'Until now, we didn’t know that early sauropodomorphs could get this small in the Jurassic.'
The scientists reexamined the BP/1/4732 fossil humerus bone., and analyzedfrom various dinosaur fossils to better understand the differences and identify the species.
They arrived at the new conclusion by studying the tiny line structures that emerge in the bones when growth halts. In the bone material of this unknown species, significant lines of arrested growth were noticed. This suggests that the bone belongs to an adult dinosaur, not a juvenile, as previously thought.
After careful examination, the scientists concluded that the fossil belonged to the "smallest sauropodomorph." The adult was probably around a meter long and stood on two legs like its bigger cousins. At the moment, there isn't enough fossil evidence to designate this species just yet. Nonetheless, the bone fossil suggests that the sauropods' ancestors were more diversified than previously assumed.The earliest sauropodomorphs were small omnivores that first appeared in the Carnian. By the Hettangian, early branching sauropodomorphs were globally distributed, had variable postures, and some attained large body masses .
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