Dinosaur tracks and swimming traces from Spain + carcharodontosaurid tooth from South Korea + Franz Nopcsa + more

[Ben Creisler]

Ben Creisler

bcre...@gmail.com

Some recent or not yet mentioned dino papers:

Free pdf:

Esperanza García Ortiz & Félix Pérez Lorente (2023)
Nuevas observaciones (pisadas y marcas de natación de dinosaurios) en el yacimiento de La Cela (Muro en Cameros, La Rioja, Españá)
[New findings (dinosaur footprints and swimming traces) at the La Cela site (Muro en Cameros, La Rioja, Spain)]
Zubía 41: 83-124 (in Spanish)
https://dialnet.unirioja.es/servlet/articulo?codigo=9550206

The Cameros Basin (Northern Spain) is one of the most prolific places in the world to study dinosaur footprints. During the last decade, works have continued to be published, with new findings and diferent PhD investigations carried out, which has meant an in-depth review of the territory. This paper shows the new findings resulting from the review of the site known as La Cela, located in the town of Muro en Cameros. In this place, new traces of different ichnotypes and swimming marks have been documented in outcrops belonging to the Oncala group, being the first swimming marks found at this lithostratigraphic level.

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From 2020 but not yet mentioned:

Free pdf:

Chan-gyu Yun (2020)
A Carcharodontosaurid tooth from the Hasandong Formation (Lower Cretaceous) of South Korea
Mongolian Geoscientist 50: 2-10
DOI: https://doi.org/10.5564/mgs.v50i0.1325
https://www.mongoliajol.info/index.php/MGS/article/view/1325

A large tooth of theropod dinosaur that was recovered from the Hasandong Formation (Lower Cretaceous; Aptian-Albian) in Daedo island, Hadong Couty, South Gyeongsang Province of South Korea is redescribed. Although the tooth was misidentified as a "Prodeinodon"-like megalosaurid theropod at the first time, detailed comparisons with known theropod dentition anatomy strongly indicate that this tooth belongs to an Acrocanthosaurus-like basal carcharodontosaurid theropod. This referral is supported by its combination of large size, ovoid-shaped cervix outline, mesial carina that does not reach the cervix, labially displaced distal carina and large number of denticles. This tooth is different from other carcharodontosaurid teeth from the same formation in several anatomical aspects (e.g., smaller overall size, presence of transverse lines adjacent to the distal carina, presence of interdenticular sulci in distal carina, denticle densities, crown basal ratio), indicating that carcharodontosaurid diversity in the Early Cretaceous of Korea could have been higher, although these differences may represent positional or individual variations. The presence of Acrocanthosaurus-like theropod teeth (e.g., "Prodeinodon", "Wakinosaurus") from early Cretaceous deposits (Valanginian-Cenomanian) of South Korea, Japan, Mongolia and China indicates that North American Acrocanthosaurus atokensis possibly represents a form that immigrated from the Asia.

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Free pdf:

Eric Buffetaut (2024)
Franz Nopcsa’s researches on French Palaeontological Pollections.
Historia Natural (tercera serie) 14(1): 31-51.
https://fundacionazara.org.ar/img/revista-historia-natural/tercera-serie-volumen-14-1-2024/HN_14_1_31-51.pdf


An often overlooked aspect of the palaeontological researches of Franz Nopcsa (1877-1933) is his work on various fossil vertebrates kept in French institutions. Although Nopcsa disliked the French, he travelled to France on several occasions, both before and after World War I, to study specimens in Paris, Le Havre, Lyon and Marseille (and possibly Boulogne-sur-mer). His publications on material in French collections include papers on Cretaceous turtles, Cretaceous and Eocene crocodilians and Jurassic and Cretaceous dinosaurs. His work on armoured dinosaurs, including a Late Jurassic partial stegosaur skeleton from Normandy and Late Cretaceous ankylosaur remains from southern France, are especially significant because he correctly interpreted specimens that had previously been misidentified by French palaeontologists. Although they form a relatively small part of his considerable scientific production, these studies were valuable contributions to our knowledge of French Mesozoic vertebrates.

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Free pdf:

Sergio Bogan, Agustín G. Martinelli, Federico L. Agnolín, Ignacio M. A. Legari & Nicolás A. Valentini (2024)
Florentino Ameghino y el cráneo del Tyrannosaurus rex del Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”.
[Florentino Ameghino and the skull of Tyrannosaurus rex in the Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”]
Historia Natural (tercera serie) 14(1): 79-92.
https://fundacionazara.org.ar/img/revista-historia-natural/tercera-serie-volumen-14-1-2024/HN_14_1_79-92.pdf

Tyrannosaurus rex is one of the most popular dinosaurs in the world. It inhabited North America during the late Cretaceous, and a large number of specimens are known from USA. The aim of present contribution is to inquire information about a T. rex skull cast that is exhibited in the Vertebrate Paleontology Hall at the Museo Argentino de Ciencias Naturales “Bernardino Rivadavia” (MACN), at Buenos Aires, Argentina. Research in the historical archive resulted in the finding of a letter by Florentino Ameghino which indicates that the specimen was bought by the MACN to the American Museum of Natural History in 1910, by means of its intermediate, the well-known paleontologist W.D. Matthew. A brief analysis of the evolution of the dinosaur exhibition at the MACN Vertebrate Paleontology Hall is also included.

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