Join for FREE
It only takes a minute!
Zeiss - Always on the lookout for something special – Shop now

Welcome to BirdForum.
BirdForum is the net's largest birding community, dedicated to wild birds and birding, and is absolutely FREE! You are most welcome to register for an account, which allows you to take part in lively discussions in the forum, post your pictures in the gallery and more.

Kookne yeutensis gen. et sp. nov.

Reply
 
Thread Tools Rating: Thread Rating: 1 votes, 5.00 average.
Old Saturday 7th December 2019, 13:32   #1
albertonykus
Registered User

 
Join Date: Jan 2019
Location: United Kingdom
Posts: 13
Kookne yeutensis gen. et sp. nov.

This paper also describes a new ornithopod, Isasicursor santacrucensis, and a new titanosaurian sauropod, Nullotitan glaciaris.

Novas, F., F. Agnolin, S. Rozadilla, A. Aranciaga-Rolando, F. Brissón-Eli, M. Motta, M. Cerroni, M. Ezcurra, A. Martinelli, J. D'Angelo, G. Álvarez-Herrera, A. Gentil, S. Bogan, N. Chimento, J. García-Marsà, G. Lo Coco, S. Miquel, F. Brito, E. Vera, V. Loinaze, M. Fernandez, and L. Salgado (2019)
Paleontological discoveries in the Chorrillo Formation (upper Campanian-lower Maastrichtian, Upper Cretaceous), Santa Cruz Province, Patagonia, Argentina
Revista del Museo Argentino de Ciencias Naturales 21: 217-293
doi: 10.22179/REVMACN.21.655
http://revista.macn.gob.ar/ojs/index...ticle/view/655

The first fossil remains of vertebrates, invertebrates, plants and palynomorphs of the Chorrillo Formation (Austral Basin), about 30km to the SW of the town of El Calafate (Province of Santa Cruz), are described. Fossils include the elasmarian (basal Iguanodontia) Isasicursor santacrucensis gen. et sp. nov., the large titanosaur Nullotitan glaciaris gen. et sp. nov., both large and small Megaraptoridae indet., and fragments of sauropod and theropod eggshells. The list of vertebrates is also composed by the Neognathae Kookne yeutensis gen. et sp. nov., two isolated caudal vertebrae of Mammalia indet., and isolated teeth of a large mosasaur. Remains of fishes, anurans, turtles, and snakes are represented by fragmentary material of low taxonomical value, with the exception of remains belonging to Calyptocephalellidae. On the other hand, a remarkable diversity of terrestrial and freshwater gastropods has been documented, as well as fossil woods and palinological assemblages. The Chorrillo Formation continues south, in the Las Chinas River valley, southern Chile, where it is called Dorotea Formation. Both units share in their lower two thirds abundant materials of titanosaurs, whose remains cease to appear in the upper third, registering only elasmarians (Chorrillo Formation) and hadrosaurs (Dorotea Formation). Above both units there are levels with remains of invertebrates and marine reptiles. It is striking that the dinosaurs of the lower two thirds of the Chorrillo and Dorotea formations are represented by large basal titanosaurs and Megaraptoridae coelurosaurs, being the Saltasaurinae and Aeolosaurinae sauropods and Abelisauridae theropods totally absent. In contrast, these taxa are dominant components in sedimentary units of central and northern Patagonia (e.g., Allen, Los Alamitos, La Colonia formations). Such differences could reflect, in part, a greater antiquity (i.e., late Campanian-early Maastrichtian) for the Chorrillo fossils, or, more probably, different environmental conditions. Thus, knowledge of the biota of the southern tip of Patagonia is expanded, particularly those temporarily close to the K-Pg boundary.
albertonykus is offline  
Reply With Quote
Old Saturday 7th December 2019, 17:35   #2
Fred Ruhe
Registered User

 
Join Date: Feb 2010
Location: Diemen
Posts: 1,688
For those interested, the complete paper can ve found here:

https://drive.google.com/file/d/14cn...?usp=drive_web

Fred (thanks to Albert Chen)
Fred Ruhe is offline  
Reply With Quote
Old Saturday 7th December 2019, 20:21   #3
Fred Ruhe
Registered User

 
Join Date: Feb 2010
Location: Diemen
Posts: 1,688
SYSTEMATIC PALEONTOLOGY

Aves Linnaeus, 1758
Ornithurae Haeckel, 1866
Kookne yeutensis nov. gen. et sp.

Holotype. MPM 21550, incomplete right coracoid lacking sternal end and proximal end damaged

Etymology. “Kookne”, mythological swan companion of the Aonikenk hero Elal; and yeutensis, from “yeut”, “mountain” in Aonikenk language.

Type locality. Titanosaur tibia site (locality 2): This place provided a single, well preserved titanosaur tibia, titanosaur eggshells, sauropod teeth, theropod eggshells, avian coracoid, snake vertebra, and fish teeth. This site yielded the woods described above. Stratigraphically it corresponds to the lower third of the Chorrillo Formation.

Age. The Chorrillo Formation Upper Cretaceous, Campanian-Maastrichtian.

Fred

Last edited by Fred Ruhe : Sunday 8th December 2019 at 05:10.
Fred Ruhe is offline  
Reply With Quote
Advertisement
Reply


Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off



Fatbirder's Top 1000 Birding Websites

Help support BirdForum

Page generated in 0.17325091 seconds with 16 queries
All times are GMT. The time now is 16:26.