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New evidence of shared dinosaur across Upper Jurassic Proto-North Atlantic: Stegosaurus from Portugal
- Source :
- Naturwissenschaften. 94:367-374
- Publication Year :
- 2006
- Publisher :
- Springer Science and Business Media LLC, 2006.
-
Abstract
- More than one century after its original description by Marsh in 1877, we report in this paper the first uncontroversial evidence of a member of the genus Stegosaurus out of North America. The specimen consists of a partial skeleton from the Upper Jurassic of Portugal, herein considered as Stegosaurus cf. ungulatus. The pres- ence of this plated dinosaur in the upper Kimmeridgian- lower Tithonian Portuguese record and synchronic levels of the Morrison Formation of North America reinforces previous hypothesis of a close relationship between these two areas during the Late Jurassic. This relationship is also supported by geotectonic evidences indicating high proba- bility of an episodic corridor between the Newfoundland and Iberian landmasses. Together, Portuguese Stegosaurus dis- covery and geotectonic inferences could provide a scenario with episodical faunal contact among North Atlantic land- masses during the uppermost Kimmeridgian-lowermost Tithonian (ca. 148-153 Ma ago).
- Subjects :
- Marsh
geography.geographical_feature_category
Portugal
biology
Fossils
Morrison Formation
General Medicine
biology.organism_classification
language.human_language
Dinosaurs
Paleontology
Geography
Genus
Close relationship
language
Animals
Stegosauria
Portuguese
Atlantic Ocean
Phylogeny
Ecology, Evolution, Behavior and Systematics
Subjects
Details
- ISSN :
- 14321904 and 00281042
- Volume :
- 94
- Database :
- OpenAIRE
- Journal :
- Naturwissenschaften
- Accession number :
- edsair.doi.dedup.....05a2914d5932571739369475aefbbbf3