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Holoplanktonic gastropods (pteropods and heteropods) are major components of modern Indo–West Pacific (IWP) plankton, yet their fossil record in this region remains sparse. Expanding the spatial and temporal coverage o...

Tayassu pecari is widely distributed across the Neotropical region, from northern Argentina to south-eastern Mexico. However, its fossil record is scarce; it is recorded since the middle Pleistocene to Holocene in Argent...

The present study includes a review of the geographic and stratigraphic distribution of short-faced bears (Ursidae, Tremarctinae) in South America. In addition, the authors discuss biogeographic hypotheses regarding the ...

The first record of a Tremarctinae bear in Venezuela was made by Royo y GÓMEZin 1960. Since then, three new specimens from two localities have been collected but not reported. The purpose of this contribution is to disc...

PREMISE OF THE STUDY: Plants preserved in different fossil modes provide complementary data concerning the paleobiology and evolutionary relationships among plant groups. New material from the Early Jurassic of Patagonia...

With the discoveries of new hominin fossils from historically well-studied as well as poorly sampled regions, and thanks to great advances in paleogenetic studies, Asian paleoanthropology has now entered a new phase of r...

Evidence suggests that the Neanderthal and Homo sapiens lineages began diverging about 600,000 years ago, evolving largely separately in Eurasia and Africa after that time. Around 60,000 years ago H. sapiens began a sign...

With c. 24 700 species (10% of all flowering plants), Asteraceae are one of the largest and most phenotypically diverse angiosperm families, with considerable economic and ecological importance. Asteraceae are distribute...

Caviidae is a diverse group of caviomorph rodents that is broadly distributed in South America and is divided into three highly divergent extant lineages: Caviinae (cavies), Dolichotinae (maras), and Hydrochoerinae (capy...

We identified six fossil-species of angiosperms based on fossil woods from two small collections from the Beta Member (lower Campanian) of the Santa Marta Formation on James Ross Island: 1) Paraphyllanthoxylon antarcticu...

El presente estudio trata sobre la bioestratigrafía de conodontes del tramo medio-superior de la Formación San Juan (Ordovícico Inferior-Medio), en la sección expuesta en la quebrada Los Gatos, ubicada en la vertient...

The Upper Miocene-Lower Pliocene Río Negro Formation (Río Negro Province, Argentina) contains diverse and abundant continental trace fossils. The purpose of this contribution is to recognize distinctive trace fossil as...

Fossil insect nests with constructed walls (ichnogenera Uruguay ROSELLI 1938, Palmiraichnus ROSELLI 1987, Rosellichnus GENISE and BOWN 1996), as well as fossil brood masses from dung beetles (Monesichnus ROSELLI 1987) of...

This contribution describes new vertebrate remains found in Triassic strata informally known as “Estratos ElBordo”, in the Atacama Desert, northern Chile. These include the first temnospondyl record in the El Bordo B...

Abstract The Eocene–Oligocene transition was the crucial turning point when Earth’s climate shifted to its current icehouse state. Understanding how the marine biosphere responded during this transition is not well-c...

The fossil record of New World vultures (Cathartidae) and hawks (Accipitridae) in South America is extensive but still remains patchy, with relatively few records coming from northern South America. The aim of the presen...

We describe nine angiosperm fossil woods from sediments of the Cardiel Formation (Upper Cretaceous) near the Cardiel Lake, Santa Cruz Province, Argentinian Patagonia. On the basis of the characteristics of the anatomy, t...

The scientific utility of Eugène Dubois’ Pithecanthropus erectus (P.e.) specimens and other paleontological finds from Trinil has been impaired for over a century by questions about provenience. Firsthand accounts and...

Since initial excavations in 1948, the site of Swartkrans, located in the ‘Cradle of Humankind,’ South Africa has yielded hundreds of fossil hominin specimens belonging to species of Paranthropus, Homo, and possibly ...

The Bryn Gwyn (Chubut Province, Patagonia, Argentina) is a classic fossiliferous site, long recognised for its Cenozoic vertebrate record. However, its invertebrate content remains poorly documented. The Lower Miocene Ga...

The Paraná Basin was filled by a sedimentary package deposited in successive sedimentation episodes related to the tectonic events that hit the SW portion of the Gondwana. The Triassic portion of this package, known wor...

Several locations are known along the coast of the Ezequiel Ramos Mexía Dam, Neuquén province in Northwestern Argentinian Patagonia, comprising one of the richest dinosaur-tracking areas in South America. In this contr...

Today, only three odontocete (toothed whales) genera are restricted to freshwater habitats: the Amazon River dolphin (Inia geoffrensis), the possibly extinct Yangtze River dolphin (Lipotes vexillifer) (Turvey et al., 200...

The South American Ctenomys is the most speciose genus among both hystricomorphs and subterranean rodents of the world. Here, we present the most exhaustive phylogenies and timetree of living and extinct Ctenomys attempt...