Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
127
datasets available to search
ShareScore release 0.7.1
Dataset results
127 results for “Central Argentina”
Fig. 3. Early Jurassic gastropods from Lomas Occidentales fossil locality. A–D in New Early Jurassic gastropods from west-central Patagonia, Argentina
Fig. 3. Early Jurassic gastropods from Lomas Occidentales fossil locality. A–D. Pseudomelania feruglioi sp. nov. A. MPEF−PI 4090, paratype, adult teleoconch in lateral views (A1, A2). B. MPEF−PI 4091, paratype, adult teleoconch in lateral view. C. MPEF−PI 4096, juvenile teleoconch in lateral view. D. MPEF−PI 4089, paratype, adult teleoconch in apertural views (D1, D2). E. Pseudomelania sp. adult teleoconch in lateral views (E1, E2), basal views showing ornament details (E3, E4). F, G. Anulifera chubutensis sp. nov. F. SEGEMAR 25000 (MPEF−PI 4107), holotype, teleoconch in lateral (F1) and apertural (F2) views. G. SEGEMAR 25001 (MPEF−PI 4108), fragmentary teleoconch in lateral views (G1, G2). H. Globularia aff. catanlilensis (Weaver, 1931). MPEF−PI 4110, teleoconch in lateral (H1) and apertural (H2) views. Scale bars: A–E 3 mm, F–H, 10 mm.
Fig. 4 in New Early Jurassic gastropods from west-central Patagonia, Argentina
Fig. 4. Early Jurassic gastropods from Lomas Occidentales and Cerro La Trampa fossiliferous localities. A–C. Globularia cf. catanlilensis (Weaver, 1931). A. MPEF−PI 4112; teleoconch in lateral (A1, A2) and apertural (A3) views. B. MPEF−PI 4114; teleoconch in lateral (B1, B2) and latero−apical (B3) views. C. MPEF−PI 4116, teleoconch in lateral views (C1, C2). D. Globularia sp. MPEF−PI 4119; teleoconch in lateral (D1) and apertural (D2) views. E. Naricopsina? sp.; MPEF−PI 3560, teleoconch in latero−apical views (E1, E2). F. Nerinea? sp. 1. MPEF−PI 4123, fragmentary teleoconch in lateral views (F1, F2). G–I. Nerinea? sp. 2. G. MPEF−PI 4124, fragmentary teleoconch in lateral view. H. MPEF−PI 4125, fragmentary teleoconch in lateral view. I. MPEF−PI 4126, fragment of last teleoconch whorl in lateral view. Scale bars: A–D 10 mm, E–I 3 mm.
Fig. 2 in New Early Jurassic gastropods from west-central Patagonia, Argentina
Fig. 2. Early Jurassic gastropods from Lomas Occidentales and Cerro La Trampa fossiliferous localities. A. Lithotrochus humboldtii (von Buch, 1839), MPEF−PI 4127; teleoconch in lateral (A1, A2), latero−apical (A3), and apertural (A4) views. B. Lithotrochus cf. rothi Damborenea and Ferrari, 2008, MPEF−PI 3581; teleoconch in lateral (B1) and apertural (B2) views; apertural detail (B3); teleoconch in basal and apertural view (B4). C, D. Trochidae gen. et sp. indet. 1. C. MPEF−PI 4120, teleoconch in lateral views (C1, C2). D. MPEF−PI 4121, teleoconch in lateral view. E. Trochidae? gen. et sp. indet. 2., MPEF−PI 4122, teleoconch in lateral view. F–I. Pseudomelania feruglioi sp. nov. F. MPEF−PI 4155, holotype, juvenile teleoconch in apertural (F1) and oblique apertural (F2) views. G. MPEF−PI 4087, paratype, juvenile teleoconch in lateral view. H. MPEF−PI 4101, adult teleoconch in lateral view. I. MPEF−PI 4098, juvenile teleoconch in lateral view. Scale bars: A–E 10 mm, F–I 3 mm.
Fig. 4 in Cosmopolitan Early Jurassic marine gastropods from west-central Patagonia, Argentina
Fig. 4. Southern hemisphere map showing the paleobiogeographical distribution of the cosmopolitan Jurassic gastropod genere reported herein. Note that the occurrence of the new Lower Toarcian gastropod association in "El Córdoba" fossiliferous locality (*) (Chubut province, Argentina) extends the paleobiogeographical distribution of the group in South America.
