Haikouichthys

From RationalWiki
Jump to: navigation, search
A gradually improving article series on

Evolution

Icon evolution.svg
People
Science
Pseudoscience
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. 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.

[edit] Footnotes

Personal tools
Namespaces

Variants
Actions
Navigation
Community
Tools
support