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.
191
datasets available to search
ShareScore release 0.7.1
Dataset results
191 results for “early Oligocene”
An updated generic classification of Cenozoic pleurotomariid gastropods, with new records from the Oligocene and Early Miocene of India
<p>Although taxonomically distinct, the Cenozoic pleurotomariids are the bottlenecked remnants of the Mesozoic members of the family in terms of morphology, with only conical forms surviving the end-Cretaceous mass extinction. Here, we propose an updated classification scheme for the Cenozoic representatives of this group, based on data from the entire Cenozoic pleurotomariid fossil record. We consider all conventional as well as several new characters so that this scheme can readily help to distinguish Cenozoic pleurotomariid genera. Following the new classification scheme, a revision of the generic status of Cenozoic species previously assigned to '<i>Pleurotomaria</i>' Defrance, 1826 is presented. Only a few Cenozoic pleurotomariid gastropods have been reported from the Indian subcontinent. Here we report four species from the Oligocene of the Kutch Basin and the Early Miocene (Burdigalian) of the Dwarka Basin of Gujarat, western India, of which two are described as new: <i>Perotrochus bermotiensis</i> n. sp. in the genus <i>Perotrochus</i> Fischer, 1885, and <i>Entemnotrochus kathiawarensis</i> n. sp., <em>Entemnotrochus </em>cf. <i>bianconii</i>, and <i>Entemnotrochus</i>? sp. 1 in the genus <i>Entemnotrochus</i> Fischer, 1885.</p>
FIG. 3 in First record of the new Neoplanorbulinid species (Foraminifera) from the Early Oligocene in Turkey, Malatya Basin, Eastern Taurids
FIG. 3. — Generalized stratigraphy of Cenozoic deposits in the Malatya Basin (modified from Karaman et al. 1993).
FIGURE 2 in New Paleogene Notohippids and Leontiniids (Toxodontia; Notoungulata; Mammalia) from the Early Oligocene Tinguiririca Fauna of the Andean Main Range, Central Chile
FIGURE 2. Left and right mandibles of holotype of Eomorphippus neilopdykei, SGOPV 2855, preserving Ri1–3, p2–m3 (m3 inadvertently trimmed during preparation), Li1-3, p2–m1, in A, occlusal and B, ventral views. Note hypsodonty of incisors.
FIGURE 1 in New Paleogene Notohippids and Leontiniids (Toxodontia; Notoungulata; Mammalia) from the Early Oligocene Tinguiririca Fauna of the Andean Main Range, Central Chile
FIGURE 1. Photographs of cast, and line drawings of holotype of Eomorphippus bondi, SGOPV 3046, a partial skull bearing left I1–3, C, P3–M3 and right I1–3, P3, M1–3, in A, left lateral, B, C, occlusal, and D, anterior views (opposite page). Horizontal ridge in anterior view is a seam from the two-piece mold. Note hypsodonty of the incisors and narrowness of molars. Paratype of Eomorphippus bondi, SGOPV 2891, showing partial left lower dentition including i1–3 and p2–m3, in E, occlusal and F, labial views (above; photograph of cast).
FIGURE 5 in New Paleogene Notohippids and Leontiniids (Toxodontia; Notoungulata; Mammalia) from the Early Oligocene Tinguiririca Fauna of the Andean Main Range, Central Chile
FIGURE 5. Holotype of Termashippus flacoensis SGOPV 2987 (cast), right maxillary fragment bearing P2–M3 in A, labial, B, occlusal, and C, lingual views. The specimen was inadvertently sliced by a rock saw prior to preparation; the ~2 mm wide gap in the specimen is indicated by dimples (A) and thin line (B, C).
FIGURE 8 in New Paleogene Notohippids and Leontiniids (Toxodontia; Notoungulata; Mammalia) from the Early Oligocene Tinguiririca Fauna of the Andean Main Range, Central Chile
FIGURE 8. Partial left mandibular fragment of Termashippus flacoi SGOPV 2996 (cast), bearing probable m1–2 in A, occlusal and B, lingual views.
