https://gregladen.com/blog/2007/12/04/new-really-big-seadwelling-din/ Wed, 05 Dec 2007 08:35:20 +0000 hourly 1 https://wordpress.org/?v=6.4.8 https://gregladen.com/blog/2007/12/04/new-really-big-seadwelling-din/#comment-1348 Wed, 05 Dec 2007 08:35:20 +0000 http://scienceblogs.com/gregladen/2007/12/04/new-really-big-seadwelling-din/#comment-1348 The adaptationist in me says, “Of course there were…. better get looking for them”… there were aquatic/semi-aquatic dinosaurs but not swimming dinosaurs as far as we know. On the other hand, there are only a few hundred known genera (and about twice as many known species?) so we obviously only know about a small percentage of the actual dinosaurs that existed.Or, I could say this: Yes, of course there “were” marine dinosaurs, and they still exist. E.g. penguins.

]]> https://gregladen.com/blog/2007/12/04/new-really-big-seadwelling-din/#comment-1347 Wed, 05 Dec 2007 01:49:49 +0000 http://scienceblogs.com/gregladen/2007/12/04/new-really-big-seadwelling-din/#comment-1347 …or Greg.Were there any actual marine dinosaurs? Or were the seas too dangerous for half-adapted forms ever to finish the transition?

]]> https://gregladen.com/blog/2007/12/04/new-really-big-seadwelling-din/#comment-1346 Tue, 04 Dec 2007 21:15:18 +0000 http://scienceblogs.com/gregladen/2007/12/04/new-really-big-seadwelling-din/#comment-1346 Mark: that is not nitpicking. I thought that they were not dinosaurs, but I just blogged what I saw uncritically and I am deeply ashamed. It is worse than someone calling an ape a monkey.

]]> https://gregladen.com/blog/2007/12/04/new-really-big-seadwelling-din/#comment-1345 Tue, 04 Dec 2007 18:29:12 +0000 http://scienceblogs.com/gregladen/2007/12/04/new-really-big-seadwelling-din/#comment-1345 The article’s headline calls it a dinosaur. Pliosaurs (as all plesiosaurs) were not dinosaurs. (/nitpick)

]]> https://gregladen.com/blog/2007/12/04/new-really-big-seadwelling-din/#comment-1344 Tue, 04 Dec 2007 18:07:37 +0000 http://scienceblogs.com/gregladen/2007/12/04/new-really-big-seadwelling-din/#comment-1344 Pic of pliosaur skeleton here:http://runswickbay.blogspot.com/2007/11/pliosaur-lower-jurassic-shale.htmlIt's from lower jurassic shale cliffs about two miles from my house, and it’s one the 10 metre ones. The cliffs were extensively quarried to manufacture the dye fixative alum and about 20 million tonnes of the cliffs were quarried and processed: the shale is full of rusty belemnites and ammonites. Haven’t found a pliosaur of my own. Yet.

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