"New Study Confirms Sharks Arose from Acanthodian Fishes" Topic
All members in good standing are free to post here. Opinions expressed here are solely those of the posters, and have not been cleared with nor are they endorsed by The Miniatures Page.
For more information, see the TMP FAQ.
Back to the Animals Plus Board
The Membership System will be closing for maintenance in 12 minutes. Please finish anything that will involve the membership system, including membership changes or posting of messages.
|Tango01 ||15 Apr 2017 12:42 p.m. PST|
"Analyzing a well-preserved fossil of Doliodus problematicus, a sharklike fish that lived 400-397 million years ago (Devonian period), AMNH curator John Maisey and co-authors identified it as an important transitional species that points to sharks as ancanthodians' living descendants.
"Major vertebrate evolutionary transitions, such as ‘fin to limb' and ‘dinosaur to bird' are substantiated by numerous fossil discoveries. By contrast, the much earlier rise of sharklike fishes within jawed vertebrates is poorly documented," Dr. Maisey said.
"Although this ‘fish to fish' transition involved less profound anatomical reorganization than the evolutions of tetrapods or birds, it is no less important for informing the evolutionary origins of modern vertebrate diversity…"
|cfielitz||16 Apr 2017 6:10 p.m. PST|
I know Maisey, but I need to read the paper to be convinced.