No abstract

In the mid-twentieth century, geologist Kenneth E. Caster collected fossils of South American Paleozoic and Mesozoic invertebrates, further contributing to important research for Brazilian geology. The collected paleontological collection was later taken to study at the University of Cincinnati (USA), where it remained for more than six decades. In 2016, in an unprecedented agreement between the Universidade de Cincinnati and the Museu Nacional/UFRJ, the Caster collection was repatriated, incorporating it into the collection of paleoinvertebrates of the Museu Nacional/UFRJ. The report clarifying the trajectory of the collection's repatriation and its tragic, but partial, destruction in the institution's fire in 2018 and its current destination is the objective of this paper.

No abstract

Although the fossil record from Antarctica is increasing continuously, there is still a great lack of knowledge regarding the past biodiversity of this continent. Here we present the first occurrences of the ammonoid Pseudophyllites? cf. latus in the Santa Marta Formation (Santonian-early Campanian) and the scaphopod Laevidentallium? sp. (Laevidentallidae) in the Gamma Member (late Campanian) of the Snow Hill Island Formation (late Campanian - early Maastrichtian). The presence of Laevidentalliidae in the Gamma Member characterizes the oldest occurrence of this family in Antarctica and it is apparently another taxon that originated in this continent and later migrated to lower latitudes.