Fig. 3. Early Jurassic gastropods from Argentina A in Cosmopolitan Early Jurassic marine gastropods from west-central Patagonia, Argentina
Fig. 3. Early Jurassic gastropods from Argentina A. Zygopleuridae? gen. et sp. indet., "El Córdoba" fossiliferous locality, Chubut Province. MPEF−PI 1886, latex cast of external mold in lateral view. B–D. Cryptaulax damborenae sp. nov., "El Córdoba" fossiliferous locality, Chubut Province. B. MPEF−PI 1878b, holotype, latex cast of external mold in lateral (B1, B2) and basal (B3) views, ornament detail (B4). C. MPEF−PI 1877, paratype, latex cast of external mold of incomplete teleoconch in apertural view. D. MPEF−PI 1872b, paratype, latex cast of external mold of incomplete teleoconch in lateral view. E. Cryptaulax cf. damboreneae sp. nov., Cerro Puchenque locality, Mendoza Province. MLP 18742, latex cast of external mold of incomplete teleoconch; adult teleoconch in lateral view. F–H. Cryptaulax nulloi sp. nov., "El Córdoba" fossiliferous locality, Chubut Province. F. MPEF−PI 1870, holotype, latex cast of external mold. Adult teleoconch in lateral view (F1), juvenile teleoconch in lateral view (F2). G. MPEF−PI 1861, paratype, latex cast of external mold in lateral and apertural view. H. MPEF−PI 1871, latex cast of external mold of incomplete teleoconch in lateral view (H1), and its ornament detail (H2). Scale bars 1 mm.
Fig. 2 in Cosmopolitan Early Jurassic marine gastropods from west-central Patagonia, Argentina
Fig. 2. Early Jurassic gastropods from the "El Córdoba" fossiliferous locality, Chubut Province, Argentina. A. Amberleya? espinosa sp. nov. MPEF−PI 1882, holotype, latex cast of external mold in lateral view (A1, A2), juvenile teleoconch in lateral view (A3), last whorl in lateral view (A4), basal and apertural view (A5), ornament pattern and sutural detail (A6). B. Colpomphalus? sp. MPEF−PI 1863, latex cast of external mold of incomplete teleoconch in apical and lateral view (B1–B3), last whorl ornament detail showing the spiral furrow (B4). C. Striatoconulus sp. MPEF−PI 1867b, latex cast of external mold in apical view (C1), apical detail (C2), first teleconch whorls lateral view (C3). Scale bars 2 mm unless otherwise indicated.
Fig. 1. A in Cosmopolitan Early Jurassic marine gastropods from west-central Patagonia, Argentina
Fig. 1. A. Map of the western part of the South American continent showing the localities of new gastropod faunas in Argentina. 1, Cerro Puchenque, Mendoza; 2, Osta Arena Formation area in west−central Patagonia. B. Location map of "El Córdoba" fossiliferous locality (*).
Data from: Evenness and diversity in Upper Cambrian – Lower Ordovician trilobite communities from the Central Andean Basin (Cordillera Oriental, Argentina)
Community evenness has recently received much attention, either because it is related to ecosystem functioning or because it may affect estimation of diversity. Temporal and environmental trends in diversity and evenness of trilobite communities during the Late Cambrian – Early Ordovician of the Cordillera Oriental (north-western Argentina) are here analysed. Richness and evenness increase through time in both deep subtidal (between fair-weather and storm wave base) and offshore (below storm wave base) communities. Two significant patterns are superimposed on this general trend: (1) the magnitude of the increase in evenness is much more pronounced in deep than in shallower settings, and (2) richness and evenness trajectories are decoupled (while a significant rise in evenness is recorded in the middle Tremadocian (Tr2), an increase in richness is delayed until the late Tremadocian (Tr3)). In contrast to expectations, a single family (Olenidae) is dominant in samples associated with this earlier rise in evenness relative to richness. Hence, this trend is explained neither by the number of families present in the communities nor by the familial identity of the most abundant taxon. Large-scale comparisons of the timing and geographical components of these trends are restricted to the patterns recognized in Laurentian North American studies. Results from the Cordillera Oriental mirror those of Laurentia regarding the rise in both metrics in deep marine settings. Nevertheless, the timing of this increase in richness and evenness is delayed in the Cordillera Oriental, supporting the idea that palaeogeographical regions differed in the nature and timing of ecological changes. Finally, the rise in trilobite alpha-diversity through the Late Cambrian – Early Ordovician of the Cordillera Oriental supports the idea that trilobite alpha-diversity did not decline worldwide, suggesting that the relative decline in trilobite alpha-diversity is most probably caused by the dilution effect.
