transitional fossil
edyong | February 3, 2009Nine years ago, a team of fossil-hunters led by Philip Gingerich from the University of Michigan uncovered something amazing - the petrified remains of an ancient whale, but one unlike any that had been found before. Within the creature's abdomen lay a collection of similar but much smaller bones. They were the fossilised remains of a foetal whale, perfectly preserved within the belly of its mother. Gingerich says, "This is the 'Lucy' of whale evolution."
The creatures are new to science and Gingerich have called them Maiacetus inuus. The genus name is an amalgamation of the Greek words "maia…
grrlscientist | October 17, 2008tags: Tiktaalik rosea, sarcopterygian, fishibian, fishapods, transitional fossil, evolution, vertebrate terrestriality, vertebrate evolution
A new study on the internal anatomy of the skull of the extraordinary fish, Tiktaalik roseae, which lived 375 million years ago, provides more evidence of how vertebrate life transitioned from water to land. The head showed changes from more primitive fish that helped adapt to the new feeding and breathing conditions presented by a terrestrial environment, scientists said.
Image: Ted Daeschler, Academy of Natural Sciences [larger view].
A paper was…