Open main menu
Home
Random
Recent changes
Special pages
Community portal
Preferences
About Wikipedia
Disclaimers
Incubator escapee wiki
Search
User menu
Talk
Dark mode
Contributions
Create account
Log in
Editing
Evolutionary radiation
(section)
Warning:
You are not logged in. Your IP address will be publicly visible if you make any edits. If you
log in
or
create an account
, your edits will be attributed to your username, along with other benefits.
Anti-spam check. Do
not
fill this in!
==Examples== Perhaps the most familiar example of an evolutionary radiation is that of [[Placentalia|placental mammals]] immediately after the [[extinction]] of the non-avian [[dinosaur]]s at the end of the [[Cretaceous]], about 66 million years ago. At that time, the placental mammals were mostly small, insect-eating animals similar in size and shape to modern [[shrew]]s. By the [[Eocene]] (58–37 million years ago), they had evolved into such diverse forms as [[bat]]s, [[whale]]s, and [[horse]]s.<ref>This topic is covered in a very accessible manner in Chapter 11 of [[Richard Fortey]]'s ''[[Life: An Unauthorised Biography]]'' (1997)</ref> Other familiar radiations include the [[Avalon Explosion]], the [[Cambrian Explosion]], the [[Great Ordovician Biodiversification Event]], the [[Carboniferous-Earliest Permian Biodiversification Event]], the [[Mesozoic–Cenozoic Radiation]], the radiation of land plants after their [[Evolutionary history of plants#land|colonisation of land]], the Cretaceous [[Evolutionary history of plants#Flowers|radiation of angiosperms]], and the diversification of insects, a radiation that has continued almost unabated since the [[Devonian]], {{Ma|400}}.<ref>The radiation only suffered one hiccup, when the [[Permo-Triassic extinction event]] wiped out many species.</ref>
Edit summary
(Briefly describe your changes)
By publishing changes, you agree to the
Terms of Use
, and you irrevocably agree to release your contribution under the
CC BY-SA 4.0 License
and the
GFDL
. You agree that a hyperlink or URL is sufficient attribution under the Creative Commons license.
Cancel
Editing help
(opens in new window)