994 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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Listing of items you have deposited in MorphoSource
Title Description Team Creator Media Objects
Display all details of Echidna development MicroCT and diceCT scans of echidna (Tachyglossus aculeatus) embryos and hatchlings. Renfree, Marilyn 6 6
Display all details of Yoakum Dissertation MicroCT scans 327 168
Display all details of Triassic stem caecilian supports dissorophoid origin of living amphibians Living amphibians (Lissamphibia) include frogs and salamanders (Batrachia), and the limbless worm-like caecilians (Gymnophiona). The estimated Paleozoic gymnophionan-batrachian molecular divergence suggests a major gap in the record of crown lissamphibians prior to their earliest fossil occurrences in the Triassic Period. Recent studies find a monophyletic Batrachia within dissorophoid temnospondyls, but the absence of pre-Jurassic caecilian fossils has made their relationships to batrachians and affinities to Paleozoic tetrapods controversial. Here we report the geologically-oldest stem caecilian, a crown lissamphibian, from the Late Triassic of Arizona, USA, extending the caecilian record by ~35 Ma. These fossils illuminate the tempo and mode of early caecilian morphological and functional evolution, demonstrating a delayed acquisition of musculoskeletal features associated with fossoriality in living caecilians, including the dual jaw closure mechanism, reduced orbits, and the tentacular organ. The provenance of these fossils suggests a Pangean equatorial origin for caecilians, implying that living caecilian biogeography reflects conserved aspects of caecilian function and physiology in combination with vicariance patterns driven by plate tectonics. These fossils reveal a combination of features unique to caecilians alongside features shared with batrachian and dissorophoid temnospondyls, providing new and compelling evidence supporting a single origin of living amphibians within dissorophoid temnospondyls. Kligman, Ben 8 8
Display all details of Rorqual Baleen CT scans 7 7
Display all details of Macroevolution of Leporids Ongoing research into the macroevolutionary patterns of skeletal form (and associated structures) in rabbits and hares (Leporidae). Publications: 1. Kraatz, B. & Sherratt, E. Evolutionary morphology of the rabbit skull. Peerj 4, e2453 (2016). 2. Kraatz, B. P., Sherratt, E., Bumacod, N. & Wedel, M. J. Ecological correlates to cranial morphology in Leporids (Mammalia, Lagomorpha). Peerj 3, e844 (2015). 3. Kraatz, B. et al. Lagomorpha as a Model Morphological System. Frontiers Ecol Evol 09, 636402 (2021). 4. Todorov, O. et al. Down a rabbit hole: Burrowing behaviour and larger home ranges are related to larger brains in Leporids. Journal of Mammalian Evolution (2022). 5. Martin, E. M., Young, J. W., Fellmann, C. D., Kraatz, B. & Sherratt, E. Anatomical Correlates of Cursoriality are Compromised by Body Size and Propensity to Burrow in a Group of Small Mammals (Lagomorpha). Evolutionary Biology 1–18 (2022) 6. Sherratt, E. & Kraatz, B. Multilevel analysis of integration and disparity in the mammalian skull. Evolution (2023). In press Research funded by: Western University of Health Sciences, USA University of Adelaide, Australia Australian Research Council Future Fellowship (FT190100803) Key Researchers: Brian Kraatz, Emma Sherratt, Kraatz, Brian 107 99
Display all details of Dave Green palaeosurface Textured scans of Impressions 2, 3, 4, 5, and 7 from the palaeosurface David Groenewald 4 4
Display all details of Plateau et al., in prep. Comparative digital reconstruction of ontogenetic skull variation in altricial and precocial birds Complete after publication Plateau, Olivia 29 15
Display all details of New data on the neuroanatomy of basal eusuchian crocodylomorphs (Allodaposuchidae) from the Late Cretaceous of Spain Reference (non published) Abstract The South-Pyrenean basin (northeast Spain) have yielded a rich and diverse collection of vertebrate fossil remains from the latestmost Cretaceous (late Maastrichtian), in which Crocodylomorpha is one of the best represented clades. This record includes remains of the last representatives of the basal eusuchian clade Allodaposuchidae prior to their disappearance after the Cretaceous-Paleogene (K/Pg) extinction event. Allodaposuchids of the latestmost Cretaceous represent a key to understand the early evolution of the sister-group Crocodylia, since the latter began to be the dominant clade worldwide during the Cenozoic. In this context, the holotype skulls of the allodaposuchids Arenysuchus gascabadiolorum and Agaresuchus subjuniperus were CT scanned to obtain the three-dimensional reconstruction of their inner cranial cavities, including the brain, nerves, blood vessels, paratympanic sinus system and the paranasal sinuses. These cavities were compared with those of other Crocodylomorphs, with special emphasis on other allodaposuchids and related clades such as Crocodylia. The endocranial anatomy of both taxa is consistent with their phylogenetic position as basal eusuchians, showing morphologies and neurosensorial and cognitive capabilities similar to those present in other allodaposuchids such as Lohuecosuchus megadontos and Agaresuchus fontisensis. The inferred sensorial capabilities, such as an acute sense of olfaction and relatively good sight, fall within the range observed in most eusuchians and the crown-group Crocodylia, suggesting that the sensory and cognitive skills observed in extant crocodylians were already similar at the end of the Mesozoic. Thanks to this study, all the known genera of Allodapusuchidae have reconstructions of their inner skull cavities, therefore, this clade is now one of the best neuroanatomically studied groups among Neosuchia, giving valuable information on the neurological and neurosensorial evolution of the basal eusuchians and the early radiation of modern crocodiles. Puértolas-Pascual, Eduardo 4 2
Display all details of Royal Belgian Institute for Natural Sciences - Palaeontology Collection - Fossil Vertebrates RBINS - Paleontology Collections Annelise Folie 104 34
Display all details of Digitizing the Florida Museum of Natural History's Herpetology collections Part of an ongoing project to maximize the impact and accessibility of the collections at the Florida Museum of Natural History. 1490 699
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