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.
91
datasets available to search
ShareScore release 0.9.0
Dataset results
91 results for “Lepidosauria”
Figure 2 in A basal sphenodontian (Lepidosauria) from the Jurassic of Patagonia: new insights on the phylogeny and biogeography of Gondwanan rhynchocephalians
Figure 2. Sphenocondor gracilis gen. et sp. nov., holotype (MPEF-PV 2358), right dentary. A, general view of dentary in slab A. B, general view of dentary in slab B (reversed). C, partial restoration combining part and counterpart. Dotted line depicts the symphyseal region preserved as an impression in slab A. Abbreviations: adc, adductor fossa; adt, additional teeth; anf, angular facet; cp, coronoid process; dpp, dentary posterior process; ht, hatchling teeth; mdf, mandibular foramen; mff, mental foramina; sd, secondary bone; st, successional teeth. Scale bars = 5 mm.
Figure 1. A in A basal sphenodontian (Lepidosauria) from the Jurassic of Patagonia: new insights on the phylogeny and biogeography of Gondwanan rhynchocephalians
Figure 1. A, map of Argentina and Chubut Province indicating the study area where the new rhynchocephalian was found. B, close-up of the study area showing Queso Rallado locality, near Cerro Cóndor village.
Data from: Taxonomic reassessment of Clevosaurus latidens Fraser, 1993 (Lepidosauria, Rhynchocephalia) and rhynchocephalian phylogeny based on parsimony and Bayesian inference
Open the record for dataset details and reuse information.
Data from: Integration of molecules and new fossils supports a Triassic origin for Lepidosauria (lizards, snakes, and tuatara)
Background: Lepidosauria (lizards, snakes, tuatara) is a globally distributed and ecologically important group of over 9,000 reptile species. The earliest fossil records are currently restricted to the Late Triassic and often dated to 227 million years ago (Mya). As these early records include taxa that are relatively derived in their morphology (e.g. Brachyrhinodon), an earlier unknown history of Lepidosauria is implied. However, molecular age estimates for Lepidosauria have been problematic; dates for the most recent common ancestor of all lepidosaurs range between approximately 226 and 289 Mya whereas estimates for crown-group Squamata (lizards and snakes) vary more dramatically: 179 to 294 Mya. This uncertainty restricts inferences regarding the patterns of diversification and evolution of Lepidosauria as a whole. Results: Here we report on a rhynchocephalian fossil from the Middle Triassic of Germany (Vellberg) that represents the oldest known record of a lepidosaur from anywhere in the world. Reliably dated to 238--240 Mya, this material is at least 11 million years older than previously known lepidosaur records and is older than some but not all molecular clock estimates for the origin of lepidosaurs. Using RAG1 sequence data from 77 extant taxa and the new fossil specimens two of several calibrations, we estimate that the most recent common ancestor of Lepidosauria lived at least 242 Mya (238--249.5), and crown-group Squamata originated around 193 Mya (176--213). Conclusion: A Early/Middle Triassic date for the origin of Lepidosauria disagrees with previous estimates deep within the Permian and suggests the group evolved as part of the faunal recovery after the end-Permain mass extinction as the climate became more humid. Our origin time for crown-group Squamata coincides with shifts towards warmer climates and dramatic changes in fauna and flora. Most major subclades within Squamata originated in the Cretaceous postdating major continental fragmentation. The Vellberg fossil locality is expected to become an important resource for providing a more balanced picture of the Triassic and for bridging gaps in the fossil record of several other major vertebrate groups.
Fig. 18 in Osteology Of Gobiderma Pulchrum (Monstersauria, Lepidosauria, Reptilia)
Fig. 18. Gobiderma pulcrhum (IGM 3/57), partial anterior part of the skull with partial mandibles. The A, dorsal and B, ventral parts of the specimen have been eroded, thus allowing observation of bone articulations.
Fig. 2 in Osteology Of Gobiderma Pulchrum (Monstersauria, Lepidosauria, Reptilia)
Fig. 2. The divisions of the skull as laid out in the manuscript. The antorbital region includes the part of the skull anterior to the anteriormost margin of the external orbital rim. The temporal area includes the skull posterior to the posteriormost margin of the orbit. The orbital area lies between those two areas. The facial part of the skull extends from the anterior margin of the ectopterygoid-maxillary contact forward. The cranial portion includes the part of the skull posterior to that point. Modified from Montero and Gans (1999) and as described by Conrad (2004).
Fig. 33 in Osteology Of Gobiderma Pulchrum (Monstersauria, Lepidosauria, Reptilia)
Fig. 33. Braincase of Gobiderma pulchrum. A. IGM 3/55 in ventral view and IGM 3/905 in B. ventral, C. anterior, and D. posterior/posterodorsal views.
New sphenodontian (Reptilia: Lepidosauria) from a novel Late Triassic palaeobiota in western North America sheds light on the earliest radiation of herbivorous lepidosaurs
Open the record for dataset details and reuse information.
Data from: Integration of molecules and new fossils supports a Triassic origin for Lepidosauria (lizards, snakes, and tuatara)
Open the record for dataset details and reuse information.
Figure 1. A in Anatomical study of two previously undescribed specimens of Clevosaurus hudsoni (Lepidosauria: Rhynchocephalia) from Cromhall Quarry, UK, aided by computed tomography, yields additional information on the skeleton and hitherto undescribed bones
Figure 1. A, palaeogeographical map showing the principal Late Triassic/Early Jurassic tetrapod-bearing fissure deposits near Bristol, with current coastline superimposed (modified from Whiteside & Marshall, 2008). B, simplified geology map of the area around Cromhall Quarry. Mercia Mudstone Group is Triassic, Old Red Sandstone is Devonian and the other labelled strata are Carboniferous (geology map and legend derived from BGS website Open Science data, last accessed 29 October 2017).
Figure 11 in Anatomical study of two previously undescribed specimens of Clevosaurus hudsoni (Lepidosauria: Rhynchocephalia) from Cromhall Quarry, UK, aided by computed tomography, yields additional information on the skeleton and hitherto undescribed bones
Figure 11. Photographs and surface models of Clevosaurus hudsoni specimen NHMUK PV R36832. Left humerus in (A) anterodorsal, (B) dorsal and (C) ventral views. Left ulna in (D) dorsolateral, (E) anterior and (F) posterior views. G, left distal forelimb bones in lateral view. H, isolated distal left forelimb bones in lateral view.
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.