Welcome to TONMO, the premier cephalopod interest community. Founded in 2000, we have built a large community of experts, hobbyists and enthusiasts, some of whom come together when we host our biennial conference. To join in on the fun, sign up - it's free! You can also become a Supporter for just $50/year to remove all ads and gain access to our Supporters forum. Follow us on Twitter and Facebook for more cephy goodness.
This excerpt from Monarchs of the Sea: The Extraordinary 500-Million-Year History of Cephalopods by Danna Staaf is shared with TONMO to celebrate the book's birthday.
To understand what caused the end-Cretaceous mass extinction, the first challenge was to recognize that it...