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Supplemental Information

SEM image and spectra of KUMIP 389538

An SEM image and the spectra and weight percentages of elements for the portion of the D. cf. peltatum fossil, KUMIP specimen 389538, subjected to elemental mapping; maps shown in Fig. 1.

DOI: 10.7287/peerj.preprints.2706v2/supp-1

SEM image and spectra of another part of KUMIP 389538

An SEM image and the spectra and weight percentages of elements for a different portion of the D. cf. peltatum fossil, KUMIP specimen 389538, that was also subjected to elemental mapping; maps shown in supplemental file “ElementalmapsKUMIP389538a2.pdf”.

DOI: 10.7287/peerj.preprints.2706v2/supp-2

Additional Information

Competing Interests

The authors declare that they have no competing interests. Richie Kurkewicz is an employee of Pangaea Fossils Ltd.

Author Contributions

Bruce S Lieberman conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Richard Kurkewicz contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Heather Shinogle performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, prepared figures and/or tables, reviewed drafts of the paper.

Julien Kimmig analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Breandán Anraoi MacGabhann analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, reviewed drafts of the paper.

Data Deposition

The following information was supplied regarding data availability:

The raw data has been supplied as a supplementary file.

Funding

This research was supported by the National Science Foundation (EF-1206757). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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