BIBLIOGRAFIA |
| DE SOUZA CARVALHO I., LEONARDI G., DE MORAES RIOS-NETTO A., BORGHI L., DE PAULA FREITAS A., ANDRADE J.A., DE FREITAS F.I. |
| 2020 |
| Dinosaur trampling from the Aptian of Araripe Basin, NE Brazil, astools for paleoenvironmental interpretation. |
| CRETACEOUS RESEARCH |
| ELSEVIER 2020. |
| 117(2021)104626 |
| FIGG.8, TAB.1 |
| PALEONTOLOGIA, VERTEBRATA, DINOSAURI |
| Although fossil footprints are generally recognized by morphological data from autopodia, in some casesthey can also be characterized by a sequential deformation of the substrate, since the footprint reaches many sedimentary levels beyond the surface. In such cases, these features are preserved as deformation structures which can be observed in cross-sections, making it difficult to identify their genesis. Thus, they are many times interpreted as load or liquefaction structures related to compaction, tectonism orfluidization, without a direct relationship with the trampling by terrestrial vertebrates and the pressure generated during the contact between a tetrapod autopodium and the substrate, leading to the origin of load structures with successive laminae deformation.
The research on the Araripe Basin, Brazil, allowed the discovery of many structures that are related tosubstrate deformation after dinosaur trampling. This offers a new tool for paleoenvironmental interpretations to this region, as well as it opens new perspectives for understanding ancient terrestrialecosystems and the origin of deformational structures. Although dinoturbation observed in cross-sectionis still generally scarcely documented, it enables the understanding of environmental changes fromterrigenous to carbonate lake scenarios that are so peculiar in this sedimentary succession. Their regionaldistribution opens new possibilities to the analysis of the spatial and temporal distribution of dinosaur-trampled structures. |
| BRASILE, BACINO DELL'ARARIPE |
