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Well-preserved and diverse Early Cretaceous palynological assemblages were studied from an outcrop section of the Springhill Formation at the Río Correntoso locality (PRC), close to Ghío Lake, in Santa Cruz Province, Patagonia, Argentina. The studied log corresponds to the northernmost outcrops known for the Springhill Formation in the Austral Basin. Most of the palynomorphs algae (Botryococcus, Sphaeroplea, Lecaniella, Zygnema, Pseudoschizaea, Schizosporis, Ovoidites), and some angiosperm pollen grains (Proxapertites , Longapertites, Arecipites) are distinctive and characterize the palaeoenvironment and palaeoclimate of PRC, which was dominated by estuarine coastal margin sedimentites deposited under warm and humid conditions. These angiosperm pollen grains correspond to the earliest record of these group in Patagonia, represented by diverse monosulcates and one rare tricolpate type. This new record of angiosperm pollen in the Springhill Formation provides further evidence that one of the earliest diversifications of angiosperms started at least during the early Cretaceous in Patagonia. Sergio Archangelsky provided an invaluable expertise in the field of paleobotany in multiple ways. His knowledge transcended not only through his papers but also through his exceptional oratory skills. His talks were always enriching in every aspect, combining an engaging historical account with a vision towards the future. "...La paleobotánica un placer, debe ser algo agradable, es decir uno cuando trabaja en paleobotánica le gusta lo que hace, y cuando uno está describiendo, uno se va, y es lo mismo que componer una pieza musical, te perdés, te perdés en todo y lo hacés con gusto, con pasión..." "...The paleobotany is a pleasure, it should be something enjoyable, meaning that when you work in paleobotany, you love what you do. And when you're describing, you get lost, just like composing a musical piece. You lose yourself, in everything, and you do it with pleasure, with passion...". The file with the voice of Sergio Archangelsky is in Supplementary file under Sergio_Archangelsky.mp3. • The palynoflora of the Springhill Formation includes algae and land plants. • Pollen records show features of early members of some taxa (monocots and eudicots). • Angiosperm pollen grains provides evidence for early radiation of some basal taxa in Patagonia. • Palynoflora studied indicates freshwater palaeoenvironment, warm and humid climate. [ABSTRACT FROM AUTHOR]

Southern Patagonia contains several Eocene fossiliferous deposits that have only been superficially explored and studied. One of these corresponds to the La Marcelina Formation with outcrops in the south-western slope of the Deseado Massif, Santa Cruz Province, Argentina. No detailed palynological studies have been performed so far in this unit. Here we estimate the age, palaeoenvironment, and climatic conditions based on the analysis of terrestrially derived spores, algae cysts, and pollen grains. The recovered association supports an Eocene age and concurs with a mixed flora, including Gondwanan and Neotropical elements, dominated by Podocarpaceae, Nothofagaceae, and Proteaceae, and that probably developed under a temperate and humid climate. Overall, these results expand our understanding of the composition of Eocene floras from the highest latitudes of South America, as well as provide new evidence of past paleoclimates for the area. [ABSTRACT FROM AUTHOR]

The archaeological record of the Province of Santa Cruz's north Atlantic coast in Argentine Patagonia is represented mainly by middens. These shell middens are made up of the calcareous exoskeletons of mollusks, as well as skeletal remains of vertebrate fauna, lithic artifacts, and carbonized plant remains, intermixed with a varying quantity of sedimentary soil. Recently, along the Lower Basin of the Deseado River, outcrops have been identified that would have functioned in the past as rock shelters for hunter-gatherers who occupied the area during the Middle and Late Holocene. With the aim of expanding our knowledge concerning the dynamics of use of coastal spaces, we began a stratigraphic study of the shell middens and rock shelters. Here, we present a comparative analysis of the occupation characteristics registered at both types of sites and their possible structuring in terms of mobility and functionality. Rock shelters would have functioned primarily as contexts for short-term activities related to the processing and consumption of fauna, mainly terrestrial and to a lesser extent marine fauna. These probably structured seasonal mobility strategies that linked coastal shell middens, defined as multiple activity contexts, with hinterland areas that might have been related to the specific pursuit of other activities. [ABSTRACT FROM AUTHOR]

HMS Swift was a British sloop of war which sank in Patagonia - South Atlantic Ocean - in 1770. The wrecksite was discovered in 1982 by local divers from Puerto Deseado, Santa Cruz Province, Argentina, and this find originated the development of underwater archaeology in the country. The article presents a comprehensive review of the various research strands addressed throughout many years, and it also reflects on the legacy that the site and the project represents for topics other than archaeology, such as heritage management, museology, and cultural industries. [ABSTRACT FROM AUTHOR]