stomatopod
Junior Member
Gluttonous Auchenipterid
Posts: 182
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SVP 2014
Sept 20, 2014 4:01:40 GMT 5
via mobile
Post by stomatopod on Sept 20, 2014 4:01:40 GMT 5
Hello,
While risking being chastised by Cau again,
I would like to discuss the abstracts of this years meeting.
I cannot really pick some favourites, but some stuff from my head:
There is more on Sciurimimus, apparently giving more evidence for its megalosauroid status. Juravenators identy is cast in doubt, too.
Balaenoptera sibbaldina specimen is described and its phylogeny analized. Does not seem to be a blue whale.
Another clade of filter feeding Lamniforms.
Lots of basilosauroid stuff.
Same for Paravians.
New population of Hydrodamalis gigas.
More Ichthyovenator.
There is something on a new Daspletosaurus by Carr and he agrees that it is only distantly related to T. rex, which he states is derived from an Asian lineage, something we will surely have to live with pretty soon.
Well I gonna read it again, so much stuff.
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Deleted
Deleted Member
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Post by Deleted on Sept 20, 2014 11:16:27 GMT 5
Balaenoptera sibbaldina specimen is described and its phylogeny analized. Does not seem to be a blue whale. What does it turn out to be? I'm pretty sure that a conclusion would be listed in the abstract. |
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Post by Grey on Sept 20, 2014 11:41:06 GMT 5
Balaenoptera sibbaldina specimen is described and its phylogeny analized. Does not seem to be a blue whale. What does it turn out to be? I'm pretty sure that a conclusion would be listed in the abstract. A LARGE BALAENOPTERID SKELETON FROM THE EARLY PLIOCENE OF THE NORTH SEA SHEDS LIGHT ON THE AFFINITIES OF 'BALAENOPTERA' SIBBALDINA(MAMMALIA, CETACEA, MYSTICETI) BISCONTI, Michelangelo, San Diego Natural History Museum, San Diego, CA, United States of America, 92101; BOSSELAERS, Mark, Royal Belgian Institute of Natural Sciences, Brussels, Belgium A large balaenopterid skeleton was found in the early Pliocene Kattendijk Sands Formation at Kallo, a few kilometers from Antwerp (Belgium). The skeleton includes most of the skull, earbones, the dentary, some vertebrae, hyoid, some carpals, scapula, humerus, radius, ulna, some chevrons, and a number of ribs. The supraoccipital is around 570 mm in length and 1070 mm in width (at the level of the posterior end of the lambdoid crest). The transverse diameter across the occipital condyles and the foramen magnum is 240 mm. The specimen is gigantic in size. The rostrum shows long ascending processes of the maxillae with have balaenopterid-like shapes. The periotic has balaenopterid-like characters in the shape of the anterior process and of the pars cochlearis. However, differing from Balaenopteridae, the supraorbital processes of the frontal are narrow. Compared to other balaenopterids, this specimen shows clear affinities with 'Balaenoptera' borealina, a taxon based on fragmentary materials. This specimen adds new morphological information to the study of balaenopterid systematics and phylogeny. A phylogenetic analysis revealed that it was close to 'Balaenoptera' siberi and that both were well nested within Balaenopteridae. |
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blaze
Paleo-artist 
Posts: 766
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Post by blaze on Sept 20, 2014 11:50:02 GMT 5
edit: too slow
I little more on the Ichthyovenator part, more material from the holotype including complete cervical series strengthens the synonymy of Sigilmassasaurus with Spinosaurus, also Ichthyovenator appears to be more closely related to the spinosaurines.
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Sept 20, 2014 11:59:30 GMT 5
What does it turn out to be? I'm pretty sure that a conclusion would be listed in the abstract. A LARGE BALAENOPTERID SKELETON FROM THE EARLY PLIOCENE OF THE NORTH SEA SHEDS LIGHT ON THE AFFINITIES OF 'BALAENOPTERA' SIBBALDINA(MAMMALIA, CETACEA, MYSTICETI) BISCONTI, Michelangelo, San Diego Natural History Museum, San Diego, CA, United States of America, 92101; BOSSELAERS, Mark, Royal Belgian Institute of Natural Sciences, Brussels, Belgium A large balaenopterid skeleton was found in the early Pliocene Kattendijk Sands Formation at Kallo, a few kilometers from Antwerp (Belgium). The skeleton includes most of the skull, earbones, the dentary, some vertebrae, hyoid, some carpals, scapula, humerus, radius, ulna, some chevrons, and a number of ribs. The supraoccipital is around 570 mm in length and 1070 mm in width (at the level of the posterior end of the lambdoid crest). The transverse diameter across the occipital condyles and the foramen magnum is 240 mm. The specimen is gigantic in size. The rostrum shows long ascending processes of the maxillae with have balaenopterid-like shapes. The periotic has balaenopterid-like characters in the shape of the anterior process and of the pars cochlearis. However, differing from Balaenopteridae, the supraorbital processes of the frontal are narrow. Compared to other balaenopterids, this specimen shows clear affinities with 'Balaenoptera' borealina, a taxon based on fragmentary materials. This specimen adds new morphological information to the study of balaenopterid systematics and phylogeny. A phylogenetic analysis revealed that it was close to 'Balaenoptera' siberi and that both were well nested within Balaenopteridae. Thanks!  Good to see that the alleged titan whale finally gets described. |
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blaze
Paleo-artist
Posts: 766
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Post by blaze on Sept 20, 2014 12:06:27 GMT 5
A thing I find interesting is Bathygnathus borealis, an sphenacondontid from Canada that is recovered as a derived "Dimetrodon" in a sister relationship with D. grandis, this has interesting implications, Bathygnathus has precedence over Dimetrodon which means the later has to go (!) or, as some has suggested, the genus Dimetrodon is in serious need of a revision, how many species are out there? over 10 IIRC.
