Alteration zonation in the Loma Blanca kaolin deposit, Los Menucos, Province of Rio Negro, Argentina

The oldest and first nearly complete skeleton of a chelid, of the Hydromedusa sub-group (Chelidae, Pleurodira), from the Upper Cretaceous of Patagonia

TWO NEW SPECIES OF ADELOMELON (GASTROPODA: VOLUTIDAE) FROM THE TERTIARY OF PATAGONIA (ARGENTINA)

A NEW SPECIES OF ABERTELLA (ECHINOIDEA: SCUTELLINA) FROM THE GRAN BAJO DEL GUALICHO FORMATION (LATE EARLY MIOCENE–EARLY MIDDLE MIOCENE), RÍO NEGRO PROVINCE, ARGENTINA

WATER VAPOR CONDUCTANCE OF THE LOWER CRETACEOUS DINOSAURIAN EGGS FROM SANAGASTA, LA RIOJA, ARGENTINA: PALEOBIOLOGICAL AND PALEOECOLOGICAL IMPLICATIONS FOR SOUTH AMERICAN FAVEOLOOLITHID AND MEGALOOLITHID EGGS

Shifting niches of marine predators due to human exploitation: the diet of the South American sea lion ( Otaria flavescens ) since the late Holocene as a case study

Stages of Late Palaeozoic deformation and intrusive activity in the western part of the North Patagonian Massif (southern Argentina) and their geotectonic implications

BIOGENIC STRUCTURES OF UNIONIFORM BIVALVES IN WET-INTERDUNE DEPOSITS (LATE MIOCENE–EARLY PLIOCENE, ARGENTINA)

The Nodoconchiinae, a new subfamily of Cytheridae (Crustacea, Ostracoda)

CRYPTIC DIAGENETIC CHANGES IN QUATERNARY ARAGONITIC SHELLS: A TEXTURAL, CRYSTALLOGRAPHIC, AND TRACE-ELEMENT STUDY ON AMIANTIS PURPURATA (BIVALVIA) FROM PATAGONIA, ARGENTINA

A New Species of Fossil Homolid Crab (Decapoda: Brachyura) from the Río Foyel Formation (Paleogene), Río Negro Province, Argentina

UPPER CRETACEOUS–PALEOCENE ECHINOIDS FROM NORTHERN PATAGONIA, ARGENTINA

The family Carditidae (Bivalvia) in the early Danian of Patagonia (Argentina)

THE FAMILY VOLUTIDAE (MOLLUSCA–GASTROPODA) IN THE TERTIARY OF PATAGONIA (ARGENTINA)

Neogene Pectinidae (Bivalvia) of tribe Chlamydini Teppner, 1922 in Patagonia (Argentina): Zygochlamys Ihering, 1907 and three new genera

BIOGEOGRAPHIC SHELL SHAPE VARIATION IN TROPHON GEVERSIANUS (GASTROPODA: MURICIDAE) ALONG THE SOUTHWESTERN ATLANTIC COAST

REGIONAL-SCALE COMPOSITIONAL AND SIZE FIDELITY OF ROCKY INTERTIDAL COMMUNITIES FROM THE PATAGONIAN ATLANTIC COAST

A New Early Danian Gastropod Assemblage from Northern Patagonia, Río Negro Province, Argentina

Middle Jurassic rhyolite volcanism of eastern Graham Land, Antarctic Peninsula: age correlations and stratigraphic relationships

Odonatan Endophytic Oviposition from the Eocene of Patagonia: The Ichnogenus Paleoovoidus and Implications for Behavioral Stasis