A new narrow-gauge sauropod trackway from the Cenomanian Candeleros Formation, northern Patagonia, Argentina
Dinosaurs are extremely abundant in the Upper Cretaceous Neuquén Group of the Neuquén Basin (Argentina). Nevertheless, while osteological remains are rich the ichnological record is more restricted. A new sauropod dinosaur trackway with five manus-pes imprint sets discovered in the Cenomanian Candel...
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2019
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01956671_v96_n_p70_Heredia http://hdl.handle.net/20.500.12110/paper_01956671_v96_n_p70_Heredia |
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paper:paper_01956671_v96_n_p70_Heredia |
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paper:paper_01956671_v96_n_p70_Heredia2023-06-08T15:20:24Z A new narrow-gauge sauropod trackway from the Cenomanian Candeleros Formation, northern Patagonia, Argentina Narrow-gauge trackway Neuquén Basin Rebbachisauridae Sauropod footprints Upper Cretaceous Cenomanian dinosaur footprint fossil record ichnology osteology trackway Argentina Neuquen Basin Patagonia Dinosauria Sauropoda Dinosaurs are extremely abundant in the Upper Cretaceous Neuquén Group of the Neuquén Basin (Argentina). Nevertheless, while osteological remains are rich the ichnological record is more restricted. A new sauropod dinosaur trackway with five manus-pes imprint sets discovered in the Cenomanian Candeleros Formation is described here. The trackway belongs to the narrow-gauge type that is identified for the first time in the Cenomanian and possibly for the Late Cretaceous. It is preserved as concave epirelief in fine-grained sandstones from floodplain deposits. The tracks, which are large in size (average length of 98 cm), include conspicuous rims with very well-preserved symmetrical ripples on top that are documented for the first time in the track record. Due to their preservation and the absence of clear anatomical details, the trackway was not assigned to any particular ichnotaxon. Taking into account the presence of rebbachisaurid diplodocoid remains in the Candeleros Formation, the classical association of narrow-gauge trackways with diplodocoids and the inferred gleno-acetabular distance, it is suggested that the studied trackway might belong to a large-sized rebbachisaurid. The worldwide record of Cenomanian dinosaur tracks includes only a few records of sauropod tracks. Thus, this new finding contributes to increase the knowledge about the early Late Cretaceous sauropods and their tracks. © 2018 Elsevier Ltd 2019 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01956671_v96_n_p70_Heredia http://hdl.handle.net/20.500.12110/paper_01956671_v96_n_p70_Heredia |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Narrow-gauge trackway Neuquén Basin Rebbachisauridae Sauropod footprints Upper Cretaceous Cenomanian dinosaur footprint fossil record ichnology osteology trackway Argentina Neuquen Basin Patagonia Dinosauria Sauropoda |
| spellingShingle |
Narrow-gauge trackway Neuquén Basin Rebbachisauridae Sauropod footprints Upper Cretaceous Cenomanian dinosaur footprint fossil record ichnology osteology trackway Argentina Neuquen Basin Patagonia Dinosauria Sauropoda A new narrow-gauge sauropod trackway from the Cenomanian Candeleros Formation, northern Patagonia, Argentina |
| topic_facet |
Narrow-gauge trackway Neuquén Basin Rebbachisauridae Sauropod footprints Upper Cretaceous Cenomanian dinosaur footprint fossil record ichnology osteology trackway Argentina Neuquen Basin Patagonia Dinosauria Sauropoda |
| description |
Dinosaurs are extremely abundant in the Upper Cretaceous Neuquén Group of the Neuquén Basin (Argentina). Nevertheless, while osteological remains are rich the ichnological record is more restricted. A new sauropod dinosaur trackway with five manus-pes imprint sets discovered in the Cenomanian Candeleros Formation is described here. The trackway belongs to the narrow-gauge type that is identified for the first time in the Cenomanian and possibly for the Late Cretaceous. It is preserved as concave epirelief in fine-grained sandstones from floodplain deposits. The tracks, which are large in size (average length of 98 cm), include conspicuous rims with very well-preserved symmetrical ripples on top that are documented for the first time in the track record. Due to their preservation and the absence of clear anatomical details, the trackway was not assigned to any particular ichnotaxon. Taking into account the presence of rebbachisaurid diplodocoid remains in the Candeleros Formation, the classical association of narrow-gauge trackways with diplodocoids and the inferred gleno-acetabular distance, it is suggested that the studied trackway might belong to a large-sized rebbachisaurid. The worldwide record of Cenomanian dinosaur tracks includes only a few records of sauropod tracks. Thus, this new finding contributes to increase the knowledge about the early Late Cretaceous sauropods and their tracks. © 2018 Elsevier Ltd |
| title |
A new narrow-gauge sauropod trackway from the Cenomanian Candeleros Formation, northern Patagonia, Argentina |
| title_short |
A new narrow-gauge sauropod trackway from the Cenomanian Candeleros Formation, northern Patagonia, Argentina |
| title_full |
A new narrow-gauge sauropod trackway from the Cenomanian Candeleros Formation, northern Patagonia, Argentina |
| title_fullStr |
A new narrow-gauge sauropod trackway from the Cenomanian Candeleros Formation, northern Patagonia, Argentina |
| title_full_unstemmed |
A new narrow-gauge sauropod trackway from the Cenomanian Candeleros Formation, northern Patagonia, Argentina |
| title_sort |
new narrow-gauge sauropod trackway from the cenomanian candeleros formation, northern patagonia, argentina |
| publishDate |
2019 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01956671_v96_n_p70_Heredia http://hdl.handle.net/20.500.12110/paper_01956671_v96_n_p70_Heredia |
| _version_ |
1768545644197183488 |