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

[dinosaur] Redefining dinosaurs + rethinking Archaeopteryx + lost Applachia + more





Ben Creisler
bcreisler@gmail.com


Some recent items:



New fossils are redefining what makes a dinosaur


https://www.sciencenews.org/article/new-fossils-are-redefining-what-makes-dinosaur


====



Archaeopteryx rethink


https://www.theguardian.com/science/2018/feb/21/the-new-specimen-forcing-a-radical-rethink-of-archaeopteryx


====

New Research Sheds Light on Dinosaurs of âLost Landmassâ of Appalachia

http://www.sci-news.com/paleontology/dinosaurs-lost-landmass-appalachia-05747.html

https://thetetanuraeguy.wordpress.com/2018/02/09/paper-published-appalachian-dinosaur-biogeography-and-ecology/


====


Africa's rich fossil finds should get the air time they deserve


https://theconversation.com/africas-rich-fossil-finds-should-get-the-air-time-they-deserve-91849

===


Biodiversity of Cretaceous theropods in Spain


Nuevas aportaciones a la biodiversidad de los terÃpodos barremienses de EspaÃa (in Spanish)


http://www.aragosaurus.com/?seccion=news_full&id=1709


===

Eogranivora -- Cretaceous Bird Clarifies Early Trophic Evolution in the Ornithuromorpha



http://english.ivpp.cas.cn/rh/rp/201801/t20180131_189784.html




====


Discovering species on the shelves


https://canadianmuseumofnature.wordpress.com/2018/02/21/discovering-species-on-the-shelves/


===


Ankylosaurs croak, bloat and float


http://www.sciencemag.org/news/2018/02/most-ankylosaurs-were-fossilized-belly-now-scientists-think-they-know-why


====


John Hutchinson talk in SeattleÂ

Dinosaur Movement: From Humble Beginnings to Earth-Shaking Giants
Friday, March 2, 2018 7 PM

http://www.burkemuseum.org/calendar/dinosaur-movement-humble-beginnings-earth-shaking-giants


===

We Asked Your Childâs Favorite Dinosaur Expert Why Grand Staircase Is Worth Defending

Dr. Scott Sampson tells what it's like to discover dinosaur fossils in a national monument that Trump is trying to gut.


https://earthjustice.org/blog/2018-february/we-asked-your-child-s-favorite-dinosaur-expert-why-grand-staircase-is-worth-defending

Â

=====

Tracking Cretaceous Birds in South Korea: Goseong Dinosaur Tracks


http://birdsinmud.blogspot.com/2018/02/tracking-cretaceous-birds-in-south_17.html



===========

LANZENDORF-NATIONAL GEOGRAPHIC PALEOART PRIZE

http://vertpaleo.org/Awards/Award-(15).aspx


=====

Land Council of Dinosaurs in state of Coahuila in Mexico formed to promote local dinosaur heritage as "Coahuila, Tierra de Dinosaurios"


Businessman donates Psittacosaurus skeleton with certificate of authenticity (but of murky provenance (China, Russia, Mongolia)?) (in Spanish)

https://www.noticiasdelsoldelalaguna.com.mx/local/instala-riquelme-el-consejo-coahuila-tierra-de-dinosaurios


https://www.vanguardia.com.mx/articulo/recibe-mude-nuevo-fosil-de-dinosaurio-para-promover-coahuila


http://www.milenio.com/cultura/museo_del_desierto-fosil-coahuila_tierra_de_dinosaurios-milenio_noticias-laguna_0_1125487639.html

======

Video

Paleozoic Era --From the Cambrian Explosion to the Great DyingÂ
(However, as noted in comments, Dimetrodon is NOT a herbivore...)


https://www.youtube.com/watch?v=RDQa0okkpf0&t=569s


==

non-dino

Baby thylacines

https://cosmosmagazine.com/biology/revealing-the-baby-thylacine

**

free pdf:

Axel H. Newton, Frantisek Spoutil, Jan Prochazka, Jay R. Black, Kathryn Medlock, Robert N. Paddle, Marketa Knitlova, Christy A. Hipsley, Andrew J. Pask (2018)

Letting the 'cat' out of the bag: pouch young development of the extinct Tasmanian tiger revealed by X-ray computed tomography.

Royal Society Open Science 2018 5 171914

DOI: 10.1098/rsos.171914. Published 21 February 2018

Âhttp://rsos.royalsocietypublishing.org/content/5/2/171914

Â

The Tasmanian tiger or thylacine (Thylacinus cynocephalus) was an iconic Australian marsupial predator that was hunted to extinction in the early 1900s. Despite sharing striking similarities with canids, they failed to evolve many of the specialized anatomical features that characterize carnivorous placental mammals. These evolutionary limitations are thought to arise from functional constraints associated with the marsupial mode of reproduction, in which otherwise highly altricial young use their well-developed forelimbs to climb to the pouch and mouth to suckle. Here we present the first three-dimensional digital developmental series of the thylacine throughout its pouch life using X-ray computed tomography on all known ethanol-preserved specimens. Based on detailed skeletal measurements, we refine the species growth curve to improve age estimates for the individuals. Comparison of allometric growth trends in the appendicular skeleton (fore- and hindlimbs) with that of other placental and marsupial mammals revealed that despite their unique adult morphologies, thylacines retained a generalized early marsupial ontogeny. Our approach also revealed mislabelled specimens that possessed large epipubic bones (vestigial in thylacine) and differing vertebral numbers. All of our generated CT models are publicly available, preserving their developmental morphology and providing a novel digital resource for future studies of this unique marsupial.




Virus-free. www.avg.com