[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: [dinosaur] Pterosaurs + T. rex bite + Allosaurus + multituberculates + cave lion cubs + more



I'm more interested in the "Attenuate 'bristles' fringed the jaws in
two anurognathids ", which recalls the rictal bristles of nightjars.



On Fri, Sep 20, 2019 at 7:27 AM Mike Taylor <sauropoda@gmail.com> wrote:
>
> You can all stand down regarding the Unwin abstract on naked pterosaurus. 
> Consensus at the conference was that it was not particularly persuasive, and 
> even his co-author Dave Martill admitted later in the conference that he 
> wasn't really convinced himself. Maaaybe something will come of it, but 
> unless and until there's a paper, you can all keep restoring your pterosaurs 
> with pycnofibres.
>
> BTW., the abstract for me own talk from that conference is now available as a 
> PeerJ preprint at 
> https://urldefense.proofpoint.com/v2/url?u=https-3A__peerj.com_preprints_27970_&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=PXr7siIoFQjRYWk_92vyTaNoWDCam87VFe58OUKJgmU&e=
>   and maybe more excitingly the actual talk is available at 
> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.youtube.com_watch-3Fv-3DmiGAdey4US0&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=E3TPKmFbefGZPlFmBSvVHwfquVWjFt_NHHBRxb_mP7U&e=
>  
>
> -- Mike.
>
>
> On Thu, 19 Sep 2019 at 21:00, Ben Creisler <bcreisler@gmail.com> wrote:
>>
>>
>> Ben Creisler
>> bcreisler@gmail.com
>>
>> Some recent items:
>>
>> Scientific American October issue
>> Pterosaurs Were Monsters of the Mesozoic Skies by  Michael Habib
>>
>>
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.scientificamerican.com_article_pterosaurs-2Dwere-2Dmonsters-2Dof-2Dthe-2Dmesozoic-2Dskies_&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=fb1HWJ2jg4CfPsOF4oTmLbcRCXkZiVz5UCg2AD_GwEw&e=
>>  
>>
>> ====
>>
>> How Pterosaurs Got Their Wings
>>
>> PBS Eons
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.youtube.com_watch-3Fv-3Dr8GBXhi9A2A&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=_6BTdTBuSiXUmhVTMkZySVO98TGj-hap2mFAk0bozVE&e=
>>  
>>
>> ====
>>
>> However, it's worth noting this abstract (posted yesterday) from the recent 
>> 2019 SVPCA meeting that could throw pterosaur paleoart into reverse...
>> Free pdf:
>> https://urldefense.proofpoint.com/v2/url?u=http-3A__www.svpca.org_years_2019-5Fisle-5Fof-5Fwight_abstracts.pdf&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=quQBTrsTYkj_WKDK70PxgXScJIFHLerB-m3cwfq6fb0&e=
>>  
>>
>> When the Mesozoic got ugly â naked, hairless, (and featherless) pterosaurs
>> DAVID UNWIN  & DAVID MARTILL
>>
>> With key roles in flight, thermoregulation and protection of the body, the 
>> integument was of fundamental importance to pterosaurs. Determination of the 
>> basic anatomy of this structure could provide a range of new insights into 
>> the palaeobiology of these enigmatic volant reptiles. Presently, however, 
>> there are several conflicting hypotheses regarding the construction of the 
>> integument, all founded on limited numbers of specimens, and not one of 
>> which is fully consistent with the available fossil evidence. We have 
>> developed a new model based on investigations of more than 100 specimens all 
>> of which show some form of exceptional preservation. This data set spans the 
>> entire temporal and systematic ranges of pterosaurs and a wide variety of 
>> preservational modes. The model has three principal components: (1) A thin 
>> epidermal layer. The external surface of the integument was glabrous with a 
>> smooth, slightly granular, or polygonal texture. Attenuate 'bristles' 
>> fringed the jaws in two anurognathids and small tracts of filaments may have 
>> adorned the posterior cranium in some pterosaurs. (2) A layer of reticular 
>> and filamentous collagen and of variable thickness and complexity, formed 
>> much of the dermis. Helically wound bundles of collagen fibres 
>> (aktinofibrils), were present throughout all flight patagia. Variation of 
>> aktinofibrils in terms of their dimensions, packing, orientation and 
>> stiffness permitted localized variation in the mechanical properties and 
>> behaviour of the flight patagia which varied from relatively stiff distally 
>> to more extensible and flexible proximally. 'Feather-like' structures 
>> reported in Jeholopterus appear to be partially unraveled or decayed 
>> aktinofibrils. Collagen fibre bundles were also present in footwebs, and in 
>> the integument of the neck and body. These structures have often been 
>> mis-identified as 'hair' (pycnofibres). (3) A deep dermal layer with muscles 
>> fibres, blood vessels and nerves. The pterosaur integument was profoundly 
>> different from that of birds and bats, further emphasizing the sharp 
>> disparity between these volant tetrapods.
