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The Palaeontology thread |
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#101 |
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Join Date: Jun 2005
Location: Nottingham
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I've always been a big fan of the Trilobite - some amazing specimens are coming out of Morocco especially these days
![]() Trilobites! Sadly I never found anything other than a few fragments in my fossil collecting days
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#102 |
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Join Date: Nov 2011
Posts: 7,824
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Eee, look at all the trilobites. Thanks for posting them!
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#103 |
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Join Date: May 2014
Location: Mars
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#104 |
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#105 |
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Join Date: May 2014
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Quote:
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#106 |
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Join Date: Sep 2011
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Quote:
Similarly, it's been suggested that Torosaurus, the largest of the ceratopsians, was just a fully mature Triceratops. Drastic changes in skull shape had already been noted in Tyrannosaurus rex as it aged so it's definitely a possibility. |
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#107 |
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Join Date: May 2014
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Quote:
It's been suggested in recent years that Dracorex is actually a juvenile Pachycephalosaurus, and they lose most of the horns as they age.
Similarly, it's been suggested that Torosaurus, the largest of the ceratopsians, was just a fully mature Triceratops. Drastic changes in skull shape had already been noted in Tyrannosaurus rex as it aged so it's definitely a possibility. |
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#108 |
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Join Date: Jun 2013
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Thank you for all the links folks. Marvellous stuff.
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#109 |
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Join Date: Jan 2006
Posts: 4,040
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I have a contribution for you Keyser.
Last week I saw a mammoth skull fossil with four bottom teeth when they would have expected two. They think it was an adolescent and that the extra two were milk teeth. They were very large milk teeth. It was found in Germany. I hope I've remembered the facts correctly
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#110 |
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Join Date: Feb 2014
Location: The Sixth Circle of Hell
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Thanks for all the posts folks.
![]() There is so much going on at the moment I am at a loss what to link to next!
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#111 |
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Quote:
It's been suggested in recent years that Dracorex is actually a juvenile Pachycephalosaurus, and they lose most of the horns as they age.
Similarly, it's been suggested that Torosaurus, the largest of the ceratopsians, was just a fully mature Triceratops. Drastic changes in skull shape had already been noted in Tyrannosaurus rex as it aged so it's definitely a possibility. http://www.plosone.org/article/info%...l.pone.0032623 But there were many dinosaurs who undertook drastic ontogenetic changes as they grew up. I am trying to find a really good image of Tyrannosaurus rex growth stages - from baby to mature adult. Here is a very good paper on the estimated mass of some of the most complete Tyrannosaurus skeletons. ![]() http://www.plosone.org/article/info%...l.pone.0026037 |
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#112 |
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Join Date: Nov 2013
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Blimey this thread a graveyard.
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#113 |
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Join Date: Nov 2013
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Only joking. This is really interesting thread and am loving these links. So many interesting things to read.
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#114 |
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Join Date: May 2010
Posts: 9,275
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Quote:
Blimey this thread a graveyard.
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#115 |
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Join Date: Feb 2014
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Quote:
Learning about dinosaurs however is a bone-us.
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#116 |
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Join Date: May 2014
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Quote:
Learning about dinosaurs and other prehistoric life is a very grave matter.
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#117 |
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Join Date: May 2010
Posts: 9,275
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Quote:
Don't be petrified.
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#118 |
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Join Date: Feb 2014
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Talking of bone(r)s.
![]() A medium-sized Titanosaur may have had a penis 4 metres long. God knows how massive the very largest Sauropods todgers where! ![]() http://www.youtube.com/watch?v=vbmZ6ZB_-Wc |
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#119 |
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Join Date: May 2014
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Quote:
Talking of bone(r)s.
![]() A medium-sized Titanosaur may have had a penis 4 metres long. God knows how massive the very largest Sauropods todgers where! ![]() http://www.youtube.com/watch?v=vbmZ6ZB_-Wc |
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#120 |
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Join Date: May 2010
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Quote:
Once news of this gets around I'm sure we'll see a drop in the number of blue whales out clubbing and showing off.
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#121 |
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Join Date: May 2003
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Quote:
Blimey this thread a graveyard.
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#122 |
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Join Date: May 2009
Location: Devon
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I saw a docu yesterday, and the Blue Whal gulps 1.5 tons of Krill, then filters it.
But anyway, what \i really want to know, is how do ancient species survive and their DNA not mutate? eg 300 million years for crocs, horsehoe crabs setc |
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#123 |
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Join Date: May 2003
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Quote:
I saw a docu yesterday, and the Blue Whal gulps 1.5 tons of Krill, then filters it.
But anyway, what \i really want to know, is how do ancient species survive and their DNA not mutate? eg 300 million years for crocs, horsehoe crabs setc |
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#124 |
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Join Date: May 2004
Location: Storbritannia
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...and now for a baby mammoth:
A perfectly preserved baby mammoth which died 42,000 years ago has been unveiled at the Natural History Museum in London. Named Lyuba by the Siberian deer herder who discovered her in 2007, the specimen is 130cm tall and weighs 50kg. Palaeontologist Prof Adrian Lister described seeing her for the first time as an "incredible experience". http://www.bbc.co.uk/news/science-environment-27477167 |
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#125 |
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Join Date: Oct 2009
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Quote:
screw those weaklings, the might megalodon will squish them all!!!!
http://www.discovery.com/tv-shows/sh...-megalodon.htm If only we could rediscover some of these beautiful animals like we did the coelacanth. http://en.wikipedia.org/wiki/Coelacanth#Life_history |
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