Prehistoric Crewneck Sweatshirts

Kelenken guillermoi is a species of giant flightless predatory birds of the extinct family Phorusrhacidae, or "terror birds". Phorusrhacids, colloquially known as terror birds, are an extinct clade of large carnivorous flightless birds that were the largest species of apex predators in South America during the Cenozoic era; their temporal range covers from 62 to 1.8 million years (Ma) ago.

In the 1920s Captain Marshall Field funded two expeditions to South America which were undertaken by the Field Museum of Natural History in Chicago, Illinois; these expeditions were launched under the hopes of finding fossils of mammals and other animals from the Cenozoic Era. In 1926, during the second expedition, a team was searching the Ituzaingo Formation in northern Argentina when they came across the remains of three animals thought to be never before discovered species of ancient marsupial. It was roughly 4.9 feet in length and weighed around 330 pounds and it lived during the Late Miocene to Pliocene, roughly 9 to 3 million years ago.

A land dwelling prehistoric relative of modern day crocodiles described scientifically in 1959, head to tail it measured some 23 feet in length and weighed over 1,000 pounds. It roamed what would eventually become known by humans as North Western Argentina, and it shared its environment with a wide variety of other creatures, such as early dinosaurs like Herrerasaurus and Eoraptor, as well as massive dicynodonts like Ischigualastia, Pound for pound it appears to have been the largest predator in the region it inhabited, but this weight and its likely cold-blooded metabolism likely slowed it down. Despite this it was more than fast enough to catch up with prey of that era.

This shirt has been waiting 65 million years for you!

A scene of unlikely proportions created during my twitch stream, where viewers give ideas for drawing prompts.

the story of a prehistoric honey picker

Prehistory, also known as pre-literary history, is the period of human history between the use of the first stone tools by hominins c. 3.3 million years ago and the beginning of recorded history with the invention of writing systems

A quick design.

LEARN YOUR MEAT CUTS!

You love dinosaurs, unicorns and fantasy creatures? Sounds like you need to purchase this funny Dude Did You Eat The Last Unicorn hilarious comedy tee or buy it as a gift for a friend who loves T-Rex dinosaurs, history and prehistoric animals. This T-Shirt features funny T-Rex dinosaurs and a fantasy unicorn and is designed for you!

T Rex Dinosaur Playing an Electric Guitar

Inspired by the new show by Gendy T.

A whimsy design illustrating Dinosaurs alphabetically.

Dino design

mini dinosaurs! love that.

MONSTERZILLA MASH

Dinosaur

A long time ago he sacrificed himself for the human race to prosper in the great hard battle against the Neanderthals Demons. He is Jurassic Jesus!

I'm sure everything will work out!

Show your love for your favorite classic Saturday morning TV show with this unique design!

Spiral inspired by prehistoric rock art.

Dino in a party hat!

The most iconic Jurassic Park quote

Hope you like it.

A vintage illustration of a collection of prehistoric fossils and dinosaur bones.

A child of the 90s!

You love forest and jungle animals,fantasy and prehistoric creatures? Purchase this Unicorn Riding T-Rex Party Dinosaur Colorful Rainbow tee for birthday,Christmas,party or buy it as a gift for kid,friend,child,son,daughter,dinosaur lover or unicorn lover.

Inspired by the traditional woodblocks prints of the Edo period and dinosaurs.

My painting, Jurassic Night, in beautiful full saturated color on everything from shirts to mugs to pillows!

Please, for more visit my site http://goo.gl/AAj651 and 'like' me on Facebook https://goo.gl/YJANFx Hugs!

You bet Jurassican!

Allosaurus, Brachiosaurus, Kentrosaurus, Gargoyleosaurus, Dryosaurus, Stegosaurus, Ceratosaurs, Diplodocus, Rhamphorhynchus, Pterodactylus, Aurornis, Guanlong, Elasmosaurus, Liopleurodon, Excalibosaurus, Dakosaurus, Hybodus, Leedsichthys, Castorocauda, Prosalirus, Marmorerpeton

A cute, colorful purple dinosaur, floating away with red, yellow and blue balloons.

Indulge in the whimsy of this pink dinosaur design, featuring a coffee-loving creature declaring, “Coffee first, then I destroy.” Embrace the humor and charm of this fantasy illustration, perfect for caffeine enthusiasts and dinosaur lovers alike. Let this quirky design add a playful touch to your style.

Estemmenosuchus mirabilis was a genus of therapsid that lived during the Middle Permian (267 million years ago). Found in what is now the Perm region of Russia in the 1960s, both of the currently recognized species: E. uralensis and E. mirabilis are most recognizable from their distinctive knobby, antler-like facial structures; these structures are in face where they get their name which means "crowned crocodile."