Scutellosaurus ‭(‬Little shielded lizard‭)

Short Info

Scutellosaurus ‭(‬Little shielded lizard‭)

Phonetic : Scu-tel-loe-sore-us

Named By : Edwin Harris Colbert‭ ‬-‭ ‬1981

Diet : Herbivore

Size : Estimated 1.2 meters long

Type of Dinosaur : Armoured Dinosaur

Type Species : S.‭ ‬lawleri‭ (‬type‭)‬

Found in : USA‭ ‬-‭ ‬Arizona‭ ‬-‭ ‬Kayenta Formation

When it Lived : Early Jurassic, 205-202 million years ago

Scutellosaurus (/sku:,teloU’so:r@sor skoo-TEL-oh SOR-@s) is the name given to a species belonging to the thyreophoran ornithischian dinosaurs that lived for about the age of 196 million in the first part of the Jurassic Period in what is today Arizona, USA. It is part of Thyreophora which is the armoured dinosaurs. Its closest relatives could be Emausaurus and Scelidosaurus another armored dinosaur that was mostly quadrupedal in comparison to bipedal Scutellosaurus. It is among the first representatives of armored dinosaurs, and is the most basal model that has been discovered to today. Scutellosaurus was tiny, light-built herbivore that lived in the ground and could reach approximately 1.2 millimeters (3.9 feet) in length.

The Holotype specimen of Scutellosaurus Lawleri (MNA V175) was discovered in the West Moenkopi Plateau locality in the Silty Facies Member of the Kayenta Formation located situated in Coconino County, Arizona on the land belonging to the Navajo Nation. The specimen was found and taken from David Lawler in red claystone sediments that were laid down in the Sinemurian phase in the Jurassic period, which was about 200 million years ago.

The Holotype specimen was described in Edwin Colbert based on the following partial preserved premaxillae teeth and a right maxilla having seven teeth, a left maxilla having five teeth, teeth that have missing posterior parts one left dentary has the number of teeth 18; a right-sided dentary that has 10 teeth and other skull fragments 21 presacral vertebral centers as well as a number of partial and complete neural arches and spines five sacral vertebrae and 58 caudal vertebrae that have neuro arches and chevrons, a few ribs that are not complete and scapulae. Both coracoids that are partially preserved ilia, fragments from the pubic bones as well as of the ischia. They also have both humeri the distal portion of the left radius the distal and proximal ends of the left radius, and ulna, fragments from the manus. They include both femoras, the right tibia most proximal part of the fibula right the right astragalus left tibia and the left fibula, a variety of bones from the pedes, which could include a distal tarsal bone more than 300 osteoderms.

Source: Wikipedia