If this sounds a bit alarming… it should.
Helicoprion is an extinct genus of shark-like, cartilaginous fish that lived from the early Permian (~290 m.y. ago) all through to the massive Permian-Triassic extinction episode (roughly 250 m.y. ago.)
The fossils were discovered in the Parnaiba Basin of north-eastern Brazil, and are some 278 million years old, corresponding to the Permian period, when all the continents we know today were still fused together.
Species on Earth are disappearing at a never-before seen rate in human history. The stark threat hangs over all species – mammals, reptiles, birds, insects – and researchers are still trying to figure out the extent of this potential mass extinction. Now, a new analysis conducted by Nature found that 41% of all amphibians on the planet now face extinction while 26% of
Imagine salmon in reverse: long-snouted Bandringa sharks migrated downstream from freshwater swamps to a tropical coastline to spawn 310 million years ago – leaving behind a fossil nursery, which researchers found. The bandringa sharks The surprising conclusion was drawn by University of Michigan paleontologist Lauren Sallan and a University of Chicago colleague; they analyzed every known specimen of Bandringa, a
A new species of “sea monster” was unearther in Nevada – a predator so fierce that it often hunted prey as big or bigger than itself. Thalattoarchon saurophagis translates into “lizard-eating sovereign of the sea” – and boy is that a good name. It measured well over 8 meters and lived some 244 million years ago, during the Triassic, before
Between 247 to 252 million years ago, Earth life was going through quite possibly its most dire time. During this period some 90% of world’s species were wiped out, but what puzzled scientists for so long is the fact that it took five million years for life to recover after this apocalypse. A new study conducted by an international team
Some 250 million years ago, life on Earth passed through its toughest time so far, as 96% of all marine species and over three quarters of land vertebrates went extinct. According to British researchers, the mass extinction was so severe that it took life 10 million years to recover. With less than 10 percent of plants and animals surviving and
The mass extinction theory is… a theory, because there are still some blanks left in to fill by scientists; of course, there are those who try to fight it and find other theories and those that try to back it up and fill in the missing pieces of the puzzle. Now, the latter camp recorded a big victory, thanks to
About 250 million years ago, at the end of the Permian, and event caused a mass extinction which killed over 90 percent of the life on Earth. Ecosystems were destroyed and organisms were left to recover; it was the closest life came to being wiped out ever. The full recovery of those ecosystems took at least 30 million years, according