Projects
1467 Projects
Media are grouped by projects created by users. Projects tend to contain media tied together by a theme. A project might represent the dataset for a single peer-reviewed paper, the results of a collections digitization project, or data for a digital lesson plan.
Projects can be used to share media ownership and access between project members, and projects can also be used to publish assortments of media and specimens for access and discovery by the public. If you want to share media ownership and access with multiple users across multiple projects, consider creating a user team. Projects can be managed by teams, and users with access to that team also gain access to any projects managed by that team.
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Title | Description | Team | Creator | Media | Objects |
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Display all details of Megafauna3D: Late Pleistocene megafauna fossils from Uruguay | Cite as: Varela, L., Tambusso, P. S., Batallés, M., Costoya, G., & Fariña, R. A. (2025). The Megafauna3D Dataset: 3D Models of Late Pleistocene Megafauna Fossils From Uruguay. Journal of Open Archaeology Data, 13. https://openarchaeologydata.metajnl.com/articles/10.5334/joad.141 This dataset consists of 3D digital models of fossilized remains from the Pleistocene megafauna of Uruguay. The fossils, housed in collections across Uruguay, were digitized through photogrammetry, structured light scanning, and CT scanning. The dataset includes models of extinct species such as ground sloths, glyptodonts, mastodonts, and saber-toothed cats, which played significant roles in the Pleistocene ecosystems. | Fariña, Richard | 60 | 60 | |
Display all details of Majungasaurus crenatissimus - UA 8709 | Nearly complete, articulated, but poorly preserved skull including maxillae, nasals, frontals, jugals, lacrimals, right postorbital and squamosal, pterygoids, ectopterygoids, right palatine, and partial braincase, and both lower jaws. See Krause, D. W., Sampson, S. D., Carrano, M. T., & O'Connor, P. M. (2007). Overview of the history of discovery, taxonomy, phylogeny, and biogeography of Majungasaurus crenatissimus (Theropoda: Abelisauridae) from the Late Cretaceous of Madagascar. Journal of Vertebrate Paleontology, 27(S2), 1-20. | O'Connor, Patrick | 45 | 1 | |
Display all details of TEMPO Mammals | Micro-CT scans and surfaces of extant mammals | 4701 | 501 | ||
Display all details of Spider MicroCT Scans | 0 | 0 | |||
Display all details of First record of a rare plioplatecarpine mosasaur Latoplatecarpus in the Upper Cretaceous of Europe as further evidence of a semi-global Campanian marine vertebrate fauna | The study of mosasaurid materials from the Campanian Rybushka Formation of the Beloe Ozero locality (Saratov Region, Russia) revealed that the only plioplatecarpine taxon identifiable at genus and species level is Latoplatecarpus willistoni. Among other abundant North American plioplatecarpines, this rare species is known from only a few specimens. New plioplatecarpine material from Russia comprises isolated but exceptionally well preserved cranial and postcranial elements including maxilla, dentary, frontals, pterygoid, quadrates, fragment of braincase, elements of pectoral girdle and vertebrae, from which most cranial remains can be positively referred to L. willistoni. Considering that Campanian fossil record of plioplatecarpines is extremely scarce in Europe compared to that from North America, specimens from the Beloe Ozero locality shed new light on paleogeography of the group. The first record of Latoplatecarpus outside of North America demonstrates that this genus had a significantly wider geographic and stratigraphic distribution. Our study augments previous evidence that many mosasaurid taxa had cosmopolitan distribution across the Atlantic, and that Campanian marine vertebrate fauna was likely homogenous in the Western Interior Seaway and European epicontinental seas. | Dmitry Grigoriev | 16 | 16 | |
Display all details of The NYITCOM Anatomy Collection | 30 | 30 | |||
Display all details of oUTCT PEN | oUTCT is partnering with the oVert (openVertebrate) project to make nearly 9 terabytes of existing high-resolution X-ray computed tomographic (HRXCT) data publicly accessible, and train the next generation of students in best practices for these data. The University of Texas High-Resolution X-ray CT Facility (UTCT) was established in 1997 to make HRXCT – a direct descendant of medical CT – available to researchers in the natural sciences. Since then, scientists from around the world have brought their most important and precious natural history specimens to UTCT to image and measure their interior features nondestructively. This application of HRXCT technology has been tremendously successful, resulting in the proliferation of scanners at institutions across the country. But UTCT datasets, acquired in part via dozens of NSF grants and cited more than 18,000 times in academic publications, remain in high demand due to their broad scope, high data quality, and historical significance. This demand has been fueled in part by the public-facing Digital Library of Morphology (DigiMorph.org), an NSF-funded project online since 2002 and housed at UTCT, which serves HRXCT-derived animations for more than 1,000 biological and paleontological specimens. In the oUTCT project, UTCT and DigiMorph are partnering with oVert and iDigBio (both at the University of Florida) and the MorphoSource data repository (Duke University) to make this unparalleled collection of HRXCT datasets more readily discoverable and more easily repurposed. oUTCT will also