Text written in Basque and translated automatically by Elia without any subsequent editing. SEE ORIGINAL
History of Arrabios
2001/03/29 Elhuyar Zientzia
Photographer: Joxerra Aihartza
It seems that the walls are not now. In fact, a Chinese site has found lots of 150 million years ago. And not little: More than 500 units on a plot of 10 m2.
All of them are of two species, but in different phases of growth. In one of the species appears the larva, the adults and all the intermediate phases of the water in the sight of the gill. The other species, apparently, is the neotenic, that is, that which, being physically immature, has reproductive capacity
this is quite common also in current amphibians
These fossils do not provide information about the ancestors of the roe, but they are believed to serve to clarify evolutionary aspects.
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