This geologic period included the first appearance of the Glomerula tube worms of the Sabellidae family, as well as the first appearance of reef-building heterodont bivalves called rudists. The extinction event preceding this period completely wiped out the conodonts, and this period also included a smaller extinction event called the Toarcian turnover. Fossils in the Solnhofen Limestone and the (*) Morrison Formation date from this period. During this period, the supercontinent of Pangaea began to break up into Laurasia and Gondwana, and one could witness the Allosaur
This geologic period included the first appearance of the Glomerula tube worms of the Sabellidae family, as well as the first appearance of reef-building heterodont bivalves called rudists. The extinction event preceding this period completely wiped out the conodonts, and this period also included a smaller extinction event called the Toarcian turnover. Fossils in the Solnhofen Limestone and the (*) Morrison Formation date from this period. During this period, the supercontinent of Pangaea began to break up into Laurasia and Gondwana, and one could witness the Allosaurus engage in thrilling battles with the Stegosaurus. For 10 points, name this period of the Mesozoic era that was followed by the Cretaceous and preceded by the Triassic.
This geologic period included the first appearance of the Glomerula tube worms of the Sabellidae family, as well as the first appearance of reef-building heterodont bivalves called rudists.
Jurassic period