Tratayenia rosalesi
We don't know, but it may be that ALL raptors had feathers or at least protofeathers. So I drew Tratayenia with those protofeathers. It may have been covered only with scales, but raptor dinos have been found where there were feather impressions in the rock around the fossilized bones.
Tratayenia had a rather long flattened snout compared to T. rex or Allosaurus. It may have been related to the other largeer Theropod dinos that appeared later in South America, like Gigonatosaurus or maybe Carcharodontosuarus. But Tratayenia was much smaller than these later killers. Still, at 2425 lbs or 1100 kg . . . and with a length of 30 feet or 9 meters. . . Tratayenia was not a small animal.
The teeth of Tratayenia were serrated and there were a lot of them. The bones were hollow like modern bird bones. This made the dinosaur lighter that it would have been with solid bones.
NOTE: Printable version of drawing found by clicking on buttons up top labeled either.....
. . . . All Printables. . . .. or. . . . . . Paleontology. . . . . then scroll down to the bottom for this new drawing. I am posting a couple of drawings from former posts of the other animals mentioned in the above description.
Velociraptor in the Gobi Desert
Gigonatosaurus on the Prowl
Carcharodontosaurus
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