The 2024 Legal Defense Fundraiser has ended early due to the Board's decision to settle the suit. Donations will go towards the creation of a legal defense fund. Discussion on the matter can be found at the RationalMedia Foundation noticeboard. Thank you for your generous support.

Information icon.svg Campaigning is open for the RationalWiki 2024 Board of Trustees election.

Haikouichthys

From RationalWiki
Revision as of 14:39, 11 December 2018 by Spud (talk | contribs) (Have to put back in the evolution category.)
Jump to navigation Jump to search
Haikouichthys

Haikouichthys was one of the first organisms to have a distinct backbone and head, making it a notable transitional form in the transition from invertebrates to fish.[1] It arose during the Cambrian explosion around 530 million years ago, along with AnomalocarisWikipedia and various trilobites.Wikipedia Though it was likely not a direct ancestor of fishes, it is often referred to as one.[2][3] Its backbone was a notochord, that is, a cartilaginous rod running down its back, and it had gill slits, as with all other primitive chordates.

References