China
has yielded yet another amazing primitive bird fossil. This one, named Jeholornis
primain (or Jeholoornis Primain) comes from the Jiufotang Formation of north-eastern
China, an area that has yielded many other fossil bird treasures, as well as feathered
dinosaurs. Appearing in the July 25 2002 issue of Nature, Zhou and Zhang state
that this Lower Cretaceous bird has a long tail resembling that of dromaeosaurid
dinosaurs. Typical of many fossils from the Chinese Laggerstatten, the exquisite
preservation includes 50 plant ovules in the stomach that is the earliest direct
evidence of seed eating in a bird. Additionally, while only slightly more developed
than Archaeopteryx,
Jeholornis prima exhibits a skeletal structure well adapted for powerful flight.
Zhou, Z. & Zhang, F. A long-tailed, seed-eating bird from the Early Cretaceous
of China. Nature, 418, 405 - 409, (2002). [PubMed:
PMID: 12140555 - in process]