Tuesday, December 15, 2015

The Giving of December. Mussaurus

 When first described in‭ ‬1979,‭ ‬Mussaurus was only known from juvenile individuals,‭ ‬and until‭ ‬2013‭ ‬this was supposedly the case.‭ ‬However in‭ ‬1980‭ ‬the adult were actually described,‭ ‬they had just been classed under the genus Plateosaurus.‭ ‬With a re-evaluation of these in‭ ‬2013,‭ ‬Mussaurus is also known from adult remains,‭ ‬and the adult size of this sauropodomorph dinosaur is estimated to be about three meters.‭ ‬Prior to this discovery the genus Coloradisaurus was speculated as being the possible adult form.
       As a sauropodomorph dinosaur,‭ ‬living in the late Triassic,‭ ‬Mussaurus is thought to have been primarily if not exclusively an eater of plants.‭ ‬The skulls of juveniles are noted as being shorter but higher in proportion than adults with larger than usual orbits‭ (‬eye sockets‭)‬.‭ ‬These are common juvenile features of dinosaurs,‭ ‬and they reflect how the skeleton of juveniles had to form in order to fit inside the eggs as the embryos developed.
       Mussaurus represents a possible transitional form that links sauropodomorphs with sauropods.

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