Xenacanthus, meaning “strange spine”, was a 3 foot long shark-like freshwater fish which lived in North America, South America, Europe, and Asia from the second half of the Carboniferous Period to the end of the Permian Period, approximately 323-251 million… Read More ›
Orthacanthus, meaning “straight spine”, was a 10 foot long freshwater shark-like fish which lived during the late Carboniferous Period and early Permian Period roughly 315-275 million years ago. The genus Orthacanthus is divided into twelve different species, two of which… Read More ›
Synechodus was a genus of prehistoric saltwater shark which lived from the early Permian Period until the late Eocene Epoch of the Paleogene Period, 290 to 37 million years ago (Ivanov 2005, pages 127-138). Fossils of this animal reached around… Read More ›
NOTE: This article was originally published on May 4, 2022. On December 30, 2025, it was updated and re-uploaded. Polyacrodus was a genus of prehistoric shark, composed of several species, with fossils found in North America, South America, Europe, Asia, and… Read More ›
Well, it was that time of year again! Every April or so, at around the time of Easter, the Garvies Point Museum and Preserve, located in Glen Cove, Nassau County, New York, holds it annual “Dinosaur Day”. This is one… Read More ›
There’s been a lot of talk recently on David Peters’ blog “The Pterosaur Heresies” (http://pterosaurheresies.wordpress.com/) on early synapsids – vertebrate tetrapods with one hole in the skull behind the eye. I find this interesting since, as you can tell from… Read More ›
DINOSAURS AND BARBARIANS 