>>
>> [What we need is a baby pterosaur in amber to see if it's fuzzy...]
>>
>> ===
>>
>>
>> University of Wisconsin Oshkosh geology major sinks her teeth into T. rex 
>> research (with video)
>>
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__uwosh.edu_today_77054_geology-2Dmajor-2Dsinks-2Dher-2Dteeth-2Dinto-2Dt-2Drex-2Dresearch_&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=PHK9_yYtP62gaeQvU_k6kdumFuoqikfehPEw8ic1ZAM&e=
>>  
>>
>> ==
>>
>> Concordia College "Cobbers" from Minnesota conduct research through dinosaur 
>> dig in Montana and are studying odd Allosaurus find from Wyoming
>>
>> https://urldefense.proofpoint.com/v2/url?u=http-3A__theconcordian.org_2019_09_19_cobbers-2Dconduct-2Dresearch-2Dthrough-2Ddinosaur-2Ddig&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=Id2sdpJzXZHooOw7HIyGMbwVS9xD8vIeQyivETVNPhM&e=
>>  
>>
>> ==
>>
>> How You Can Watch Paleontologists Clean A Triceratops Skull at Cincinnati 
>> Museum Center's Paleontology Lab
>>
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.wvxu.org_post_how-2Dyou-2Dcan-2Dwatch-2Dpaleontologists-2Dclean-2Dtriceratops-2Dskull-23stream_0&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=uKcRWjv8FogEO62YAbq2H1QbGoleL9Zrce72sxtz3mg&e=
>>  
>>
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.wcpo.com_news_local-2Dnews_hamilton-2Dcounty_cincinnati_fossil-2Dextraction-2Dbegan-2Dthursday-2Dmorning-2Dat-2Dcmc&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=f2MCwoTQmnv2onLlKE-ES9xw9T_PU-ULwgsAzR4GdDg&e=
>>  
>>
>> ===
>>
>> Museum of Idaho is wrapping up new renovations and dinosaur exhibit (with 
>> video)
>>
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.localnews8.com_news_kifi-2Dtop-2Dstory_museum-2Dof-2Didaho-2Dis-2Dwrapping-2Dup-2Dnew-2Drenovations-2Dand-2Ddinosaur-2Dexhibit_1122668347&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=qGQwoSquucl76tjxpRNsMpDQAj1WahkV6tEoYCSFRsA&e=
>>  
>>
>> ****
>> Darwin & Dinosaurs exhibit
>>
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__museumofidaho.org_upcoming-2Dexhibits_&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=6xi9vdd9HA4zmRV8vll9lPWxYZ0Sgcm7IzPWgQ2kkNQ&e=
>>  
>>
>> =====
>>
>> International experts work to date dinosaur tracks found near Tarija in 
>> Bolivia (in Spanish)
>>
>> https://urldefense.proofpoint.com/v2/url?u=http-3A__www.eldeber.com.bo_extra_Pisadas-2Dde-2Ddinosaurios-2Ddespiertan-2Dinteres-2Dde-2Dpaleontologos-2Dextranjeros-2D20190915-2D9360.html&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=BeKAO_MuyUxP9QLF1reDBFlgGjCPzfbqUTn7NOgrzm8&e=
>>  
>>
>> ====
>>
>> Dinosaur teeth found at Angeac site in France this summer (in French)
>>
>> https://urldefense.proofpoint.com/v2/url?u=http-3A__petitcarnetpaleo.blogspot.com_2019_09_ang-2D19-2Dratiches-2Dde-2Ddinosaures-2Dangeac.html&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=TpEHjAzNMLcYR-HuXTjD6O-CXtbAGTdFoIlQZsaqWqE&e=
>>  
>>
>> ===
>>
>> Issues around Tanzania's claim to Giraffatitan and other fossils at Berlin 
>> Museum
>>
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.thecitizen.co.tz_news_1840340-2D5279386-2D9cmj0j_index.html&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=PU-LbOxH9XEY6otSXChotzJga5SMWLkWLsuhZyc2mrw&e=
>>  
>>
>> ===
>>
>> The Big 5+ carnivorous dinosaurs of Europe exhibit to open at Museu da 
>> Lourinhà (in Portuguese)
