Data from: The smallest known Devonian tetrapod shows unexpectedly derived features, Part 1 of 2

Synchrotron microtomography data set of Devonian tetrapod jaw NHMD 116368, holotype and only specimen of Brittagnathus minutus.

The specimen, NHMD 116368, (field number MGUH f.n. 1373) was collected in July 1987 from the Acanthostega-yielding horizon on Stensiö Bjerg, Gauss Peninsula, East Greenland. It was initially prepared mechanically, which revealed the posterior end of the lateral surface and the lower margin and prearticular on the medial surface. In September 2016 the specimen was imaged using propagation phase contrast synchrotron microtomography (PPC-SRmCT) at the European Synchrotron Radiation Facility (ESRF) in Grenoble, France. The scan was part of Experiment ES-505 and was made courtesy of Valéria Vaskaninova to whom the beamtime had been awarded. The voxel size of the scan was 13.49 mm, made with single distance phase retrieval and a propagation distance of 5m. The reconstructed volume was converted into a stack of 16 bit TIFF images.

Because each of the 1708 images is a separate file, and Dryad imposes a 1000-file limit on data sets, the stack has been split in two: this is Part 1, containing the first 973 images. Part 2 is available at doi:10.5061/dryad.vt4b8gtng

Funding provided by: Knut och Alice Wallenbergs Stiftelse
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100004063
Award Number: Wallenberg Scholarship (not numbered)