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[dinosaur] Magnamanus, new ornithopod from Spain + Grallator theropod tracks from Late Jurassic of Asturias + dinosaur eggs from Cameros Basin, Spain (free pdfs)




Ben Creisler
bcreisler@gmail.com


A big update. The second 2016 issue 31(2) of the open access Spanish Journal of Palaeontology is now online with free pdfs of the official versions of the papers:

http://sepaleontologia.es/ultimo-numero/

(The first 2016  issue 31(1) is still not posted but does not  have any vertebrate-related papers.)

The official date for Magnamanus is given as 2016.


Magnamanus soriaensis nov. gen. nov. sp.  


Carolina Fuentes Vidarte, Manuel Meijide Calvo, Federico Meijide Fuentes & Manuel Meijide Fuentes (2016) 
Un nuevo dinosaurio estiracosterno (Ornithopoda: Ankylopollexia) del Cretácico Inferior de España. [A new styracosternan dinosaur (Ornithopoda: Ankylopollexia) from the Lower Cretaceous of Spain]
Spanish Journal of Palaeontology  31(2):  407-446
http://sepaleontologia.es/wp-content/uploads/2017/02/10%20Fuentes-Vidarte%20et%20al%20ok.pdf


The Zorralbo I site from the Lower Cretaceous (upper Hauterivian/lower Barremian of the Golmayo Formation), located in Golmayo municipality (Soria, Spain), has yielded diverse material belonging to four types of dinosaurs: ornithopods, ankylosaurids (Polacanthus sp.), sauropods (Titanosauriform) and theropods (Allosauroidea and Dromaeosauridae), crocodiles (Goniopholis sp.) and an undetermined turtle. 

In this paper, we analyze the material belonging to a new iguanodontian dinosaur, a medium-sized quadrupedal specimen (9-10 m long) weighing three tonnes, that exhibits a number of morphological and biometric features that set it apart from already known iguanodontians: 1) the coronoid process is a prolongation of the dentary, being the last dental alveolus in front the coronoid process instead of at its base; 2) the length of the scapula is six times its distal width and seven times its minimum width; 3) the acromial process is facing the posterior protuberance; 4) in the humerus, the inner tuberosity is not aligned with the ulnar condyle and the radial condyle sits above the ulnar condyle; 5) in the ulna, the distal end is wider than the proximal end and it is mace-shaped; 6) in the radius, the distal end is also mace-shaped; 7) the carpus is made up of three components (carpals I, II and III, radiale and intermediale) (ulnare and carpal IV) (carpal V); 8) the phalangeal formula is 1-3-3-2- (3-4); the width of the  wrist is equivalent to 70 % of the hand length; 9) straight prepubis without distal widening or grooves and in the base of the post-pubic ramus, the obturator foramen is open and semi-covered by a mesial fl at bone plate. 

The combination of these features and the differences between this specimen and all other iguanodontian genera to which it has been compared lead to the conclusion that it is indeed a new genus within this dinosaur group. We propose the name Magnamanus soriaensis nov. gen. nov. sp.  

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pdfs of official versions of the two other dino-related papers:

Diego Castanera, Laura Piñuela & José Carlos García-Ramos (2016)
Grallator theropod tracks from the Late Jurassic of Asturias (Spain).[Icnitas de terópodo Grallator del Jurásico Superior de Asturias (España): implicaciones taxonómicas]
Spanish Journal of Palaeontology  31(2):  283-296
http://sepaleontologia.es/wp-content/uploads/2017/02/3-Castanera-et-al-ok.pdf

**

Miguel Moreno Azanza, José Manuel Gasca, Ignacio Díaz Martínez, Blanca Bauluz Lázaro, José Ignacio Canudo Sanagustín, Arturo Fernández & Félix Pérez-Lorente (2016)
A multi-ootaxic assemblage from the Lower Cretaceous of the Cameros Basin (La Rioja; Northern Spain). [Una asociación multi-ootáxica del Cretácico Inferior de la Cuenca de Cameros (La Rioja; Norte de España)]. 
Spanish Journal of Palaeontology 31(2):  305-320
http://sepaleontologia.es/wp-content/uploads/2017/02/5-Moreno-Azanza-et-al-ok.pdf


---------- Forwarded message ----------
From: Ben Creisler <bcreisler@gmail.com>
Date: Sat, Jan 28, 2017 at 12:10 PM
Subject: New Spanish ornithopod? + Grallator theropod tracks from Late Jurassic of Asturias + dinosaur eggs from Cameros Basin, Spain (free pdfs)
To: dinosaur-l@usc.edu




Ben Creisler
bcreisler@gmail.com


There is a new issue of the Spanish Journal of Palaeontology with dinosaur-related papers. 


https://dialnet.unirioja.es/ejemplar/449046

However, the official versions of the papers apparently have not yet been posted yet to the open access website:


http://sepaleontologia.es/numeros-anteriores-2/


==

I can't  find more info on this paper or a pdf link at the moment, but the title suggests that it names and describes a new ornithopod dinosaur taxon.

