428 hasil
Menampilkan 1–20 · 0,77 detik · RSS
Publicación Electrónica de la Asociación Paleontológica Argentina
Scopus
ISSN 2469-0228 · Asociación Paleontológica Argentina · 428 artikel di indeks
-
Artikel Jurnal Teks lengkap
NEW THYREOPHORAN REMAINS WITH STEGOSAURIAN AFFINITIES FROM THE LOWER CRETACEOUS OF ARGENTINA
South American Mesozoic vertebrate fossils are key in contrasting the classic North American and European views of clades evolution. During the last decades, several relevant findings of stegosaurian remains from Argentina show a greater diversity than previously thought. These include the early…
Juga tersedia di: DOAJ
-
Artikel Jurnal
HEAD, SKULL–NECK AND EXTRINSIC EYE MUSCULATURE OF THE DICRAEOSAURID SAUROPOD BAJADASAURUS PRONUSPINAX
Cranial muscles perform important roles triggering diverse paleobiological faculties, such as feeding, communication, alert postures, etc. Within Sauropoda, a clade with high specializations in skull architectures, and several partially complete skulls recovered, detailed reconstructions of the…
-
Artikel Jurnal
LIBRO DE RESÚMENES DE LAS XXXVIII JORNADAS ARGENTINAS DE PALEONTOLOGÍA DE VERTEBRADOS
Libro de resúmenes de las XXXVIII Jornadas Argentinas de Paleontología de Vertebrados, que tuvieron lugar en la Ciudad de San Luis (San Luis, Argentina) del 21 al 23 de mayo de 2025.
-
Artikel Jurnal
A RALLIDAE (AVES, GRUIFORMES) FROM THE PLEISTOCENE LA ESPERANZA FORMATION OF OLAVARRÍA (ARGENTINA)
A tarsometatarsus recovered from the lower Pleistocene levels of the La Esperanza Formation in Olavarría, Argentina, represents the first avian remains reported from this locality. Its morphology and size allow its assignment to Aramides cajaneus (Aves, Gruiformes), a species that still occurs in…
-
Artikel Jurnal
REVISIÓN DE LOS MATERIALES TIPO DE LAS ESPECIES DE PROEUTATUS (XENARTHRA, CINGULATA) DESCRITAS POR AMEGHINO PARA LA FORMACIÓN SANTA CRUZ (PATAGONIA, ARGENTINA)
En 1887, Carlos Ameghino fue enviado a diversas localidades de la Patagonia para recolectar vertebrados fósiles a lo largo de las barrancas del río Santa Cruz. Estos materiales permitieron a su hermano Florentino fundar más de un centenar de taxones de vertebrados, entre ellos el género Proeutatus…
-
Artikel Jurnal
A SMALL SYNSACRUM OF AN ENIGMATIC BIRD FROM THE EOCENE OF MARAMBIO (SEYMOUR) ISLAND: INSIGHTS INTO THE ANTARCTIC AVIFAUNA
A small, incomplete synsacrum from Ypresian (early Eocene) levels of the Cucullaea I Allomember (La Meseta Alloformation) on Marambio (Seymour) Island, Antarctica, is examined. The synsacrum, which is dorsoventrally depressed and laterally widened, preserves two complete and one incomplete fused…
-
Artikel Jurnal
TYPE SPECIMENS OF FOSSIL FISHES AT THE MUSEO DE LA PLATA: A CATALOG
We present the first annotated and illustrated catalog of fossil fish type specimens that are housed in the División Paleontología Vertebrados of the Museo de La Plata, Argentina. The catalog comprises 31 type specimens (including 21 holotypes, five syntypes, two lectotypes, two paratypes, and one…
-
Artikel Jurnal
SUPPORT VECTOR MACHINE-BASED CLASSIFICATION OF PALEOZOIC GYMNOSPERM WOODS
Understanding the taxonomic placement of Paleozoic gymnosperm woods remains a complex task largely due to the frequent absence of attached reproductive or foliar structures. Machine-assisted analyses based on wood anatomy can support this task by suggesting plausible affinities between fossil…
-
Artikel Jurnal
LIBRO DE RESÚMENES DE LAS V JORNADAS DE PALEONTOLOGÍA DE LA CUENCA NEUQUINA
Libro de resúmenes de las V Jornadas de Paleontología de la Cuenca Neuquina, que tuvieron lugar en la Ciudad de Senillosa (Neuquén, Argentina) del 9 al 13 de septiembre de 2025.
-
Artikel Jurnal
HISTORICAL RECORD OF A SAUROPOD (DINOSAURIA: TITANOSAURIA) SPECIMEN AT THE MUSEO SEMINARIO VALPARAÍSO: THE FIRST DINOSAUR DISCOVERY OF CHILE?
