'Hell fish' likely killed by dinosaur-ending asteroid is preserved in stunning detail
Joanna Thompson, Live Science, October 12, 2022
Four exceptional fossils represent newly described species.
https://www.livescience.com/3d-sturgeon-fossils-tanis
The open access paper is:
Hilton, E.J. and Grande, L., 2022. Late Cretaceous sturgeons (Acipenseridae)
from North America, with two new species from the Tanis site in the Hell
Creek Formation of North Dakota. Journal of Paleontology, pp.1-29.
Another open access paper is:
DePalma, R.A., Smit, J., Burnham, D.A., Kuiper, K., Manning, P.L.,
Oleinik, A., Larson, P., Maurrasse, F.J., Vellekoop, J., Richards, M.A.
and Gurche, L., 2019. A seismically induced onshore surge deposit at
the KPg boundary, North Dakota. Proceedings of the National
Academy of Sciences, 116(17), pp.8190-8199.
Yours,
Paul H.