Cretaceous Period

Aerotitan

Aerotitan was a pterosaur which lived in South America during the late Cretaceous Period 70 million years ago. The only fossil of this creature, consisting of just the front end of the upper jaw, was discovered in the early 2000s… Read More ›

Sulcusuchus

Sulcusuchus was a small polycotylid plesiosaur which lived off the coast of Argentina during the late Cretaceous Period around 70 million years ago. The fossils of this animal (collection ID code: MLP 88-IV-10-1) were first discovered 25 km north of… Read More ›

Tropeognathus

Tropeognathus, meaning “keel jaw”, was a large pterosaur which lived in Brazil during the middle of the Cretaceous Period 112 million years ago. Tropeognathus was a member of a group of pterosaurs called the anhanguerids, named after the genus Anhanguera…. Read More ›

Uktenadactylus

Uktenadactylus was a genus of pterosaur with a possible 25-30 foot wingspan which lived in North America and Europe during the early and middle Cretaceous Period 125-100 million years ago. In 1992, a man named Chris Wadleigh found the front… Read More ›

Wellnhopterus

Wellnhopterus was a pterosaur which lived in Texas during the late Cretaceous Period 70-69 million years ago. On March 22-29, 1986, a paleontological excavation led by Dr. Wann Langston Jr. was underway at a place called Pterodactyl Ridge within the… Read More ›

Aetodactylus

Aetodactylus, meaning “eagle finger”, was a pterosaur which lived in Texas during the middle Cretaceous Period 96 million years ago. In 2006, workers at a construction site at Joe Pool Lake in Mansfield, Texas found a fossilized lower jaw from… Read More ›

Alamodactylus

Alamodactylus was a pterosaur which lived in Texas during the late Cretaceous Period 90 million years ago. A handful of fossils of this animal were found within the Atco Formation, which contains rocks dating to the Coniacian and Santonian Stages… Read More ›

Pteranodon

Pteranodon, whose name means “winged and toothless”, was a pterosaur which inhabited the center of North America during the late Cretaceous Period 86-79 million years ago. Fossils of this iconic prehistoric flying reptile have been found in South Dakota, Kansas,… Read More ›

Quetzalcoatlus

Quetzalcoatlus was a massive pterosaur which lived in North America at the end of the Cretaceous Period 72-66 million years ago. Fossils of it were first discovered in 1971 within the Javelina Formation of Big Bend National Park, Texas within… Read More ›

Alamosaurus

Introduction When one hears the word “dinosaur”, one often imagines the sauropods – the large long-necked long-tailed plant-eaters which came to dominate Earth’s landmasses during the Jurassic Period. The sauropods died out in North America at the end of the… Read More ›