Since its founding in 1870, the Colegio Seminario San Rafael of Valparaíso has offered natural science-related courses, complemented by laboratory work. Thus, in 1881, five science “cabinets” were established within the school premises, and in 1886, the building that still houses them was…
-
Artikel Jurnal
QUATERNARY LIMNOCYTHERE (LIMNOCYTHERIDAE) FROM ARGENTINA, SOUTH AMERICA: SPECIES DIVERSITY AND APPLICATION TO PALEOENVIRONMENTAL/BIOGEOGRAPHICAL RECONSTRUCTIONS
Non-marine ostracods are environmental proxies widely used in Quaternary environmental and climatic reconstructions. In South America (Neotropical Region), extant Limnocytheridae is the third most diverse family, with Limnocythere species typically inhabiting hyposaline to mesosaline waters. The…
-
Artikel Jurnal
THE FOSSIL INVERTEBRATE MARINE FAUNA OF THE GAIMAN FORMATION (LOWER MIOCENE) AT BRYN GWYN (CHUBUT, PATAGONIA, ARGENTINA)
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 Gaiman Formation, representing the “Patagonian Transgression”, has yielded…
-
Artikel Jurnal
RECORDS OF ATURIA PERUVIANA (NAUTILIDA, CEPHALOPODA) FROM THE SAN JACINTO FORMATION (UPPER EOCENE TO LOWER OLIGOCENE), OVEJAS (SUCRE, COLOMBIA)
New specimens of Aturia (Nautilida) were collected from the late Eocene to early Oligocene deposits of the San Jacinto Formation near Ovejas (Sucre, northern Colombia). These specimens, alongside historical material collected from a nearby region, are identified as Aturia peruviana. The…
-
Artikel Jurnal
OSWALDO MOOSER'S FOSSILS FROM AGUASCALIENTES, MEXICO: A SYSTEMATIC APPROACH TO LOST AND FOUND SPECIMENS
Palaeontology in the state of Aguascalientes (México) has an extensive history dating back to 1799. However, it was not until the 1950s that Oswaldo Mooser began to formally describe the palaeontological biodiversity of the state, together with other palaeontologists such as Walter W. Dalquest…
-
Artikel Jurnal
NEW TRAVERSODONTID CYNODONT FROM THE LATE TRIASSIC CHAÑARES FORMATION
The Chañares Formation in north-western Argentina has provided an impressive number of specimens of early archosauriforms, dicynodonts, and non-mammaliamorph cynodonts. However, there is a very low diversity of cynognathian cynodonts. Herein, we report on Pontognathus ignotus gen. et sp. nov., a…
-
Artikel Jurnal
KEROGEN CHARACTERIZATION OF THE VACA MUERTA FORMATION (TITHONIAN–VALANGINIAN), AT MALLÍN QUEMADO AND PUERTA CURACO, NEUQUÉN BASIN, CENTRAL-WEST PATAGONIA, ARGENTINA. PALYNOFACIES AND GEOCHEMICAL APPROACH
This contribution integrates palynofacies, organic geochemical and sedimentological analyses to characterize the depositional environment and the kerogen properties related to the hydrocarbon source potential of the Vaca Muerta Formation at the Mallín Quemado Norte (MQN) and Puerta Curaco (PC)…
-
Artikel Jurnal
A NEW SPECIES OF CELLARIA (BRYOZOA, CHEILOSTOMATIDA) FROM THE LATE DANIAN (PALEOCENE) OF PATAGONIA (ARGENTINA)
The cheilostome bryozoan genus Cellaria is characterized by articulated, dichotomously branching colonies, which are composed of cylindrical internodes joined by cuticular nodes. The genus includes over 130 species, with approximately 70 taxa ranging from the late Paleocene to the Holocene. This…
-
Artikel Jurnal
TAPHONOMY OF DEATH ASSEMBLAGES OF THE FRESHWATER BIVALVE CORBICULA FLUMINEA (MÜLLER, 1774) (VENEROIDEA) AFTER THREE AND FOUR DECADES IN THE UPPER RÍO DE LAPLATA, URUGUAY
The invasive bivalve Corbicula fluminea has been known in the Río de la Plata for approximately 40 years. This decadal time lapse fill a gap in taphonomic studies. Our study is the second to investigate taphonomic modifications on valves of this species in Uruguay, expanding the temporal resolution…
-
Artikel Jurnal
WHO EATS THE ARMADILLOS? NEOTAPHONOMY OF ACCUMULATIONS PRODUCED BY THE CROWNED EAGLE (BUTEOGALLUS CORONATUS)
Neotaphonomic studies of vertebrates provide information about the mechanisms and processes that can modify the original characteristics of skeletal elements and can be used as analogues for interpretations on the origin of archeological and paleontological assemblages. The neotaphonomic evaluation…