Data from: A new echimyid genus (Rodentia, Caviomorpha) in Central Argentina: uncovered diversity of a Brazilian group of mammals in the Pleistocene
We describe a new extinct spiny rat, Proclinodontomys dondasi n. gen. n. sp. (Rodentia, Caviomorpha, Echimyidae), represented by a noteworthy-preserved skull and mandible from the early-middle Pleistocene outcrops at the coastal cliffs of southeastern Buenos Aires Province (Central Argentina). Phylogenetic analyses allow us to propose that the new species described here and the already known Eurzygomatomys mordax (Winge), represent a new genus closely related to the living Euryzygomatomys spinosus and Clyomys laticeps. The new genus differs from Euryzygomatomys and Clyomys by having much more procumbent upper incisors, a more developed fossa for the M. temporalis, more flared and laterally expanded zygomatic arches, frontal less markedly expanded posteriorly, jugals much deeper anteriorly than posteriorly, with the dorsal border descending more abruptly posteriorly, smaller orbital cavity, and external auditory meatus relatively smaller and slanted upward and backward. Several features of the new species reflect a higher degree of adaptation to semifossorial habits than those of E. spinosus. The origin of the semifossorial ecomorphotype within echimyids may have been triggered by the expansion of relatively open and arid environments that arose near the Miocene-Pliocene boundary. The record of this new echimyid in Central Argentina indicates that during the early Pleistocene, the southern limit of the geographic range of extinct representatives of the Brazilian lineage of semifossorial echimyids extended further south than that of their living members.
Data from: The gastropod family Aporrhaidae in the Lower Cretaceous of the Neuquén Basin, west-central Argentina
The gastropod fauna of the Lower Cretaceous of the Argentinian Neuquén Basin contains three aporrhaid species. Protohemichenopus neuquensis Camacho, 1953 is the most abundant, longest-lived, and most geographically widespread of the aporrhaids of this basin, and its protoconch and early teleoconch whorls were unknown until now. The new species Dimorphosoma weaveri features convex to subtly angular spire whorls with opisthocyrt collabral ribs that are more prominent towards the mid-whorl, a bicarinate last whorl with small rounded nodes on the adapical carina, a simple, falcate labral wing which is more or less rectangular proximally and tapering and curving towards its distal end, and a short, straight rostrum. Tylostoma jaworskii Weaver, 1931 is now placed in Harpagodes, and other previous, scattered, coeval records of this genus in the basin are now recognized as part of this single species. It is believed that whereas H. jaworskii preferred shallower-water carbonate settings of low to moderate energy, P. neuquensis and D. weaveri favored siliciclastic to mixed clastic-carbonate environments, in deeper waters. In spite of its endemic elements, this aporrhaid association depicts a predominantly Tethyan influence.
FIGURE 1. a in A new species of Liolaemus from central steppes of Chubut, Patagonia Argentina (Reptilia: Iguania: Iguanidae)
FIGURE 1. a. Adult male holotype of Liolaemus uptoni in life from Bajada del Buey, Gastre, Chubut, dorsal view. Photo: J.A. Scolaro, 07032000. b. Adult male holotype of Liolaemus somuncurae from a landscape between Laguna Raimundo and Laguna Miñuelo, 1400 m asl., Somuncurá Plateau, Río Negro. Photo: J.M. Cei, 21021980.
FIGURES 14–15. Tergites VI in The genus Orobothriurus Maury in central Argentina with description of a new species from El Nevado mountain chain in Mendoza Province (Scorpiones: Bothriuridae)
FIGURES 14–15. Tergites VI and VII, dorsal aspect showing the pigmentation pattern. 14. Orobothriurus alticola; 15. Orobothriurus grismadoi n. sp. Scale bars: 1mm.
FIGURES 20–34 in The genus Orobothriurus Maury in central Argentina with description of a new species from El Nevado mountain chain in Mendoza Province (Scorpiones: Bothriuridae)
FIGURES 20–34. Left hemispermatophores, distal lamina, external aspect. 20–24. Orobothriurus grismadoi n. sp.. 25– 34. Orobothriurus alticola. 25. Puente del Inca, Mendoza province, Argentina; 26–28. Paso del Agua Negra, San Juan province, Argentina; 29. Laguna Diamante, Mendoza province, Argentina; 30–34. El Tontal, San Juan province, Argentina. Scale bars: 1mm.