Carolina Fuentes Vidarte, Manuel Meijide Calvo, Federico Meijide Fuentes, Manuel Meijide Fuentes (2016) [2017]
Un nuevo dinosaurio estiracosterno (Ornithopoda: Ankylopollexia) del Cretácico Inferior de España. [A new styracosternan dinosaur (Ornithopoda: Ankylopollexia) from the Lower Cretaceous of Spain]
Spanish Journal of Palaeontology  31(2):   407-446


If I get more information, I will pass it on.



****
In the meantime, here are links to pdfs of the manuscript versions for two of the new papers:



Diego Castanera, Laura Piñuela & José Carlos García-Ramos (2016)
Grallator theropod tracks from the Late Jurassic of Asturias (Spain).
Spanish Journal of Palaeontology  31(2):  283-296

The MUJA (Museo del Jurásico de Asturias, Jurassic Museum of Asturias) has an interesting collection of theropod tracks that show similarities with the ichnogenera assigned to  the Eubrontes-Grallator plexus. In this paper we describe in detail the morphology of specimens recovered from different localities on the “Dinosaur Coast” of Asturias, plus four  specimens preserved in outcrops in the sea cliffs of Les Vinaes (Villaviciosa). All the specimens  are from the outcrops of the Lastres Formation, which is Kimmeridgian in age. The general morphology of the tracks, the footprint length-width ratio, the mesaxony, low divarication of the digits (II-IV) and the absence of hallux and metatarsophanlageal impressions suggest that the tracks are more similar to Grallator than to any other theropod ichnotaxa. Geometric morphometric analysis (principal component analysis, PCA) based on 2D landmark techniques  suggests that they differ from Kalohipus bretunensis (as yet the only Grallator-like ichnotaxon  described in the Iberian Peninsula) mainly in the divarication angles and in the projection of  digit III. 




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Miguel Moreno Azanza, José Manuel Gasca, Ignacio Díaz Martínez, Blanca Bauluz Lázaro, José Ignacio Canudo Sanagustín, Arturo Fernández & Félix Pérez-Lorente (2016)
A multi-ootaxic assemblage from the Lower Cretaceous of the Cameros Basin (La Rioja; Northern Spain). [Una asociación multi-ootáxica del Cretácico Inferior de la Cuenca de Cameros (La Rioja; Norte de España)]. 
Spanish Journal of Palaeontology 31(2):  305-320.
http://www.sepaleontologia.es/revista/files/1447618682.pdf


Here we describe El Horcajo, a new multiootaxic assemblage in the vicinity of Trevijano (La Rioja, Spain). It is located in the palustrine facies of the Enciso Group (Cameros Basin). This new locality has provided dozens of eggshell fragments, together with other vertebrate remains and charophyte fructifications, which allow dating of the locality as Valanginian-Hauterivian. Five ootaxa have being recognized: 1) the Spheroolithidae Guegoolithus turolensis; 2) a surprisingly thick Prismatoolithidae indet., with certain affinities to the oogenus Sankofa and which may represent a new oogenus and oospecies for this oofamily; 3) the Krokolithidae Krokolithes sp.; 4) recrystallized ?Testudoolithidae eggshells; and 5) ?Geckoolithidae eggshells of uncertain affinity. This oodiversity is similar to that of other eggshell microsites. The ootaxonomic list differs from the other Iberian locality of the same age, Pochancalo 1, Villanueva de Huerva Formation, in lacking sauropod and megalosaurid theropod eggshells, but shares the presence the ornithopod and coelurosaurian theropod eggshells with other younger microsites found in similar facies. These new locality has immediate consequences for the tectono-sedimentary framework of the Cameros Basin and the reliability of eggshells as biostratigraphic markers, as challenges both the age of the Enciso Group and the viability of Guegoolithus as a guide fossil for the lower Barremian. 


Blog post:

http://www.aragosaurus.com/?seccion=news_full&id=1665&titular=Saliendo%20del%20huevo%20al%20principio%20del%20Cret%C3%A1cico


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