Mesozoic Seas

Paleozoic Diorama Edicara Burgess Shale Ordvician Silurian Devonian Carboniferous Triassic Sea Early Jurassic Sea Late Jurassic Sea Early Cretaceous Late Cretaceous Mesozoic Sea More Diorama Before the Dinosaurs The Dinosaurs After Dinosaurs The Cretaceous The Jurassic The Triassic Gondwanaland Laurasia Prehistoric Seas Diorama Pages Saurian Safari

from the Dinosaur Collector update 012508

While in the Proterozoic life exists in the sea the first good fossils come from the Vendian.  The seas burst into life in the Paleozoic Cambrian Explosion, Ordovician, Silurian, and Devonian at the end of the Permian there was a major change in the worlds oceans.  The last of the trilobites had  become extinct, brachiopods are now a found primarily in extreme environments like cold water and caves.  Reef building stops and the corals from from the Paleozoic become extinct.  By the Middle Triassic the dominate Paleozoic Seas fauna were either extinct or only existed as a few species.  The modern sea fauna largely evolves replacing the community of stationary filter feeders characteristic of the Paleozoic to one dominated by active swimmers.  Diaspid reptiles have often returned to sea, the latest being the Marine Iguana.  Their side to side walking motion on land converts easily an efficient fish like motion for life in the water.   The Mesozoic starts in the Triassic and ends with Cretaceous.  Not everything big and dead is a dinosaur.

Dino Boyz Sam and Taliesin with the Under Sea action set.

Use the Links to find the Diorama you are interested in.

PALEOZOIC BEFORE THE DINOSAURS MESOZOIC THE DINOSAURS CENOZOIC AFTER THE DINOS SEAS OF THE MESOZOIC DINOSAUR COMPANIES NEWS RECENT UPDATES DINOSAUR COLLECTOR HOME OTHER SITES AND REFERENCES Sea Life Diorama Early Jurassic Triassic Seas Late Jurassic Seas Cretaceous Seas Paleozoic Sea Burgess Shale Edicara Seas Prehistoric Sea

Prehistoric Maine figures have never been common.  The MARX company produced a Kronosaurus that was copied by MPC and other toy companies.  The figure was pretty inaccurate even for the 60's.  The SRG metal figures that were sold in Museum gift shops produce a Mosasaur and a Dunkleosteus figure.  Some small headed long necked plesiosaurs and nothosaurs were also produced by minor toy makers.  The Starlux, Invicta , Schleich, Bullyland, Kinto and Safari companies included prehistoric sea creatures in their lines.  In the last few years Play Vision, Kaiyodo Dino Tales and Yowies series have produced an explosion no only in number of figures but in the species represented.  The Walking with Dinosaurs Documentary made the pliosaur Liopleurodon a house hold name and a popular figure.

The Triassic Seas were initially populated by the survivors of the Permian extinction, the first ichthyosaurs, Grippia and  Utatsusaurus are found in the Early Triassic.  Placodonts and nothosaurs appear in the fossil record in the Early Triassic.  By the Middle Triassic reefs were once more being built, Tanystropheus is established as an aquatic predator and the new  seas fauna began to take on a modern character .  The Nothosaurs relatives the Plesiosaurs develop in the Late Triassic.                        

Click on the Nothosaur LINK above to go the Triassic Seas Diorama.

In the Early Jurassic, Pangaea breaks up and the sea expands  to cover many Triassic Deserts.The Jurassic Seas see the flowering of the ichthyosaurs and plesiosaurs. There were two major groups of plesiosaurs.  The long necked small headed plesiosaurs ate smaller sea creatures.   The pliosaurs get really big the size of modern whales.  Modern fish (telosts), sharks and ammonites populate the sea.  Several members of the crocodile family go to sea.

Click on the ichthyosaur LINK to go the Late Jurassic Seas Diorama.

In the Cretaceous new reptiles take to the seas.  Some birds will give up flight to become dedicated swimmers.  The Mosasaurs relatives of today's monitor lizards go to sea.   They get big and give birth to snakes who may be the only descendants of the great Mesozoic aquatic diaspids to leave descendants. Turtles made it out of the Mesozoic also but they are anaspid reptiles.      

Click on the mosasaurus LINK to see the Cretaceous Seas Diorama.

Use Site A and Site B graphic links to return to the respective home pages for more diorama and figures.