FIGURE 3. SGOPV 2991 in New Paleogene Notohippids and Leontiniids (Toxodontia; Notoungulata; Mammalia) from the Early Oligocene Tinguiririca Fauna of the Andean Main Range, Central Chile
FIGURE 3. SGOPV 2991, fragmentary right maxilla of Rosendo pascuali preserving P2 through the anterior half of M1 and slivers of an erupting M3 in A, labial and D, occlusal views. SGOPV 3096, isolated left m3 (photographically reversed) in B, labial and F, occlusal views. AMNH 29474, holotype of Rosendo pascuali, right mandible with i3–m3 in C, labial and E, occlusal views (from Simpson, 1967). SGOPV 3051, fragmentary left mandible of Rosendo pascuali preserving p3–m1 plus erupting m2 in G, labial, H, lingual, and I, occlusal views (opposite page).
FIGURE 7 in New Paleogene Notohippids and Leontiniids (Toxodontia; Notoungulata; Mammalia) from the Early Oligocene Tinguiririca Fauna of the Andean Main Range, Central Chile
FIGURE 7. Three little to unworn right upper cheekteeth tentatively referred to Termashippus flacoensis SGOPV 3008 (cast), probably dP2–4, in A, labial, B, occlusal, and C, lingual views.
Figure 4 in A new dwarf boa (Serpentes, Booidea, 'Tropidophiidae') from the Early Oligocene of Belgium: a case of the isolation of Western European snake faunas
Figure 4. Trunk/caudal transition in Falseryx petersbuchi, in left lateral view: A, posterior trunk vertebra (BSP, 1976 XXII 6127); B, fusion of last trunk, 1st cloacal and 2nd cloacal vertebrae (BSP, uncatalogued); C, anterior caudal vertebra (SMNS, 57898-3). Abbreviations: h, hypapophysis; hk, haemal keel; ls, lymphapophyses; pd, paradiapophysis; pl, pleurapophysis. A and C from Szyndlar & Rage (2003: fig. 27C, P).
Figure 1 in A new dwarf boa (Serpentes, Booidea, 'Tropidophiidae') from the Early Oligocene of Belgium: a case of the isolation of Western European snake faunas
Figure 1. Holotype middle trunk vertebra of Falseryx neervelpensis sp. nov. (IRSNB R 240), in right lateral (A), left lateral (B), dorsal (C), ventral (D), anterior (E) and posterior (F) views. Abbreviations: cd, condyle; ct, cotyle; d, diapophysis; hk, haemal keel; lf, lateral foramen; na, neural arch; nc, neural canal; ns, neural spine; p, parapophysis; pd, paradiapophysis (diapophysis + parapophysis); po, postzygapophysis; poa, postzygapophyseal articular surface; pr, prezygapophysis; pra, prezygapophyseal articular surface; prp, prezygapophyseal process; sf, subcentral foramen; sg, subcentral groove; sr, subcentral ridge; z, zygosphene; zy, zygantrum.
Figure 2 in A new dwarf boa (Serpentes, Booidea, 'Tropidophiidae') from the Early Oligocene of Belgium: a case of the isolation of Western European snake faunas
Figure 2. Trunk vertebrae of Falseryx neervelpensis sp. nov. A–C, anterior trunk vertebra (IRSNB R 239), in right lateral (A), anterior (B) and dorsal (C) views; D–F, middle trunk vertebra (IRSNB R 241), in left lateral (D), dorsal (E) and ventral (F) views; G–K, posterior trunk vertebra (IRSNB R 237), in right lateral (G), dorsal (H), ventral (I), anterior (J) and posterior (K) views; L–P, one of the final trunk vertebrae (IRSNB R 238), in left lateral (L), dorsal (M), ventral (N), anterior (O) and posterior (P) views. Abbreviation: h, hypapophysis.
