[Rockhounds] The Mysterious Origin of Nebraska's "Devil's Corkscrew" Fossils

[Paul]

The Mysterious Origin of Nebraska's "Devil's Corkscrew" Fossils
Mental Floss Feb 1, 2018
http://mentalfloss.com/article/527706/mysterious-origin-nebraskas-devils-corkscrew-fossils

Some papers are:

Martin, L.D. and Bennett, D.K., 1977. The burrows of the Miocene
beaver Palaeocastor, western Nebraska, USA. Palaeogeography,
Palaeoclimatology, Palaeoecology, 22(3), pp. 173-193.

Meyer, R.C., 1999. Helical burrows as a palaeoclimate response:
Daimonelix by Palaeocastor. Palaeogeography, Palaeoclimatology,
Palaeoecology, 147(3-4), pp. 291-298.

Smith, R.M., 1987. Helical burrow casts of therapsid origin from the
Beaufort Group (Permian) of South Africa. Palaeogeography,
Palaeoclimatology, Palaeoecology, 60, pp. 155-169.

Doody, J.S., James, H., Colyvas, K., Mchenry, C.R. and Clulow, S.,
2015. Deep nesting in a lizard, déjà vu devil's corkscrews: first helical
reptile burrow and deepest vertebrate nest. Biological Journal of the
Linnean Society, 116(1), pp. 13-26.

https://www.researchgate.net/publication/280559331_Deep_Nesting_in_a_Lizard_Deja_Vu_Devil%27s_Corkscrews_First_Helical_Reptile_Burrow_and_Deepest_Vertebrate_Nest

https://www.researchgate.net/profile/Simon_Clulow/publication/280940311_Deep_nesting_in_a_lizard_deja_vu_devil%27s_corkscrews_First_helical_reptile_burrow_and_deepest_vertebrate_nest/links/5a0ad68c0f7e9b0cc02355d0/Deep-nesting-in-a-lizard-deja-vu-devils-corkscrews-First-helical-reptile-burrow-and-deepest-vertebrate-nest.pdf

Yours,

Paul H.