• Welcome to TONMO, the premier cephalopod interest community, and birthplace of #WorldOctopusDay and #CephalopodAwarenessDays. Founded in 2000, we are 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. You can also become a Supporter for just $50/year to remove all ads and enjoy other perks. Follow us on Twitter for more cephy goodness.

ammonites

  1. The Extinction of Ammonites

    The Extinction of Ammonites

    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. Sudden Death To understand what caused the end-Cretaceous mass extinction, the first challenge was to recognize that it...
  2. KimTexan

    New to Tonmo

    Hello my name is Kim. I live near Dallas, Texas. I’m a very active member of the Dallas Paleontological Society and frequent contributor to their monthly newsletter. I am a serious amateur paleontologist and an avid fossil collector. What got me hooked on fossil collecting was finding a 12 inch...
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