Also... deja vu? there's an abstract that seems to be talking about Qianzhousaurus but talks about it as if it was a completely new discovery.
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Post by creature386 on Sept 20, 2014 13:09:38 GMT 5
vertpaleo.org/PDFS/12/12eac501-094d-4b15-b786-521e5f855d58.pdfHere are more details about what will happen (they will talk more about Archaeopteryx, Temnospondyls and such). That being said, the new findings of last year were somewhat more shocking, but you can't expect them to be that cool every year. I am excited nonetheless.
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Post by theropod on Sept 20, 2014 18:17:20 GMT 5
This one is definitely among my favourites: vertpaleo.org/PDFS/6d/6d0f67fb-c8d9-4689-80e0-7c5944d9a744.pdfOn a serious note, that B. sibbaldina sounds great, I’m really looking forward to the description. Finally we’re going to know a bit more about it! There appears to be a lot about Archaeopteryx in there, but I haven’t come round to look at all of it yet, but one of the abstracts states that all Archaeopteryx specimens are immature. There’s also a lot of new stuff on other theropods, including Sciurumimus, Limusaurus, Elmisaurus and Deinocheirus. There’s also an abstract on Spinosaurus, but obviously there’s nothing in it that’s not in the paper. Then, there’s a pneumatic Alamosaurus pubis, which means that now all three pelvic elements have been found to be pneumatised in some sauropods. Btw how can someone be "chastised" for discussing publicly available abstracts? |
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Fragillimus335
Member
Sauropod fanatic, and dinosaur specialist
Posts: 573
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Post by Fragillimus335 on Sept 22, 2014 9:06:26 GMT 5
The description of the Broome Ichnofauna looks interesting.
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Post by coherentsheaf on Sept 22, 2014 10:25:06 GMT 5
Hello, While risking being chastised by Cau again, I would like to discuss the abstracts of this years meeting. What happened with Cau? I must have missed it. |
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stomatopod
Junior Member
Gluttonous Auchenipterid
Posts: 182
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Post by stomatopod on Sept 22, 2014 12:09:30 GMT 5
Well in a post he complained about people distributing and discussing information from the abstracts. As I know which sites he seems to check and I was the one who distributed the info to like 4 sites he was clearly including me in his post.
I still cannot fully understand his reasoning and it had part of that ivory Tower/holier than you vibe.
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Post by creature386 on Sept 22, 2014 19:34:32 GMT 5
I remember when I put all the abstracts in a spoiler after that information had been posted by someone. Unfortunately, this is not possible here.
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Derdadort
Junior Member
Excavating rocks and watching birds
Posts: 267 
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Post by Derdadort on Sept 24, 2014 18:00:59 GMT 5
There appears to be a lot about Archaeopteryx in there, but I haven’t come round to look at all of it yet, but one of the abstracts states that all Archaeopteryx specimens are immature. I guess there will be something about Wellnhoferia. The museum of Solnhofen did some kind of "expensive research" in corporation with BBC resulting in the "Solnhofen specimen" and maybe another one are in fact their own genus, called Wellnhoferia. Counting two species of Archaeopteryx this would be the third known species of Urvögel in the Solnhofen archipelago. As far as I know from a prime source, there is no published paper so far. But this was also nearly a month ago. |
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Post by theropod on Sept 24, 2014 18:19:46 GMT 5
But Wellnhoferia exists for quite some time now: www.app.pan.pl/archive/published/app46/app46-519.pdfAlso, there are probably two or more species of Archaeopteryx, but the most recent analysis ( link→) considered A. bavarica a junior synonym of A. simensii (Funny enough for some reason I always associate the Berlin specimen with A. lithographica). |
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Derdadort
Junior Member
Excavating rocks and watching birds
Posts: 267
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Post by Derdadort on Sept 24, 2014 18:55:25 GMT 5
Wellnhoferia isn't in fact completely new, if I'm remebering right there were always some uncertainity about the validity of Wellnhoferia. But now it should be certain that at least one Urvogel isn't an Archaeopteryx(something about skull morphology and Wellnhoferia is quite larger than Archaeopteryx)
Btw. this is interesting, too:
If this is true, nearly all known theropod fossils of the German limestone are from immatures. Wellnhoferia would be so far the only exception (provided it's really an adult).
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