That's because most
ichthyosaur bones from this period have been found in regions farther north like Europe and North America.
Ichthyosaur bones commonly pop up on England's fossil - rich coast near Lyme Regis.
Not exact matches
Dean added: «One of the Aust
bones might also be an
ichthyosaur surangular.
The
bone belongs to a giant
ichthyosaur, a type of prehistoric aquatic reptile, and experts estimate the length of this specimen's body would have been up to 26 metres.
Paul said «Initially, the
bone just looked like a piece of rock but, after recognising a groove and
bone structure, I thought it might be part of a jaw from an
ichthyosaur and immediately contacted
ichthyosaur experts Dean Lomax (University of Manchester) and Prof. Judy Massare (SUNY College at Brockport, NY, USA) who expressed interest in studying the specimen.
Lomax and Massare identified the specimen as an incomplete
bone (called a surangular) from the lower jaw of a giant
ichthyosaur.
Twitchett and his colleagues examined tiny fossils on and inside an
ichthyosaur's
bones to find out what happened after it died.
The remains of a 3 - metre
ichthyosaur are covered in marks left by the creatures that gnawed its
bones, hinting at what feasted on death during the dinosaur era
The remains of a 3 - metre - long
ichthyosaur are covered in marks left by the creatures that gnawed its
bones, hinting at the creatures that feasted on death during the dinosaur era
The researchers believe these
bones, which were thought to be the limbs of land - dwelling dinosaurs, may be other giant
ichthyosaur jawbone fragments, but it's hard to know for sure until a more complete skeleton turns up.
This new jawbone changes our picture of
ichthyosaurs dramatically — not only does it beat out the largest - known shastasaurid, the 69 - foot Shonisaurus sikanniensis, it may reveal that mysterious
bones discovered in other parts of the UK are also from giant
ichthyosaurs:
We argue here that the Aust
bones, previously identified as those of dinosaurs or large terrestrial archosaurs, are jaw fragments from giant
ichthyosaurs.»
The discovery of the
ichthyosaur jawbone sheds light on the mystery of what they once thought as the «dinosaur limb
bones».