Grallator variabilis, dinosaur track (negative) Styracosaurus 8 m in height and

8 m in height and a weight between 1 and 2

The pectoral fins were narrow and pointed

The teeth were so closely packed that they formed a comb

Over time a new tooth would grow from the old tooth socket

Fossils have been discovered in Spitsbergen

Grallator variabilis, dinosaur track (negative) Styracosaurus 8 m in height andThe study of fossilized footprints, Ichnology, has become an important branch of paleontology. Footprints are trace fossils. They are considered trace fossils because they contain no fossil material, only the impressions left by the animal which made them. It is often difficult to determine with certainty which animal made a given print and therefore they are usually attributed to a group rather than a specific animal. Grallator is an ichnogenus,