tag:blogger.com,1999:blog-34429437.post6429944905820513..comments2024-03-14T20:14:20.974-06:00Comments on The Tyrannosaur Chronicles: brooding on my origins (origins part 1)traumadorhttp://www.blogger.com/profile/00387315561167115253noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-34429437.post-19196499955716765712008-12-31T15:25:00.000-07:002008-12-31T15:25:00.000-07:00Dinorider- yeah francios is a young up and comer. ...Dinorider- yeah francios is a young up and comer. i'd been at the tyrrell longer than him till i was fired LOL<BR/><BR/>as for males helping females there's a lot of debate on that. i wasn't going to go into the behaviour end of things as 99% of it there is no hard evidence for.<BR/><BR/>i do remember good old adocus (these pics and my actual visit with francios was THE day of the press release! we went from his office down to the gallery where he did a live TV interview with the specimen!!!)<BR/><BR/>Sean- now you have brought up a great point... and with what i presented that would be a logical conclusion (and it still is, but like always it's way more complicated). however i didn't give you the WHOLE story. sorry about that i will try not to shy away from the really technical stuff in the future. what with clever mammals like you putting me to task ;p<BR/><BR/>though both have hard shelled eggs in the fossil record, detailed surface anaylsis reveals that their egg shells at the microscopic level are very very different. so different in fact that they are used to TRY and general ID eggs from their shell makeup.<BR/><BR/>saurischians have less variation in their shell types than ornithischians as rule, but the theropods due have a lot of varation themselves. the ornithischians have over a dozen different egg shell compositions some of them quite drastically different.<BR/><BR/>due to this difference of shells in even the same general groups (minus sauropods and prosaurpods which due to their size needed to have hardshells through their whole history it seems) it can be argued (as it has been) that these hard shells evolved convergently, and that overall it was in response to environment changes we know were happening in the cretaceous.<BR/><BR/>at the same time there is debate, and many are in your camp of thinking. eggs are hard enough to fossilize at the best of times, and thus we may be getting a biasis of cretaceous eggs due to those new environmental factors perserving eggs better than before.<BR/><BR/>again a very neat field of palaeo that needs a lot of work!<BR/><BR/>Raptor- sadly francios wasn't able to help me with MY past, but his insights on eggs in general should come in handy!<BR/><BR/>as for your post its the next stop on the web i'm going to make!<BR/><BR/>Dinorider- cheers man. can't wait till you all catch up with me in the future :Ptraumadorhttps://www.blogger.com/profile/00387315561167115253noreply@blogger.comtag:blogger.com,1999:blog-34429437.post-5734850894490993042008-12-31T04:08:00.000-07:002008-12-31T04:08:00.000-07:00Happy new year to all Zealandia's 5-year-old-tyran...Happy new year to all Zealandia's 5-year-old-tyrannosaurids named Traumador! .. and to his readers too! ;)<BR/><BR/>you will be my first friend receiving the new year! hope your wishes will come true.Dinorider d'Andoandorhttps://www.blogger.com/profile/02289450500493424952noreply@blogger.comtag:blogger.com,1999:blog-34429437.post-6435458366413476672008-12-30T15:04:00.000-07:002008-12-30T15:04:00.000-07:00Dude, you're WAY smarter than you give yourelf cre...Dude, you're WAY smarter than you give yourelf credit for. If you were stupid, than you wouldn't be able to write the Paleo Facts. Maybe Dr. Therrien can shed some light onto your mysterious past. <BR/><BR/>Anyway, if want something to do, you can read my blog. You will learn where my love of paleontology came from.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-34429437.post-20235130669120836302008-12-29T10:11:00.000-07:002008-12-29T10:11:00.000-07:00Hmmm... If they've found eggs from both saurischia...Hmmm... If they've found eggs from both saurischians and ornithischians and they all have hard shells that kinda makes it seem likely that all dinosaurs had hard-shelled eggs -- that hard-shelled eggs were produced by their common ancestors. I wonder when that whole thing got started?<BR/><BR/>And dude -- you may have a brain the size of a peanut but you're probably the most articulate five year-old I've ever heard of.Sean Cravenhttps://www.blogger.com/profile/13763869499494698057noreply@blogger.comtag:blogger.com,1999:blog-34429437.post-54115595295412692532008-12-28T19:32:00.000-07:002008-12-28T19:32:00.000-07:00NICE books!Dr therrien looks younger than what I h...NICE books!<BR/><BR/>Dr therrien looks younger than what I had imagined. My neurons are still more used to the Bob Baker type! LOL<BR/><BR/>I read that male dinosaurs may have helped mommies with that taking care of the eggs stuff.<BR/><BR/>BTW those Adocus eggs had a hard shell too. Do you remember?Dinorider d'Andoandorhttps://www.blogger.com/profile/02289450500493424952noreply@blogger.com