FIGURE 35 in The genus Orobothriurus Maury in central Argentina with description of a new species from El Nevado mountain chain in Mendoza Province (Scorpiones: Bothriuridae)
FIGURE 35. Map of central Argentina showing the known distribution of the Orobothriurus species of the area.
FIGURES 16–19. Left hemispermatophore. 16, 17. Orobothriurus grismadoi n in The genus Orobothriurus Maury in central Argentina with description of a new species from El Nevado mountain chain in Mendoza Province (Scorpiones: Bothriuridae)
FIGURES 16–19. Left hemispermatophore. 16, 17. Orobothriurus grismadoi n. sp. 16. Internal aspect; 17. External aspect. 18. Orobothriurus alticola, (El Tontal, San Juan province, Argentina), external aspect, showing the distal lamina measures analyzed: A= apex length, B= distal lamina length. 19. Orobothriurus alticola, (Puente Del Inca, Mendoza province, Argentina), external aspect, showing the angle (C) between apex and distal lamina base. Scale bars: 1mm.
FIGURES 1–5. 1, 3–5. Orobothriurus grismadoi n in The genus Orobothriurus Maury in central Argentina with description of a new species from El Nevado mountain chain in Mendoza Province (Scorpiones: Bothriuridae)
FIGURES 1–5. 1, 3–5. Orobothriurus grismadoi n. sp.. 1. Telson, male, lateral aspect; 3. Telson, female, lateral aspect; 4. Sternite VII and metasomal segment I, female, ventral aspect; 5. Metasomal segment V, male, ventral aspect. 2. Orobothriurus alticola. Telson, male, lateral aspect. Scale bars: 1mm.
FIGURES 6–13. Orobothriurus grismadoi n in The genus Orobothriurus Maury in central Argentina with description of a new species from El Nevado mountain chain in Mendoza Province (Scorpiones: Bothriuridae)
FIGURES 6–13. Orobothriurus grismadoi n. sp.. 6. Left pedipalp chela, male, retrolateral aspect; 7. Left pedipalp chela, female, prolateral aspect; 8. Right pedipalp chela, male, ventral aspect; 9. Left pedipalp chela, female, dorsal aspect; 10. Left pedipalp chela, male, prolateral aspect; 11. Left pedipalp patela, male, retrolateral aspect; 12. Left pedipalp patela, male, ventral aspect; 13. Left pedipalp femur, male, dorsal aspect. Scale bars: 1mm.
FIGURES 11–14. Ischilinema baldoi gen. n in First record of Viannaiidae (Nematoda: Trichostrongylina) in fossorial rodents (Ctenomys spp.) from Central Argentina, with description of a new genus and species
FIGURES 11–14. Ischilinema baldoi gen. n. sp. n. 11–12, male, caudal bursa, 11, bursa spread out, ventral view, 12, bursa folded, left lateral view, right branch of dorsal ray omitted. 13, male, spicules in situ, showing spicular alae. 14, female, posterior extremity, left lateral view. Abbreviations: 2r-8r, right rays 2 to 8; 2l-8l: left rays 2 to 8.
FIGURES 1–10. Ischilinema baldoi gen. n in First record of Viannaiidae (Nematoda: Trichostrongylina) in fossorial rodents (Ctenomys spp.) from Central Argentina, with description of a new genus and species
FIGURES 1–10. Ischilinema baldoi gen. n. sp. n. 1, female, anterior extremity, right lateral view. 2, female, head, apical view. 3–11, synlophe in transverse sections of the body: 3, 4, at oesophago-intestinal junction, 3, male, 4, female; 5–6, at mid-body, 5, male, 6, female; 7–10, within distal third of body length, 7, male at 500 µ before caudal bursa, 8, female at 500 µ from posterior extremity, 9, male at beginning of spicules, 10, male, at 100 µ before caudal bursa. Abbreviations: R, right, V, ventral. All sections oriented as in Figure 3.
FIGURE 11. Oecetis pseudoamazonica, new species. A in The genus Oecetis McLachlan in Bolivia and northwestern Argentina (Trichoptera: Leptoceridae), with new species and identification key for males of Oecetis species from Mexico, Central and South America
FIGURE 11. Oecetis pseudoamazonica, new species. A— forewing and hind wing. Male genitalia: B—lateral; C—dorsal; D—ventral; E—Phallic apparatus, lateral; F—Phallic apparatus ventral.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.