New Theropod Dinosaur Material from the Haţeg Basin (Late Cretaceous, Western Romania)

1996 ◽  
Vol 200 (3) ◽  
pp. 387-404 ◽  
Author(s):  
D. B. Weishampel ◽  
C.-M. Jianu
Keyword(s):  
Late Cretaceous ◽  
Theropod Dinosaur ◽  
Western Romania ◽  
Haţeg Basin

Parataxonomic classification of ornithoid eggshell fragments from the Oldman Formation (Judith River Group; Upper Cretaceous), southern Alberta

1996 ◽  
Vol 33 (12) ◽  
pp. 1655-1667 ◽  
Author(s):  
Darla K. Zelenitsky ◽  
L. V. Hills ◽  
Philip J. Currie
Keyword(s):  
Late Cretaceous ◽  
Shell Thickness ◽  
Upper Cretaceous ◽  
Theropod Dinosaur ◽  
Surface Sculpture ◽  
External Zone ◽  
Theropod Dinosaurs ◽  
Southern Alberta ◽  
The Family

Examination of a large number of eggshell fragments collected from the Oldman Formation of southern Alberta reveals a greater ootaxonomic diversity than is known from complete eggs or clutches. Three new oogenera and oospecies of the ornithoid-ratite morphotype and one of the ornithoid-prismatic morphotype are established, based on the eggshell fragments. Porituberoolithus warnerensis oogen. et oosp. nov. and Continuoolithus canadensis oogen. et oosp. nov. have a microstructure similar to that of elongatoolithid eggs of theropod dinosaurs. Tristraguloolithus cracioides oogen. et oosp. nov. and Dispersituberoolithus exilis oogen. et oosp. nov. possess an external zone and thus have a microstructure like modern avian eggshell. Tristraguloolithus has a shell thickness, microstructure, and surface sculpture similar to those of recent bird eggshell of the family Cracidae (order Galliformes). Dispersituberoolithus exhibits the primitive or normal eggshell condition of some recent neognathous avian taxa. The ootaxa described indicate a diversity of both avian and theropod dinosaur egg layers within Devil's Coulee and Knight's Ranch, southern Alberta, during the Late Cretaceous.

Stable isotope and mineralogical investigations on clays from the Late Cretaceous sequences, Haţeg Basin, Romania

2009 ◽  
Vol 45 (3) ◽  
pp. 155-163 ◽  
Author(s):  
Ana-Voica Bojar ◽  
Franz Ottner ◽  
Hans-Peter Bojar ◽  
Dan Grigorescu ◽  
Aurel Perşoiu
Keyword(s):  
Stable Isotope ◽  
Late Cretaceous ◽  
Haţeg Basin

A new madtsoiid snake from the Upper Cretaceous of the Haţeg Basin, western Romania

2013 ◽  
Vol 33 (5) ◽  
pp. 1100-1119 ◽  
Author(s):  
Ştefan Vasile ◽  
Zoltán Csiki-Sava ◽  
Márton Venczel
Keyword(s):  
Upper Cretaceous ◽  
Western Romania ◽  
Haţeg Basin

A new abelisauroid theropod from northwestern Patagonia

2006 ◽  
Vol 43 (9) ◽  
pp. 1283-1289 ◽  
Author(s):  
Rodolfo A Coria ◽  
Philip J Currie ◽  
Ariana Paulina Carabajal
Keyword(s):  
Early Cretaceous ◽  
Late Cretaceous ◽  
First Record ◽  
South American ◽  
Middle Section ◽  
Theropod Dinosaur ◽  
Channel Deposits

The Argentinean record of abelisauroid theropods begins in the Early Cretaceous (Ligabueino) and spans most of the Late Cretaceous, from Cenomanian (Ilokelesia, Xenotarsosaurus, and Ekrixinatosaurus) to Campanian–Maastrichtian (Abelisaurus, Carnotaurus, Aucasaurus, and Noasaurus). A fragmentary specimen of a theropod dinosaur was collected in 2000 from the middle section of the Lisandro Formation (Turonian?) at Cerro Bayo Mesa, Neuquén Province, Argentina. The fossil-bearing level, which is part of the Lisandro Formation that also yielded the remains of the basal ornithopod Anabisetia saldiviai, corresponds to a reddish, massive mudstone linked with fluvial channel deposits. The theropod identified as MCF-PVPH-237 is an abelisauroid theropod that increases our knowledge about the evolution of South American Abelisauroidea and is the first record of this clade from the Lisandro Formation.

New theropod dinosaur from the late Cretaceous of Brazil improves abelisaurid diversity

2021 ◽  
pp. 103551
Author(s):  
Fabiano Vidoi Iori ◽  
Hermínio Ismael de Araújo-Júnior ◽  
Sandra A. Simionato Tavares ◽  
Thiago da Silva Marinho ◽  
Agustín G. Martinelli
Keyword(s):  
Late Cretaceous ◽  
Theropod Dinosaur
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