Decuriasuchus

Name: Decuriasuchus ‭(‬Legion of ten crocodile‭)‬.
Phonetic: De-cu-re-ah-su-kus.
Named By: M.‭ ‬A.‭ ‬G.‭ ‬Franca,‭ ‬J.‭ ‬Ferigolo‭ & ‬M.‭ ‬C.‭ ‬Langer‭ ‬-‭ ‬2011.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Paracrocodylomorpha,‭ ‬Loricata.
Species: D.‭ ‬quartacolonia‭ (‬type‭)‬.
Diet: Carnivore.
Size: Roughly up to about‭ ‬2.5‭ ‬meters long.
Known locations: Brazil‭ ‬-‭ ‬Santa Maria Formation.
Time period: Ladinian of the Triassic.
Fossil representation: Remains of ten individuals,‭ ‬including three almost complete skulls and partial post cranial skeletal remains.

       Named in‭ ‬2011,‭ ‬Decuriasuchus seems to have been like many predatory archosaurs in appearance,‭ ‬moderate in size,‭ ‬and capable of taking down similar sized animals.‭ ‬What has made palaeontologists sit up take notice however is that when Decuriasuchus was first found they didn’t find just one,‭ ‬but nine individuals buried together,‭ ‬with a tenth nearby.‭ ‬Even more startling is that they all appear to have died together‭ ‬at the same time‭ ‬and not over a period of months and years as would be expected if this were a predator trap.‭ ‬Further,‭ ‬no other fossils of other animals have been found,‭ ‬suggesting that they did not all come together to feed on a carcass.‭ ‬What Decuriasuchus represents is perhaps one of the earliest signs of gregarious behaviour in archosaurs‭

Further reading
-‭ ‬Associated skeletons of a new middle Triassic‭ “‬Rauisuchia‭” ‬from Brazil.‭ ‬-‭ ‬Naturwissenschaften.‭ ‬-‭ ‬M.‭ ‬A.‭ ‬G.‭ ‬Franca,‭ ‬J.‭ ‬Ferigolo‭ & ‬M.‭ ‬C.‭ ‬Langer‭ ‬-‭ ‬2011.



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