New scanning methods have helped determine an already well examined fossil is actually a separate species of Archaeopteryx, the evolutionary bridge between bird and reptile. Named Archaeopteryx albersdoerferi, only further research will show if it is truly a stand alone species and not just plain old Archaeopteryx lithographica or Archaeopteryx siemensii.
From Gizmodo:
This particular fossil was discovered in 2009 (it’s referred to as number eight), but a new scanning technique was used for the analysis, so it’s classic case of an old fossil being view through new eyes. That the authors of the new study would declare the specimen a distinct species shouldn’t come as a surprise. Virtually every new fossil of Archaeopteryx has, at first, been declared a new species before eventually being slotted back into one of the two known species, either Archaeopteryx lithographica or Archaeopteryx siemensii, after further scrutiny. The same could happen to Archaeopteryx albersdoerferi, but only time will tell.
Archaeopteryx is one of the most intriguing dinosaurs in the paleontological record. Discovered back in the 1860s, this Jurassic-era dinosaur was celebrated as being a conspicuous demonstration of evolution in action. Not quite lizard and not quite bird, it seemed to show, almost literally, lizards evolving into birds. Archaeopteryx was thus branded a “transitionary” species—a so-called missing link between extinct dinosaurs and modern birds.
I once spent a fantastic day trying to find the "London specimen" in the British Museum. The woman I was with wanted to see the Archaeopteryx, and regardless how hard it seemed for us to find we were gonna!
