-Size: 8&¾"L x 4&½"W x 3&¼"H
-Species: Varanus komodoensis
-Notes: Komodo dragons are the heaviest and longest of the world's lizards growing to a length of 10 feet and weighing upwards of 300 pounds. Their skulls are very similar to the extinct aquatic reptiles known as mosasaurs. Mosasaurs and monitor lizards are not closely related but belong to the subclass Diapsida with origins about 300 m.y.a. during the late Carboniferous Period. Monitor lizards are related to Lepidosauria, which emerged near the end of the Paleozoic 250 m.y.a. The genus Varanus first appeared 40 m.y.a in Asia. They migrated to Australia when it collided with Southeast Asia about 15 m.y.a. A second lineage evolved and moved throughout Australia and the Indonesian archipelago approximately 12 m.y.a. This lineage retains a prominent presence today. The Komodo dragon differentiated from its earliest Australian ancestors about 4 m.y.a.. They were able to migrate to their present range on the Indonesian islands of Flores, Rinca and Gila Motang and finally to Komodo Island about 10,000 to 20,000 years ago, when sea levels were lower during the last ice age. 2-part skull (separate cranium & jaw).
-Size: 8"L x 5"W x 3&½"H -Species: Osteolaemus tetraspis -Notes: The dwarf crocodile is named for the interesting bony texture of its skull (Osteolaemus: 'bony throat'). It is the smallest of the crocodilians, growing up to lengths of 5-6 feet. Living as long as 100 years, this nocturnal reptile is found only in...
-Size: 3"L x 2&½"W x 1&½"H -Species: Heloderma suspectum -Notes: The Gila monster is a large lizard native to the southwestern portion of the North American continent. This skull is cast from a large and old specimen with excellent teeth and epidermal knobs. It can be found in terrestrial arid areas, deserts and dry...
-Size: 2½"L x 2"W x 1&¼"H -Species: Sphenodon punctatus -Notes: Restricted to islands off the coast of New Zealand, the highly protected tuatara has remained virtually unchanged for some 130 million years. It is the sole survivor of a reptilian order which became virtually extinct some 70 million years ago and is now...