This form of fossilisation is called carbonisation.
3.
Ticks had evolved by the Cretaceous period, the most common form of fossilisation being immersed in amber.
4.
However, this is now thought to result from the loss of the wall separating paired guard cells during fossilisation.
5.
Other features originally used to distinguish the species have been recognised as the results of the deformation of the skull after fossilisation.
6.
Gorgons attack by means of a process resembling rapid fossilisation, which gives the appearance of the victim having been turned to stone.
7.
This they explained by a high mortality of subadults and the possibility that old animals preferably lived on heights, where erosion prevented fossilisation.
8.
Achim Reisdorf and Michael Wuttke in 2012 described the taphonomical circumstances of the fossilisation of the holotype of " Juravenator starki ".
9.
Classroom instruction can be useful in both providing appropriate input for second-language learners, and for helping them overcome problems of fossilisation.
10.
It was assessed that the fossilisation was achieved within several days, due to phosphorus in the bat droppings of the cave where the ostracods were living.
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