Blog Archive
Before the world showed some backbone…there were the invertebrates!
Filed under: Announcement, Ordovician, trilobite

Quick Bite Field Guide: Terror Bird or Gentle Giant?
50 million-years ago, the heir to Tyrannosaurus stalked the forests of ancient Europe and North America, snapping up the tiny ancestors of horses, cows, and wolves in its colossal meat-cleaving beak. Gastornis was a six-foot-tall, flightless bird and the king of the food chain…or that’s what we thought. For decades paleontologists looked at the huge, parrot-like head and thought the giant bird m …
Filed under: Birds, Carnivory, Cenozoic, Comparative Anatomy, Ecology, Eocene, Europe, Field Guide, Fossils, Herbivory, Isotopes, North America, Paleontology

Quick Bite Field Guide: The Alien Turtle and Ancient Color
Meet Alienochelys selloumi, a giant, snorkel-nosed turtle with powerful, shell-crushing plates in its massive beak! The distant relative of the largest turtle alive today, the leatherback sea turtle, Alienochelys swam the ancient ocean of North Africa at the very end of the Age of Dinosaurs (the Late Cretaceous). It was found in the same rocks as Ocepechelon, the “whale turtle” discussed in our fi …
Filed under: Africa, Cretaceous, Field Guide, Fossils, Functional Morphology, Marine Reptiles, Paleontology, Reptiles, Turtles, ocean, sea turtle

Episode 10 Field Guide: The Hobbit – An Unexpected Discovery
Hobbits! Dragons! Weird elephants and ancient mysteries! It’s the stuff of literary and box office gold. And it turns out it’s the stuff of prehistory, too! In 2004 a group of paleontologists working on the island of Flores, a part of the Indonesian archipelago, discovered the bones of small people in a cave called Liang Bua. The bones represented several individuals that were only 3’ 6” tall (A l …
Filed under: Africa, Asia, Biogeography, Cenozoic, Field Guide, Flores, Fossils, Homo erectus, Human evolution, Indonesia, Lord of the Rings, Mammals, Paleoanthropology, Paleontology, Pleistocene, hobbit, human

Quick Bite Field Guide: The Giant before the Tyrant!
In the last episode of Past Time, we featured Lythronax, the oldest-known North American tyrannosaur and a close relative of Tyrannosaurus rex. But tyrannosaurs weren’t the only big carnivores to tromp through the Mesozoic of North America. Before the tyrant lizards were huge, there was another giant terrorizing the American West: Siats! Named for a Ute mythological giant, Siats was a bus-sized ca …
Filed under: Carnivory, Cretaceous, Field Guide, Fossils, Neovenatoridae, North America, Paleontology, Siats, Systematics, T. rex, Tyrannosarus, dinosaur, theropod, tyrannosaur

Episode 9 Field Guide: New Relatives of Tyrannosaurus rex!
Tyrannosaurus rex is a dinosaur celebrity, a villain in most dinosaur movies and documentaries, but where did the massive beast come from? On November 6, 2013, a team of paleontologists including our expert in this episode, Dr. Randy Irmis from the University of Utah and the Natural History Museum of Utah, published two new skeletons of Tyrannosaurus’s close kin: Teratophoneus and Lythronax. The s …
Filed under: Cretaceous, Dinosaurs, Ecology, Field Guide, Fossils, Laramidia, Lythronax, New species, North America, Paleontology, Systematics, T. rex, Tyrannosaurus, Utah, carnivore, theropod