>>
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.alvorada.pt_index.php_lourinha_746-2Dthe-2Dbig-2D5-2Dmuseu-2Dda-2Dlourinha-2Dacolhe-2Dexposicao-2Dcom-2Dos-2Dmaiores-2Ddinossauros-2Dcarnivoros-2Dda-2Deuropa&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=naq9rqqYdb1GuQ8NtRrBMDUXrGypOYjEaxvz6aOizN4&e=
>>  
>>
>> ====
>>
>> Prehistoric crocodile fossil discovered in New Mexico
>>
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__phys.org_news_2019-2D09-2Dprehistoric-2Dcrocodile-2Dfossil-2Dmexico.html&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=mmDpBCJPaLQEib-10UM68uQEP_bjQUItlHhGZ5j5P5I&e=
>>  
>>
>> ===
>>
>>
>> Video
>>
>> Fossil Feature: Multituberculates (from Cretaceous)
>> UC Museum of Paleontology, UCMP
>> with Luke Weaver, PhD Candidate from the University of Washington
>>
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.youtube.com_watch-3Fv-3DGgB7HLoH0I8&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=o16dtSnsREsdysqLozq-XMjITF7uFdEeZFfxgIQOrVQ&e=
>>  
>>
>> ===
>> ===
>>
>> Non-dino...
>>
>>
>> North America Has Lost Nearly 3 Billion Birds Since 1970
>>
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.smithsonianmag.com_science-2Dnature_north-2Damerica-2Dhas-2Dlost-2Dnearly-2D3-2Dbillion-2Dbirds-2D180973178_&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=Y8PWmjxGfUvf3YGhTqXf9_dG2Bspt1u34TQYzJwT4AY&e=
>>  
>>
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.theatlantic.com_science_archive_2019_09_america-2Dhas-2Dlost-2Dquarter-2Dits-2Dbirds-2Dfifty-2Dyears_598318_&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=qQdXcaMf50ZsQNYx-b4BKEtEomEQ0JHOLfWA9khxH8w&e=
>>  
>>
>> ===
>>
>> Cave lion cub mummies found in Siberia reveal new information (with videos)
>>
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__siberiantimes.com_science_casestudy_news_stunning-2Dpictures-2Dof-2Dthe-2Dworlds-2Donly-2Duniquely-2Dpreserved-2Dcave-2Dlion-2Dcubs-2Das-2Dnew-2Dsecrets-2Drevealed_&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=rGsLvjsR8f-agjmoDiWhRUY_EK6V7N-U7U2pa7gIz2A&e=
>>  
>>
>> ====
>>
>> Palorchestes, giant tree-hugger mammal from Australia
>>
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__blogs.scientificamerican.com_laelaps_bizarre-2Dfossil-2Dmammal-2Dwas-2Dan-2Dice-2Dage-2Dtree-2Dhugger_&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=yuWBZnkYKAHdEP1YcU80WyI5E8LA2dJUlcGRppw7d38&e=
>>  
>>
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.atlasobscura.com_articles_australia-2Dice-2Dage-2Dfauna&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=tYFQbvrjjfZJ-Eew3CR36s34RDcc1Br1R0OjscCp5pI&e=
>>  
>>
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__cosmosmagazine.com_palaeontology_megafauna-2Dmore-2Dmega-2Dthan-2Dwe-2Dthought&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=V7u0VKlnlZzQI1gVmgdLsFaMTB2Q39ZHOSMoZ8b1Py8&e=
>>  
>>
>> ===
>>
>> Giant chicken skeleton sculpture in Denver library
>>
>> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.9news.com_article_news_local_next_giant-2Dchicken-2Dsculpture-2Don-2Ddisplay-2Dat-2Ddenver-2Dcentral-2Dlibrary_73-2D4d4438c2-2D6266-2D45ea-2D906a-2D48c6e50783a5&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=vAbQczghWuE22gDqjXoEBhXFRnxlAeLuMWvimsLMUTo&s=Ep_rLuEf-rKEilfwR_1fLetDryZSCSBMTzjnD7zhwJw&e=
>>  
>>
>> Virus-free. www.avg.com