FIG. 8 in New data about the diversity of Early Oligocene eomyids (Mammalia, Rodentia) in Western Europe
FIG. 8. — Lingual view of m1/2 molar from two levels of Saint- Martin-de-Castillon: A, Eomys aff. E. antiquus (Aymard, 1853) from the level C (FSL 98156); B, Eomys aff. E. zitteli Schlosser, 1884 from the level J (FSL 98181). Scale bar: 0.5 mm.
FIG. 7 in New data about the diversity of Early Oligocene eomyids (Mammalia, Rodentia) in Western Europe
FIG. 7. — Measurements of Eomys Schlosser, 1884 teeth compared the neotype of E. zitteli Schlosser, 1884 are indicated by stars.
FIG. 6 in New data about the diversity of Early Oligocene eomyids (Mammalia, Rodentia) in Western Europe
FIG. 6. — Eomys minor Comte & Vianey-Liaud, 1987 teeth, La Blache: A, A', Lm1/2, FSL 98182; A, occlusal view; A', labial view; B, RM1/2, FSL 98183; C, LM3, FSL 98184; D, Rm1/2, FSL 98185; E, Rp4, FSL 98186. Scale bar: 0.5 mm.
FIG. 9. — A-D in New data about the diversity of Early Oligocene eomyids (Mammalia, Rodentia) in Western Europe
FIG. 9. — A-D, Eomys sp.teeth,MÖhren 20;A, LP4,BSP 1975 XXII 837; B, LM1/2, BSP 1975 XXII 846;C, Rm1/2, BSP 1975 XXII 845;D, Lm1/2, BSP 1975 XXII 742; E-G, Eomyidae gen. et sp.indet.teeth, MÖhren 20; E, LM1/2, BSP 1975 XXII 858; F, RP4? RM1/2?, BSP 1975 XXII 857; G, RM2, BSP 1975 XXII 853. Scale bar: 0.5 mm.
FIG. 5.— A-Q, Eomys aff. E in New data about the diversity of Early Oligocene eomyids (Mammalia, Rodentia) in Western Europe
FIG. 5.— A-Q, Eomys aff. E. antiquus (Aymard, 1853) teeth, Saint-Martin-de-Castillon C; A, RDP4, FSL 98150; B, RP4, FSL 98155; C, RP4, FSL 98157; D, LP4, FSL 98162; E, RM1/2, FSL 98164; F, LM1/2, FSL 98160; G, LM3, FSL 98153; H, LM3, FSL 98169; I, Rdp4, FSL 98167; J, Rp4, FSL 98166; K, Lp4, FSL 98159; L, Lp4, FSL 98154; M, Lp4, FSL 98158; N, Rm1/2, FSL 98151; O, Rm1/2, FSL 98156; P, Lm1/2, FSL 98163; Q, Lm3, FSL 98161; R-V, Eomys aff. E. zitteli Schlosser,1884 teeth, Saint-Martin-de-Castillon J; R, RDP4, FSL 98180; S, RM1/2, FSL 98178; T, RM1/2, FSL 98179; U, Rdp4, FSL 98176; V, Lm1/2, FSL 98177. Scale bar: 0.5 mm.
FIG. 1 in New data about the diversity of Early Oligocene eomyids (Mammalia, Rodentia) in Western Europe
FIG. 1. — Eomys antiquus (Aymard, 1853) upper teeth, MÖhren 13: A, RDP4, BSP 1972 XI 4263; B, RP4, BSP 1972 XI 3908; C, RP4, BSP 1972 XI 3920; D, LP4, BSP 1972 XI 3931; E, LP4, BSP 1972 XI 3926; F, LP4, BSP 1972 XI 3911; G, LP4, BSP 1972 XI 3945; H, LP4, BSP 1972 XI 3947; I, LP4, BSP 1972 XI 3909; J, RM1/2, BSP 1972 XI 4020; K, RM2, BSP 1972 XI 3949; L, RM1/2, BSP 1972 XI 3950; M, RM1/2, BSP 1972 XI 4023; N, LM2, BSP 1972 XI 3999; O, LM3, BSP 1972 XI 4041; P, LM3, BSP 1972 XI 4043; Q, LM3, BSP 1972 XI 4047; R, LM3, BSP 1972 XI 4052; S, LM3, BSP 1972 XI 4038. Scale bar: 0.5 mm.
