Rhizodus is an extinct genus of a rhizodont, a branch of the Sarcopterygii, the bony vertebrate clade that also includes tetrapods.

 Rhizodus hibberti! Считают , что это крупнейшея пресноводная рыба с зубами как у Тирекса. Найдена в Шотландии, находке 300млн лет, она могла весить до 2 тонн. Been hunting Coal-Age predators in Scotland.

 My oh my! I've been in the UK for two weeks - sorry for not keeping up with any new updates. I really have to start investing in some serious internet time or wireless when I'm on the road, otherwise the content of this site (and consequently the visitors) tapers off rather quickly! So, here's what's been up:

 I started my trip in Glasgow, where I met up with fellow old-dead-fish-worker, Jon Jeffery. Jon and I are some of the few folks who work on a group of big dead fish known as rhizodontids. Rhizodontids were enormous predators that were the ecological equivalent of a water-borned T. rex. Some taxa, such as Rhizodus hibberti from the Scottish coal measures reached up to 7 or 8 meters in length! Their teeth (see below) were nearly as large as those of a medium-sized tyrannosaur and looked much the same, too!

 Jon and I are working on a couple papers that describe the anatomy of these fish. Despite their often enormous size, rhizodonts had much trouble 'keeping things together' after death. As a consequence, they've offered a considerable mystery to palaeontologists for more than a century. It was clear, upon the discovery of the first complete fins of rhizodonts (T.H. Huxley was the first to point this out) that they were closely related to tetrapods (four-limbed vertebrates including ourselves), because they showed a distinct humerus, radius, and ulna in their fins - just like our own limbs! However, the largely incomplete nature of their remains have made it rather unlcear just how they're related to tetrapods. Thus, there are a few of us who have dedicated quite a bit of time to pulling open dusty museum cabinets and trying to pull together as much as these animals as we can. So, I spent much of the last two weeks doing just that. A number of "hidden treasures" were uncovered, but I cannot disclose much about them right now.

 Репродукции (1, 2, 3, 4):

 7 - 8 метров в длину, однако. Не хрен собачий:

 Ископаемые останки (1, 2, 3, 4, 5, 6):