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ACKNOWLEDGMENTS
The fossils from the Národní Muzeum (NM) in Prague were
scanned at the European Synchrotron Radiation Facility (ESRF) in
Grenoble as parts of the proposals ES505 and ES673. We thank
V. Fernandez for help during the scanning session ES673;
D. Snitting for assistance with the segmenting and rendering
software; M. M. Smith and D. Goujet for consultations concerning
specimen CPW.9; F. Ahmed and A. Garbout (Image and Analysis
Centre, Natural History Museum) for access and assistance
with micro-CT scanning; G. Edgecombe for performing the
phylogenetic analysis; and three anonymous reviewers for their
comments.Funding:V.V. was supported by the Center for
Geosphere Dynamics (UNCE/SCI/006). B.E. was supported by
the Ministry of Culture of the Czech Republic via institutional
financing of the National Museum (DKRVO 2019-2023/2.V.b,
00023272). V.V.’s access to ESRF was made possible by the
MinisterstvoŠkolství, MládežeaTĕlovýchovy (MŠMT) funding
33914/2017-1. V.V. and D.C. were supported by a Wallenberg
Scholarship from the Knut and Alice Wallenberg Foundation,
awarded to P.E.A.Author contributions:Conceptualization: V.V.,
P.E.A., and D.C.; Data curation: P.T. and B.E.; Formal analysis:
P.T., Z.J., V.V., D.C., and P.E.A.; Funding acquisition: P.E.A.;
Investigation: V.V., P.E.A., and D.C.; Methodology: V.V., D.C., and
P.E.A.; Project administration: V.V.; Resources: B.E., Z.J., and H.B.;
Software: Z.J.; Supervision: P.E.A.; Validation: V.V., D.C., and
P.E.A.; Visualization: V.V., D.C., and P.E.A.; Writing–original draft:
V.V., P.E.A., and D.C.; Writing–review and editing: all authors.
Competing interests:The authors declare no competing interests.Data and materials availability:Synchrotron data for the NM
material are available at http://paleo.esrf.eu, and CT data for
CPW.9 are available on Dryad ( 29 ). The fossils are available in the
NM, except for CPW.9 (which is deposited at the Museum
National d’Histoire Naturelle in Paris) and theLophosteusmaterial
(which is registered to the Geological Institute in Tallinn and
currently stored at Uppsala University).SUPPLEMENTARY MATERIALS
science.sciencemag.org/content/369/6500/211/suppl/DC1
Materials and Methods
Supplementary Text
Figs. S1 to S14
Table S1
References ( 30 – 33 )
MDAR Reproducibility Checklist22 October 2019; accepted 18 May 2020
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