Putative fossil blood cells reinterpreted as diagenetic structures

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RT @DanaKorneisel: Not bad for coming out right at the end of the year. Got an email today that 'Putative fossil blood cells reinterpreted…
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RT @DanaKorneisel: Not bad for coming out right at the end of the year. Got an email today that 'Putative fossil blood cells reinterpreted…
RT @DanaKorneisel: Not bad for coming out right at the end of the year. Got an email today that 'Putative fossil blood cells reinterpreted…
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RT @DanaKorneisel: New Open Access research published today in @PeerJLife ! In this paper, my coauthors and I look the purported dinosaur…
RT @DanaKorneisel: New Open Access research published today in @PeerJLife ! In this paper, my coauthors and I look the purported dinosaur…
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RT @PeerJLife: . @DanaKorneisel et al. present new research - Putative fossil blood cells reinterpreted as diagenetic structures Read the…
RT @DanaKorneisel: New Open Access research published today in @PeerJLife ! In this paper, my coauthors and I look the purported dinosaur…
RT @PeerJLife: . @DanaKorneisel et al. present new research - Putative fossil blood cells reinterpreted as diagenetic structures Read the…
RT @PeerJLife: . @DanaKorneisel et al. present new research - Putative fossil blood cells reinterpreted as diagenetic structures Read the…
1203 days ago
RT @PeerJLife: . @DanaKorneisel et al. present new research - Putative fossil blood cells reinterpreted as diagenetic structures Read the…
RT @DanaKorneisel: New Open Access research published today in @PeerJLife ! In this paper, my coauthors and I look the purported dinosaur…
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RT @DanaKorneisel: New Open Access research published today in @PeerJLife ! In this paper, my coauthors and I look the purported dinosaur…
RT @TomHoltzPaleo: https://t.co/nw7pt9q5Xv
RT @DanaKorneisel: New Open Access research published today in @PeerJLife ! In this paper, my coauthors and I look the purported dinosaur…
RT @DanaKorneisel: New Open Access research published today in @PeerJLife ! In this paper, my coauthors and I look the purported dinosaur…
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RT @DanaKorneisel: New Open Access research published today in @PeerJLife ! In this paper, my coauthors and I look the purported dinosaur…
RT @DanaKorneisel: New Open Access research published today in @PeerJLife ! In this paper, my coauthors and I look the purported dinosaur…
RT @DanaKorneisel: New Open Access research published today in @PeerJLife ! In this paper, my coauthors and I look the purported dinosaur…
Paleontology and Evolutionary Science

Main article text

 

Introduction

Geological setting

Materials & Methods

a. Petrographic sectioning

b. Raman spectroscopy

c. Energy dispersive X-ray spectrometry

d. Time of flight - secondary ion mass spectrometry

Results

a. Light microscopy

b. Raman spectroscopy

c. Energy dispersive X-ray spectrometry

i. Hitachi TM-3000

ii. FEI quanta 600FEG

d. Time of flight –secondary ion mass spectrometry

Discussion

Conclusions

Supplemental Information

Peak assignment data for entire TOF-SIMS spectrum documenting manual adjustments and assignment criteria

DOI: 10.7717/peerj.12651/supp-1

Raman spectra with all data points analyzed in this manuscript continuously reveal the pattern exemplified in the in-text figure

Each spectrum represents a reading at 1/10 power unless otherwise specified. A brief description of each point is in the sheet title.

DOI: 10.7717/peerj.12651/supp-2

Raw raman spectra acquired from epoxy glued to plexiglass slide do not recover potential contaminating peaks

DOI: 10.7717/peerj.12651/supp-3

The entire TOF_SIMS spectrum shows peaks that correlate to the data file on peak assignment

DOI: 10.7717/peerj.12651/supp-4

Raman apatite peak positions, Raman spectra for mounting media, and additional TOF-SIMS data respectively

DOI: 10.7717/peerj.12651/supp-5

Additional Information and Declarations

Competing Interests

The authors declare there are no competing interests.

Author Contributions

Dana E. Korneisel conceived and designed the experiments, performed the experiments, analyzed the data, prepared figures and/or tables, authored or reviewed drafts of the paper, and approved the final draft.

Sterling J. Nesbitt and Sarah Werning analyzed the data, authored or reviewed drafts of the paper, and approved the final draft.

Shuhai Xiao conceived and designed the experiments, analyzed the data, authored or reviewed drafts of the paper, and approved the final draft.

Field Study Permissions

The following information was supplied relating to field study approvals (i.e., approving body and any reference numbers):

Specimen observations and materials were provided by Dr. Xu Xing with permission from the Institute of Vertebrate Paleontology and Paleoanthropology in Beijing for destructive sampling.

Data Availability

The following information was supplied regarding data availability:

All Raman spectra as well as the TOF-SIMS spectrum and peak assignment data are available in the Supplemental File.

The specimens used herein are accessioned at the IVPP in Beijing with the holotype under the museum number IVPP-V11559. The slide numbers are 2018-X1, 2018-X2, 2018-L1, 2018-L2, 2018-L3, 2018-L4, 2018-L5, HO-9601, HO-9602, LJ98B-1, and LJ98B-4, 2018-1, and 2018-X3. The modern alligator bone sample is from un-accessioned material stored in the Virginia Tech osteology collection.

Funding

This research was supported by a NASA Exobiology grant to SX (award number 80NSSC18K1086) and a GSA graduate student research grant to DEK. There was no additional external funding received for this study. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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