In a previous article on the 58th Symposium on vertebrate palaeontology and anatomy compared (SVPCA), held in Cambridge, England, I discussed some of the things in the shoot - tetrapods and Sarvpvdha presented.
This time round, we look at the issues Mesozoic - pterosaurs particuteve Sweetman presented in the first outing the new maniraptoran miniscule theropods that he and I have been working see. When it is printed, nothing back to the same (huge exaggeration fully considered: Steve was discussed further with salamanders, anurans and lizards I) is. After mentioning lepidosaurs, Neil Curtis (et) and Mark Jones (et) analysis of some major functions in Sphenodon skull is presented.
Mesozoic marine reptiles was fantastic, not well shown, but the new Mark Evans and look at Roger Benson Lias plesiosaurian Variety was pretty neat: Here was yet another study showed that diversity was higher Lias plesiosaurian previously thought. It seems that hawkinsi Thalassiodracon not, after all, just ordinary small community plesiosaurian Lias. Mark Purnell and Roderick Best microtextural analysis method shows great Simolestes pliosaur was likely a cephalopod expert as has been suggested, but it was very different from the diet is Liopleurodon.
Morganucodontids, spinosaurids Australia, hindlimb ornithischian and pelvic muscles and distribution pneumaticity Association talks on forming other Mesozoic theropods. Michael Pittman, showing the morphological changes that occurred during the evolution maniraptoran as shape and flexibility of the door has changed. David Norman comments on the classification discussed iguanodontian Great Britain: he will accept credit Mantellisaurus, but not to distinguish Dollodon [adjacent reconstruction Mantellisaurus by Steveoc86, Wikipedia]. Moreover, he emphasized his opinion that the old cry iguanodontian Quarry is referable to dawsoni Barilium (Norman 2010). I find this hard to believe because (despite the extensive reconstruction of the right ilium) is a former exotic indirect dorsal iliac margin that makes it look quite different from B. Ilium dawsoni holotype (There are other differences - such as longer nervous.
Mesozoic marine reptiles was fantastic, not well shown, but the new Mark Evans and look at Roger Benson Lias plesiosaurian Variety was pretty neat: Here was yet another study showed that diversity was higher Lias plesiosaurian previously thought. It seems that hawkinsi Thalassiodracon not, after all, just ordinary small community plesiosaurian Lias. Mark Purnell and Roderick Best microtextural analysis method shows great Simolestes pliosaur was likely a cephalopod expert as has been suggested, but it was very different from the diet is Liopleurodon.
Morganucodontids, spinosaurids Australia, hindlimb ornithischian and pelvic muscles and distribution pneumaticity Association talks on forming other Mesozoic theropods. Michael Pittman, showing the morphological changes that occurred during the evolution maniraptoran as shape and flexibility of the door has changed. David Norman comments on the classification discussed iguanodontian Great Britain: he will accept credit Mantellisaurus, but not to distinguish Dollodon [adjacent reconstruction Mantellisaurus by Steveoc86, Wikipedia]. Moreover, he emphasized his opinion that the old cry iguanodontian Quarry is referable to dawsoni Barilium (Norman 2010). I find this hard to believe because (despite the extensive reconstruction of the right ilium) is a former exotic indirect dorsal iliac margin that makes it look quite different from B. Ilium dawsoni holotype (There are other differences - such as longer nervous.
Overhang at the Old Quarry Sample cry - but it is not clear how significant they are Norman says margins indirect iliac due to changes after death Figure [UPDATE: I'm going to backtrack here, new observations me think that he is. right]). Anyway, what with the recent naming of Owenodon and Kukufeldia, it is clear that once lamented the state of wastebasket sensu lato Iguanodon (Naish and Martill 2008) is finally settled. What is a sustainable material for something like 30 million years at least five turns to 'sex' distinct, none of which around for more than five million years was meant to. Meanwhile,
the old cry of Quarry iguanodontian special interest (to me) because it alleged links Piltdown hoaxFew SVPCA negotiations in pterosaurs may have given very recent predictions Flugsaurier 2010: Third International Symposium Pterosaurs meeting in Beijing, But there was one or two verses, however.
Dave Unwin discussion was too incredible: a new sample is Darwinopterus in direct contact with eggs (eggs are placed as if just emerging from the pelvis, an event that almost certainly happened after death) is preserved. No cranial crest Darwinopterus samples concerned (unlike others of the same species), allows us to conclusions about sexual dimorphism confidence in pterosaurs (and other?). At this stage, I urge to say any more resistance.
Colin Palmer very interesting speech about the status of flight wings pterosaur. According to the center position, he had to get flying pterosaurs to hold their wings in a state of 'swept forward, quite different from those traditionally thought to be. Now I doubt, because it can create a very 'point' - the tip of the wing somewhat different from what appears to maintain the soft tissue is present. But let us not forget that all pterosaurs are the same, and what might ornithocheirids asks for, say, or necessarily followed rhamphorhynchids anurognathids or whatever.lar - before pterosaurs Cenozoic mammals.Azhdarchid all the rage these days, ever since Witton and Naish that children who reported excellent article (Witton and Naish 2008) [one of the many newspaper articles shown in the picture above: looking for typos. Directly above - adapted version of the piece Mark Witton - the Paleochick 's vote].
