| Popis: |
Here we describe fossil vertebrate remains from a new Solimoes Formation (Eocene-Pliocene) locality, near the highway BR 364 at Sena Madureira municipality (Acre, Brazil). The findings comprise more than forty-four isolated fragments from which twenty-three specimens could be properly identified anatomically and systematically. The materials include at least three different Caimaninae genera (Caiman, Melanosuchus, and Mourasuchus), two distinct side-necked turtles (Chelus and Podocnemididae) and one mammal (Toxodontidae). The studied fossils could be systematized into two taphonomic classes based on their preservational status, indicating a sinuous fluvial meandering paleoenvironment. This new locality seems to be relevant regarding not only its fossil vertebrate diversity but also because of its geographic position: on a highway side, which allows access at any season of the year, as contrary to most common riverine outcrops from Solimoes Formation, which are restricted to collections during the dry seasons. |
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