Name: Pisanosaurus ‭(‬Pisano’s lizard‭)‬.
Phonetic: Pie-san-o-sore-us.
Named By: R.‭ ‬M.‭ ‬Casamiquela‭ ‬-‭ ‬1967.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Ornithischia,‭ ‬Pisanosauridae.
Species: P.‭ ‬mertii‭ (‬type‭)‬.
Diet: Herbivore.
Size: Up to about‭ ‬1‭ ‬meter long.
Known locations: Argentina‭ ‬-‭ ‬Ischigualasto Formation.
Time period: Carnian of the Triassic.
Fossil representation: Partial skull and post cranial skeletal fossils.

       Pisanosaurus is easily one of the oldest ornithischian dinosaurs that are currently known to science.‭ ‬Unfortunately the holotype specimen is very fragmentary,‭ ‬and details such as the orientation of the pubic bone are still unknown.‭ ‬Despite this the basic orithopod body form can still be clearly seen,‭ ‬Pisanosaurus is a good indicator for a type of dinosaur that would become common and widespread all the way through the Mesozoic.

Further reading
-‭ ‬Un nuevo dinosaurio ornitisquio triasico‭ (‬Pisanosaurus mertii‭; ‬Ornithopoda‭) ‬de la Formación Ischigualasto,‭ ‬Argentina‭ [‬A new Triassic ornithischian dinosaur‭ (‬Pisanosaurus mertii‭; ‬Ornithopoda‭) ‬from the Ischigualasto Formation,‭ ‬Argentina‭]‬.‭ ‬-‭ ‬Ameghiniana‭ ‬4‭(‬2‭)‬:47-64.‭ ‬-‭ ‬R.‭ ‬M.‭ ‬Casamiquela‭ ‬-‭ ‬1967.


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