As discussed recently on the Ichnology Facebook page, these are inorganically produced structures. The author of Palaeotrochis, Ebenezer Emmons, wanted to discover fossils of "Taconic" (latest pre-Cambrian) age, and in this case found pseudofossils. His collection was destroyed in the American Civil War. They are certainly worth studying as pseudofossils, and it would be interesting to read a new article about them; however, they are neither body fossils nor trace fossils. See:

http://dc.lib.unc.edu/cdm/ref/collection/jncas/id/798

Rafael:

Pseudofossils arranged in an equiangular spiral pattern suggesting inherent Golden Mean, an essential feature of Life..

Best

Syed

You can also see this work of 1901 (in Spanish): http://xcaret.igeofcu.unam.mx/bogeolpdf/geo15/parte3.pdf

which maintains the inorganic formation in rhyolitic tuffs by filling with silica of small cavities. He also mentions examples from Japan.

Also Stuckey, 1967 :

http://digital.ncdcr.gov/cdm/ref/collection/p16062coll9/id/13544

Best,

Javier Martínez-Salanova

P.D. Find a volcanologist specialist

Thank you for the very useful articles, I'm making a file with everything that has been written about it and reference images. I hope to soon find a specialist researcher interested in analyzing my specimens and hopefully writing a paper about it. I'll try to find a volcanologist as you suggest.

Best,

Rafael Rodríguez

One more consideration: those structures remind me of those produced by pressure (impact, tectonic or lithostatic)

Best,

Javier Martínez-Salanova