Colin Palmer very interesting speech about the status of flight wings pterosaur. According to the center position, he had to get flying pterosaurs to hold their wings in a state of 'swept forward, quite different from those traditionally thought to be. Now I doubt, because it can create a very 'point' - the tip of the wing somewhat different from what appears to maintain the soft tissue is present. But let us not forget that all pterosaurs are the same, and what might ornithocheirids asks for, say, or necessarily followed rhamphorhynchids anurognathids or whatever.lar - before pterosaurs Cenozoic mammals.Azhdarchid all the rage these days, ever since Witton and Naish that children who reported excellent article (Witton and Naish 2008) [one of the many newspaper articles shown in the picture above: looking for typos. Directly above - adapted version of the piece Mark Witton - the Paleochick 's vote].
terrestriality strong inference of azhdarchids, along with more realistic mass estimate that currently around (Witton 2008) kicking, means that the possibility flightlessness azhdarchid on a few occasions recently speculated. While Witton (and Naish) to win the masses for large azhdarchids 250 kg or so, Don Henderson recently proposed c. 540 kg for northropi Quetzalcoatlus, and therefore proposed that the flight might have been northropi Q (Henderson 2010). This was the subject of debate. I think it's good to see someone else who absurdly low critical mass that the pterosaurs traditionally large and small will be given. According to 70 kilograms as seems likely to Quetzalcoatlus by many writers considered, Don said: "I would love to know what they are smoking" While many of us tend to assume that for azhdarchids flightlessness with what we know of in contrast to the skeleton, the fact remains that a very weak Q northropi known, perhaps allowing it to reduce the possibility of the wings. However, the overall robustness and muscle attachment sites are the humerus, I think, still shows the ability to fly. I also think that c.. 540 kg mass estimate is too high: Don your computing model is based on the incorrect form, but he knows it to test things further. We may come back to this issue are againWhere desmostylians
Flightlessness in azhdarchids
Negotiations, including those in the Cenozoic mammal rodent skull anatomy, diversity Oligocene sirenian and mechanics of swallowing - Nutrition in mysticetes.
Vera Weisbecker (with Anjali Goswami) looked at brain size across the marsupials and placentals: comparison convincingly show that marsupials are not always smaller than the brain as placentals. The idea that their results: the skewing by mammals. Interestingly, brain size is a marsupial with BMR (in contrast to placentals) but seems not more to do with breastfeeding has increased. It (a look at brain size and development in birds too) recently published in PNASDesmostylians - Department of neat and exotic mammals afrotherian really should cover the Tet Zoo some time - were Hayashi et Shvjy subject. Download talk. As everyone knows, lifestyle, diet and even appeared desmostylians been controversial. In one extreme, some writers as they foraged on the shores of the land quadrupeds exposure is to be interpreted. In another, some of them as animals such as marine pinniped that only land for rest and basking visits be considered. Thin sections and CT scans of the ribs and limb bones of different taxa desmostylian shows that they all are not alike: some exhibited osteosclerosis or pachy - osteosclerosis and probably in shallow water static thrust Mottaki, while one (Desmostylus) exhibited bone osteoporosis and likely dynamic thrust deep water is used. Desmostylus result may have been marine, deep-water animals, compared with other taxa (though it's only fair to remember here is that in contrast to the results of isotope analysis:. Clementz et al (2003)). Oh, and if you want to know the story behind the cartoon character used in the Orange High, I recommend you see this article in Amniote blue.
So that was neat. Loads more has happened and I talk about it, but as the time factor is real. I hope you enjoyed this quick look at (some) edited highlights. If you want to know more, online summary of the meeting here SVPCA. Oh, and those of you already seen the second picture want to know what all the gawping .. Well, here is the answer. John Conway at the scene Jehol biota Zoom.
Vera Weisbecker (with Anjali Goswami) looked at brain size across the marsupials and placentals: comparison convincingly show that marsupials are not always smaller than the brain as placentals. The idea that their results: the skewing by mammals. Interestingly, brain size is a marsupial with BMR (in contrast to placentals) but seems not more to do with breastfeeding has increased. It (a look at brain size and development in birds too) recently published in PNASDesmostylians - Department of neat and exotic mammals afrotherian really should cover the Tet Zoo some time - were Hayashi et Shvjy subject. Download talk. As everyone knows, lifestyle, diet and even appeared desmostylians been controversial. In one extreme, some writers as they foraged on the shores of the land quadrupeds exposure is to be interpreted. In another, some of them as animals such as marine pinniped that only land for rest and basking visits be considered. Thin sections and CT scans of the ribs and limb bones of different taxa desmostylian shows that they all are not alike: some exhibited osteosclerosis or pachy - osteosclerosis and probably in shallow water static thrust Mottaki, while one (Desmostylus) exhibited bone osteoporosis and likely dynamic thrust deep water is used. Desmostylus result may have been marine, deep-water animals, compared with other taxa (though it's only fair to remember here is that in contrast to the results of isotope analysis:. Clementz et al (2003)). Oh, and if you want to know the story behind the cartoon character used in the Orange High, I recommend you see this article in Amniote blue.
Flightlessness in azhdarchids-2
So that was neat. Loads more has happened and I talk about it, but as the time factor is real. I hope you enjoyed this quick look at (some) edited highlights. If you want to know more, online summary of the meeting here SVPCA. Oh, and those of you already seen the second picture want to know what all the gawping .. Well, here is the answer. John Conway at the scene Jehol biota Zoom.
I did not give permission for this article to be reproduced. Please remove it.
ReplyDelete