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Revista del Museo Argentino de Ciencias Naturales
Article . 2007 . Peer-reviewed
Data sources: Crossref
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https://dx.doi.org/10.60692/dq...
Other literature type . 2007
Data sources: Datacite
https://dx.doi.org/10.60692/7k...
Other literature type . 2007
Data sources: Datacite
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Skin impressions of Tehuelchesaurus (Sauropoda) from the Upper Jurassic of Patagonia

الانطباعات الجلدية للتيهولشورس (الصروبودا) من العصر الجوراسي العلوي في باتاغونيا
Authors: Olga Giménez;

Skin impressions of Tehuelchesaurus (Sauropoda) from the Upper Jurassic of Patagonia

Abstract

La majeure partie du squelette post-crânien du dinosaure sauropode, Tehuelchesaurus benitezii, recueilli dans la formation de Cañadón Calcáreo (Jurassique supérieur) dans la vallée de la rivière Chubut, comprend plusieurs fragments d'empreintes cutanées, qui correspondent à différentes parties du corps, telles que des parties des membres antérieurs, des régions scapulaires et du thorax. Les échantillons de peau les plus représentatifs (type I) sont constitués d'écailles tuberculeuses non chevauchantes de forme hexagonale (3 cm de long - 2,4 cm de large), alternant avec des écailles plus petites (2 cm de long - 1,5 cm de large) disposées en rosace. D'autres échantillons d'écailles (type II) sont similaires aux premiers, mais de taille plus petite, affichant des formes rhomboïdales disposées également en rosace. Cette découverte représente une occasion unique d'améliorer la connaissance de l'aspect externe des dinosaures non aviaires.

La mayor parte del esqueleto postcraneal del dinosaurio saurópodo Tehuelchesaurus benitezii, recogido de la Formación Cañadón Calcáreo (Jurásico Superior) en el valle del río Chubut, incluye varios fragmentos de impresiones cutáneas, que corresponden a diferentes partes del cuerpo, como porciones de extremidades anteriores, regiones escapulares y del tórax. Las muestras de piel más representativas (Tipo I) consisten en escamas tuberculosas no superpuestas de forma hexagonal (3 cm de largo - 2,4 cm de ancho), alternando con otras más pequeñas (2 cm de largo - 1,5 cm de ancho) dispuestas en un patrón de roseta. Otras muestras de escala (Tipo II) son similares a las primeras, pero de menor tamaño, mostrando formas romboidales dispuestas también en un patrón de roseta. Este descubrimiento significa una oportunidad única para mejorar el conocimiento del aspecto externo de los dinosaurios no aviares.

Most of the postcranial skeleton of the sauropod dinosaur, Tehuelchesaurus benitezii, collected from the Cañadón Calcáreo Formation (Upper Jurassic) in the Chubut River valley, includes several fragments of skin impressions, which correspond to different parts of the body, such as portions of forelimbs, scapular and thorax regions. The most representative skin samples (Type I) consist of non-overlapping tubercular scales of hexagonal shape (3 cm long - 2,4 cm width), alternating with smaller ones (2 cm long - 1,5 cm width) disposed in a rosette pattern. Other scale samples (Type II) are similar to the first ones, but smaller in size, displaying rhomboidal shapes disposed also in a rosette pattern. This discovery means an unique opportunity to improve the knowledge of the external aspect of non-avian dinosaurs.

معظم الهيكل العظمي بعد الجمجمة لديناصور الصربوديات، Tehuelchesaurus benitezii، الذي تم جمعه من تكوين Cañadón Calcáreo (الجوراسي العلوي) في وادي نهر Chubut، يتضمن عدة أجزاء من الانطباعات الجلدية، والتي تتوافق مع أجزاء مختلفة من الجسم، مثل أجزاء من الأطراف الأمامية والكتف ومناطق الصدر. تتكون عينات الجلد الأكثر تمثيلاً (النوع الأول) من مقاييس درنية غير متداخلة ذات شكل سداسي (طول 3 سم - عرض 2,4 سم)، بالتناوب مع عينات أصغر (طول 2 سم - عرض 1,5 سم) موضوعة بنمط وردة. تتشابه عينات القشور الأخرى (النوع الثاني) مع العينات الأولى، ولكنها أصغر حجمًا، وتظهر أشكالًا معينة الشكل موضوعة أيضًا في نمط الوردة. هذا الاكتشاف يعني فرصة فريدة لتحسين المعرفة بالجانب الخارجي للديناصورات غير الطيرية.

Keywords

Cartography, Scale (ratio), Postcrania, Immunology, Cretaceous, Sauropoda, Rosette (schizont appearance), Biology, Global and Planetary Change, Crystallography, Hexagonal crystal system, Geography, FOS: Clinical medicine, Paleontology, Geology, Evolutionary Dynamics of Mammals and Their Ancestors, FOS: Earth and related environmental sciences, Global Amphibian Declines and Extinctions, Earth and Planetary Sciences, Chemistry, Physical Sciences, Environmental Science, Evolutionary History and Diversity of Dinosaurs, Taxon, Anatomy

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
13
Top 10%
Average
Average
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