provide training to the oVert community, which spans nearly 20 universities and academic institutions, to maximize the scientific impact of that project. Over the course of two years, oUTCT is uploading HRXCT data of nearly 1,500 fossil and extant vertebrate species scanned for 90 UTCT clients to MorphoSource, where they can be easily discovered and downloaded by everyone from scientists to artists to K-12 educators. This mobilization is being accomplished by undergraduate students employed at UTCT, who are learning the basics of HRXCT data acquisition and visualization as well as elementary bioinformatics associated with iDigBio, DigiMorph, and MorphoSource. In addition to this educational outreach, UTCT will host two short courses per year, cosponsored by oVert and iDigBio, to train students and scientists associated with oVert and MorphoSource in the fundamentals of HRXCT data acquisition, visualization, analysis, and long-term management. These activities will expand the impact of the original oVert project and maximize the return on NSF’s investment in it, UTCT, DigiMorph, iDigBio, and MorphoSource. | 2662 | 2062 | ||
Display all details of Genomic and morphological evidence support contemporary three-way interspecific hybridization in ranid frogs | Hybridization is increasingly recognized as common throughout and beyond speciation rather than an anomaly. Sympatric taxa are expected to exhibit strong reproductive isolation, and while hybridization may occur, it often results in inviable offspring. We investigated hybridization among three ranid frogs (Rana areolata, R. palustris, and R. sphenocephala) in eastern Oklahoma, where their distributions and breeding phenology overlap. Using micro-CT scans of cranial morphology, genomic SNP data, and phenological records, we confirmed two putative hybrids collected in the field — remarkable given the phylogenetic distance between these non-sister taxa. Genomic data show split ancestry from parental populations, representing one R. areolata × R. palustris and one R. areolata × R. sphenocephala. Cranial morphology indicates hybrids exhibit intermediate phenotypes, and our assessment identified a third likely hybrid, a museum specimen collected two decades earlier from the same area. Both genetically confirmed hybrids were R. areolata backcrosses, but minimal introgression throughout the dataset suggests hybrid fitness may be lower than that of parental populations. Hybridization appears facilitated by overlapping breeding strategies and ecological factors leading to misdirected amplexus. This study provides the first documentation of natural hybridization in R. areolata, a species of conservation concern throughout its range. Our findings underscore the utility of high-resolution morphological data (micro-CT) in complementing genomic approaches for hybrid diagnosis and suggest cranial morphology may be an effective method for hybrid identification in similar systems. Understanding this atypical three-species hybridization has important implications for conservation, as hybrid fitness and introgression can influence population dynamics and genetic integrity. | 0 | 0 | ||
Display all details of Fish from the Late Cretaceous of Alaska | This project archives data presented in the following paper: BRINKMAN, D. B., DRUCKENMILLER, P, LÓPEZ, J. A., ERICKSON, G. M., EBERLE, J., MUNOZ, X., Wilson, L.N., MURRAY, A. M., VAN LOON, L., and BANERJEE, N. in progress, Project: Late Cretaceous fish fossils from the Prince Creek Formation, Alaska. | D. B. Brinkman | 23 | 12 | |
Display all details of Chatar & al craniomandibular shape of cat like carnivorans | Associated publication: Chatar, N., Michaud, M., Tamagnini, D., Fischer, V. (2024) Evolutionary patterns of cat-like carnivorans unveils drivers of the sabertoothed morphology. Current Biology [IN PRESS] Summary The sabertooth morphology stands as a classic case of convergence, manifesting recurrently across various vertebrate groups, prominently within two carnivorans clades: felids and nimravids. Nonetheless, the evolutionary mechanisms driving these recurring phenotypes remain insufficiently understood, lacking a robust phylogenetic and spatiotemporal framework. We reconstruct into the tempo and mode of cranio-mandibular evolution of Felidae and Nimravidae and evaluate the strength of the dichotomy between conical and sabertoothed species but also within sabertoothed morphotypes. To do so, we investigate morphological variation, convergence, phenotypic integration, and evolutionary rates, employing a comprehensive dataset of nearly 200 3D models encompassing mandibles and crania from both extinct and extant feline-like carnivorans, spanning their entire evolutionary timeline. Our results reject the hypothesis of a distinctive sabretooth morphology, revealing instead a continuous spectrum of feline-like phenotypes in both cranium and mandible, with sporadic instances of unequivocal convergence. Disparity peaked at the end of the Miocene and is usually higher in clades containing taxa with extreme sabertoothed adaptations. We show that taxa with saberteeth exhibit a lower degree of craniomandibular integration, allowing to exhibit a greater range of phenotypes. Those same groups usually show a burst of morphological evolutionary rate at the beginning of their evolutionary history. Consequently, we propose that a reduced degree of integration coupled with rapid evolutionary rates emerge as key components in the development of a sabertoothed morphology in multiple clades. Key words: Felidae, Nimravidae, Convergence, 3D geometric morphometrics, integration, Disparity, Skull, Mandible, Rate of evolution | 30 | 26 |