Apparently I'm a bit slow today, because my brain started completing the headline as "Diplodocus, Long Thought Extinct, ..." before my eyes could finish reading it.

> The animal’s fossilized remains — 14 well-preserved tail vertebrae and several chevron bones — were unearthed at the La Tejería site near the city of El Castellar in the Spanish province of Teruel.

According to Wikipedia (if I'm reading correctly), the chevron bones are also part of the tail [1]. It's pretty cool how such a small part of the skeleton can carry so much information!

[1]: https://en.wikipedia.org/wiki/Haemal_arch