Comments on: Why Did Mammals Survive When Dinosaurs Perished?

By: Small Mammals Bit Down on Dino Bones | Dinosaur Tracking

Small Mammals Bit Down on Dino Bones | Dinosaur Tracking — Fri, 25 Jun 2010 13:57:17 +0000

[...] have long been characterized as the underdogs of the Mesozoic world. They diversified in habitats ecologically dominated by dinosaurs, but, even though most were small, they did not [...]

By: Raymond

Raymond — Fri, 21 May 2010 16:40:44 +0000

While many of the higher multi clade rankings did indeed go extinct, it was the Paleocene that was their heyday in terms of species numbers and overall biomass IIRC. It was the rise of Glires that did them in most likely.

By: 220mya

220mya — Mon, 08 Feb 2010 20:51:33 +0000

Sorry – Chris’s comment didn’t show up when I submitted mine.

By: 220mya

220mya — Mon, 08 Feb 2010 20:50:48 +0000

Hey now, multituberculates made it into the Eocene. However, specific lineages of multis *did* go extinct across the K-T boundary.

By: Brian Switek

Brian Switek — Mon, 08 Feb 2010 19:45:35 +0000

Chris; Yes, the multis did hang on for a while. That is why I qualified by statement by saying that some of the groups I mentioned suffered a major decline in diversity and died out not long afterward. You are right that multis hung on for a bit, but their diversity was nothing like what it had previously been. Thanks for bringing that up.

By: chris y

chris y — Mon, 08 Feb 2010 19:29:17 +0000

like the triconodontids, spalacotheroids, dryolestids and multituberculates

Really? I thought the multis hung on to the end of the Eocene.