The Collecta Miragaia Dinosaur Model Reviewed
Fossils of European Stegosaurs are very rare. What fossil material
that has been excavated provides evidence of a number of Stegosaur
genera from the Jurassic, but most of the specimens are incomplete and
highly fragmented. Little is known about the evolution of the
Thyreophora (armoured dinosaurs) in Europe. However, over the last few
years a number of better preserved and more complete Stegosaur fossils
have been discovered in western Portugal. One of these recent fossil
discoveries, that of a dinosaur that came to be known as Miragaia has
inspired Collecta to make a replica of this armoured dinosaur.
Little is Known about European Stegosaurs
In contrast to most other European Stegosaur remains, much of the
front part of the skeleton of this Late Jurassic Stegosaur is known.
Paleontologists have excavated at least two specimens, one adult, one
sub-adult from the same dig site in Upper Jurassic strata attributed to
the Lourinha Formation of western Portugal. Elements of the skull have
been discovered and from this scientists have been able to reconstruct
this dinosaur. Collecta, the dinosaur model makers, have used the
scientific data to produce a colourful, not-to-scale dinosaur model of
this Portuguese herbivore.
The First Stegosaur Skull Discovered in Europe
Skull material includes the premaxilla, maxilla and the naris post
elements that comprise the back of the skull. Post cranial material
comprises of shoulder bones, most of the front legs, neck bones and a
number of armoured plates. Miragaia seems to have had a remarkably long
neck for a Stegosaur. It had an estimated fifteen cervical vertebrae
(neck bones), more than long-necked Sauropods such as Diplodocus and
Apatosaurus.
The Miragaia Dinosaur Model
The Miragaia model from Collecta shows this long neck in fine detail.
In fact the head and the neck make up about twenty-five percent of the
length of the entire model. Scientists have debated how flexible the
neck of Miragaia was, ironically the plastic compound used to make this
replica has left the model with a rather bendy neck, but this does not
detract from the overall quality of the model.
The head is narrow and the front legs are smaller than the hind legs, a
trait seen in most other Stegosaur genera. The model has been painted
light brown, with a red flash on the throat pouch. The armour plating
and the tail spikes are painted in a dark green colour, mimicking the
colouration of the top of the spine and down to the tail. The model has
two shoulder spikes, these are large, more than two centimetres in
length and painted bright red.
Armour Embedded into the Skin
The Miragaia dinosaur model
has been given a rough skin texture, to give the impression that this
dinosaur had large scales, with some dermal armour embedded along the
flanks. Scientists are not sure what the tail of this dinosaur was like.
There have been no fossils of the back-end of Miragaia found. The model
makers at Collecta have given their replica a row of spines running
back from over the hips to the tip of the tail.
The model's overall length is nineteen centimetres approximately,and
it is a welcome addition to the Collecta model range, one that will no
doubt delight fans of Stegosaurs.
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