Azdarchoid z Solnhofen
: 25 października 2011, o 19:55
Frey et al.: "The oldest azhdarchoid pterosaur from the Late Jurassic Solnhofen Limestone (Early Tithonian) of Southern Germany" Swiss J Geosci (w druku) http://dx.doi.org/10.1007/s00015-011-0073-1
z kliku względów ciekawa prackaBased on an almost complete three-dimensionally
preserved skeleton, a new genus and species of an
azhdarchoid pterosaur Aurorazhdarcho primordius n.gen.
n.sp. from the Late Jurassic Solnhofen limestone (Early
Tithonian) of the Eichsta¨tt area (Bavaria, Germany) is
described. Furthermore, a new family the Protazhdarchidae
is proposed. The specimen is attributed to the Azhdarchoidea
based on its glenoid fossa level with the sternum,
the shovel-like shape of the sternal plate, the wide furca of
the coracoid, the metacarpus being longer than radius and
ulna, the femur being 1/3 longer than the humerus, the
femorotibial ratio, and the hammer-shaped humerus among
other diagnostic features. Under UV-light, soft tissue
preservation around the external mould of the head is
visible. It consists of tiny flakes possibly remnants of skin.
The dorsally curved outline of the external mould of the
head suggests the presence of a cranial crest. The new
species is the oldest record of the azhdarchoid pterosaurs. It
supports the Eurasian origin of this group that includes the
largest flying animal ever.
Mnie najbardziej szokuje, że mimo 150 lat dłubania, wciąż tam znajdują coś zupełnie nowego. Motywuje to do poszukiwań nawet w dobrze poznanych stanowiskach np. Krasiejów. Kopiemy tam ponad 10 lat i prawie wszystko zostało już stamtąd opisane. Ostatnio małż. Jednak czasem zdarza się znaleźć tajemnicze kości, które do niczego znanego nie pasują... kto wie co jeszcze czeka na odkrycie?