preserved!

Kosumi and 'Awha'y, Last of the Primevals - Sabertooth Salmon and Semirostrum

The very last merfolk, without whom, many wouldn’t even KNOW the names of those that came before.

#mermay 2023 #mermaids #merfolk #mosasaurs #mosasaurus #megalodon #beast fables #odobenocetops #eurypterid #trilobite #creature design #character design #worldbuilding #fantasy #mermay

[phantomplaguedoctor]

*Hands you a tylosaurus* *hands you a mosasaurs* *hands you a platecarpus* *hands you a halisaurus* *hands you a plotosaurus* *hands you a yaguarasaurus* *hands you a dallasaurus* *hands you an aigialisasaurus* *hands you an acteosaurus* *hands you an adriosaurus* *hands you an aigialosaurus* *hands you an amphekepibis* *hands you an amphorosteus* *hands you an ancylocentrum* *hands you an angolasaurus* * hands you a baptosaurus* *hands you a baseodon* *hands you a-

#Mosasaurs #paleoblr #paleontology

[museaumofnaturalhistory]

Marine Food Chain : Hesperornis, Xiphactinus, Tylosaurus - by ABelov2014

#natural history #paleoart #prehistoric life #marine predators #tylosaurus #hesperonis #prehistoric oceans #mosasaurs

[i-draws-dinosaurs]

So watching PP yesterday was the first time I learned that mosasaurs were squamates (possibly literally lizards? I wasn't clear). Is that also true of other marine reptiles like plesiosaurs as well? I somehow always thought they were an entirely separate order of Reptilia.

Yep, being squamates means that mosasaurs are literally lizards! There's a bit of disagreement about where they sit in the lizard family tree but they're usually placed around the varanid/snake area, some researchers have explicitly classified them as varanids but that's questionable.

On the other hand, other marine reptiles are from much older lineages unrelated to lizards that are now totally extinct. Plesiosaurs and pliosaurs come from an ancient group of reptiles called Sauropterygians ("reptile flippers") that evolved in the early Triassic, and also includes weird Triassic groups such as nothosaurs and placodonts!

All the major sauropterygian groups! Including Parahenodus (a placodont), Ceresiosaurus (a nothosaur), Aristonectes (a plesiosaur) and Brachauchenius (a pliosaurid plesiosaur). Via Wikimedia Commons.

Ichthyosaurs are in their own weird little group from the early Triassic as well, called ichthyosaurimorphs! One of the earliest representatives of the group is called Cartorhynchus, which probably looks like this:

(Art by Nobu Tamura)

In fact, the only other group of marine reptiles aside from mosasaurs that belong to a group of reptiles that are alive today are crocodiles! From the Early Jurassic to Early Cretaceous, a group of marine crocodylomorphs called Thalattosuchians lived in the oceans all around the globe! They were actually just a well adapted to marine life as mosasaurs were, even evolving tail flukes!

(art by Dmitri Bogdanov)

#paleontology #mosasaurs #plesiosaurs #ichthyosaurs #thalattosuchians #marine reptiles #paleoart #palaeoblr #fossils #prehistoric planet

[antiqueanimals]

Mosasaurus. Animal Ghosts. Edited by Claudia Clow. Illustrated by Walt Disney Productions. 1971.

Internet Archive

#prehistoric #prehistoric reptiles #prehistoric marine life #mosasaurs #mosasaurus

[a-dinosaur-a-day]

Potentially dumb question but how do Ichthyosaurs and Pliosaurs fit into everything? Are they more closely related to crocodiles or birds?

And (I'm hesitant to ask this but) are they technically fish in the same way all mammals and thus whales could be argued to be technically fish? (If I've now accidentally made this ask cursed, feel free to delete).

So we don't know where Ichthyosaurs or Plesiosaurs (which includes Pliosaurs) go, exactly, but they aren't more closely related to crocs or birds! They might be close to turtles, or not close to any living reptile group at all. They're an enigma

Mosasaurs, however, are straight up lizards. Like actual giant lizards. We don't know whether they're closer to snakes or monitor lizards, but they're lizards

And yup, aaaaaall of them are fish

#ichthyosaurs #plesiosaurs #mosasaurs #marine reptiles #prehistoric life

[dragonthunders01]

Concept idea of a durophagous porpoise-like mosasaur from a Non-KPg project that long ago die out, it was suppose to become one of many innovative mosasaurs forms that thrived in a earth where these marine reptiles thrived for another 65 million years, chubby thunniform in shape unlike its ancestors, with a jaw strong enough to break through bivalves and other shelled prey.

#speculative zoology #alternative evolution #mosasaurs #speculative biology

[tylosaurusproriger]

Mosasaur casts from the Mountain America Museum of Ancient Life at Thanksgiving Point in Utah.

#clidastes #tylosaurus #mosasaurs #archelon #ammonites #photo #fossils

[greenfrog04]

Three-dimensional dental microwear in type-Maastrichtian mosasaur teeth (Reptilia, Squamata)

Published 9th November 2023

Researchers use three-dimensional dental microwear texture analysis on mosasaurs and extant reptiles to provide quantitative dietary constraints for Type-Maastrichtian mosasaurs and assess levels of niche partitioning between taxa by analysing and comparing teeth characteristics.

(a)Type-Maastrichtian area in the southeast Netherlands and northeast Belgium with the most important quarries indicated, (b) The five analysed mosasaur taxa: Mosasaurus hofmanni, Prognathodon saturator, Prognathodon sectorius, Plioplatecarpus marshi and Carinodens belgicus.

Principal component textural analysis of three-dimensional microwear textures in extant reptiles and mosasaurs.

Source:

#paleontology #fossil #prehistoric #extinct #science #mosasaurus #mosasaurs