The Devonian, part of the Paleozoic era ... Early placoderms fed on mollusks and other invertebrates, but later species developed into ferocious, fish-slicing monsters measuring up to 33 feet ...
However, it is now being discovered in fossil finds that tectonics too, have a role in species evolution. Ancient primitive 'Devonian coelacanth' fish were recently brought to the surface in the ...
The Ordovician, Silurian and Devonian have their points of interest: fish armoured like medieval ... lost 85% of their species. If they had vanished, the Cretaceous would have a different name ...
In 1980, Devonian fish fossils were uncovered in the city's Plover Cove area. The fossils authenticate the rocks' Devonian Period origins and date back roughly 400 million years. In 2014 ...
Scientists estimate more than 99 per cent of all species that have ever existed ... were the most abundant and diverse group of fish during the Devonian period, which was 419 to 359 million ...