Blogs & Videos: Trilobites

The Trilobite Paradoxides

The fossils of a large trilobite called Paradoxides are found in North America, Europe, and Africa, They crawled along the seafloor during the Cambrian Period, 510 million years ago, but not off the coast of North America or Europe. They lived in the shallow waters off the coast of a small continent that no longer exists called Avalonia by geologists.

Science at FMNH : Ep. 22 - Dinosaur Body Size and Environment

Living terrestrial vertebrate animals tend to be bigger in size in polar regions than animals in warm climates. This principle could be one explanation of why Dr. Makovicky and Dr. Smith are finding many Jurassic vertebrate fossils in Antarctica that are larger than their close relatives else where in the world.