FIG. 2 in New data about the diversity of Early Oligocene eomyids (Mammalia, Rodentia) in Western Europe
FIG. 2. — Eomys antiquus (Aymard, 1853) lower teeth, MÖhren 13: A, Rdp4, BSP 1972 XI 4261; B, Rdp4, BSP 1972 XI 4262; C, Rp4, BSP 1972 XI 4082; D, Rp4, BSP 1972 XI 4098; E, Lp4, BSP 1972 XI 4074; F, Lp4, BSP 1972 XI 4058; G, Lp4, BSP 1972 XI 4059; H, Lp4, BSP 1972 XI 4060; I, Lp4, BSP 1972 XI 4064; J, Rm1/2, BSP 1972 XI 4122;K, Rm1, BSP 1972 XI 4135; L, Rm1/2, BSP 1972 XI 4133;M, Rm1/2, BSP 1972 XI 4148; N, Lm2, BSP 1972 XI 4171; O, Lm2, BSP 1972 XI 4196; P, Lm1/2, BSP 1972 XI 4135; Q, Lm1, BSP 1972 XI 4118; R, Rm3, BSP 1972 XI 4210; S, Rm3, BSP 1972 XI 4245; T, Rm3, BSP 1972 XI 4251; U, Lm3, BSP 1972 XI 4232. Scale bar: 0.5 mm.
Text-fig. 4. Extant Fraxinus fruits and other groups with similar fruits. a: Ventilago leiocarpa BENTH. (KUN 06190258); b: Liriodendron chinense (HEMSL.) SARG. (KUN 0040571); c: Plenckia populnea REISSEK (K 000537359); d: Fraxinus nigra MARSHALL (KUN 0937878); e: F. anomala TORR. ex S.WATSON (RSA 0064862); f: F. gooddingii LITTLE (USFS 0030124); g: F. platypoda OLIV. (KUN 0027753); h: F. malacophylla HEMSL. (K 000901679); i: F. chinensis ROXB. (KUN 0027530). Scale bar = 1 cm. in Fraxinus L. (Oleaceae) Fruits From The Early Oligocene Of Southwest China And Their Biogeographic Implications
Text-fig. 4. Extant Fraxinus fruits and other groups with similar fruits. a: Ventilago leiocarpa BENTH. (KUN 06190258); b: Liriodendron chinense (HEMSL.) SARG. (KUN 0040571); c: Plenckia populnea REISSEK (K 000537359); d: Fraxinus nigra MARSHALL (KUN 0937878); e: F. anomala TORR. ex S.WATSON (RSA 0064862); f: F. gooddingii LITTLE (USFS 0030124); g: F. platypoda OLIV. (KUN 0027753); h: F. malacophylla HEMSL. (K 000901679); i: F. chinensis ROXB. (KUN 0027530). Scale bar = 1 cm.
Text-fig. 5. Extant Fraxinus fruits photographed by digital camera and X-ray microscopy. a: F. excelsior L. (Sect. Fraxinus); b: F. xanthoxyloides WALL. (Sect. Sciadanthus); c: F. malacophylla HEMSL. (Sect. Ornus). Red arrow refers to the air sac above seed, scale bars = 1 cm. in Fraxinus L. (Oleaceae) Fruits From The Early Oligocene Of Southwest China And Their Biogeographic Implications
Text-fig. 5. Extant Fraxinus fruits photographed by digital camera and X-ray microscopy. a: F. excelsior L. (Sect. Fraxinus); b: F. xanthoxyloides WALL. (Sect. Sciadanthus); c: F. malacophylla HEMSL. (Sect. Ornus). Red arrow refers to the air sac above seed, scale bars = 1 cm.
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.