Dinosaur eggs said found in Russia's Chechnya
John Siebel wrote,
"The general opinion on the Paleolist is that they're concretions."
These alleged "dinosaur eggs" are clearly cannonball concretions.
Proof of this interpretation is seen in one picture that shows three
of these pseudoeggs merged together. For comparison, a collection
of pictures of cannonball concretions can be seen in (1.) "Tout ce
que la nature ne peut pas faire, IV : sphères de pierre" at:
(2.) " Boules de pierre en Slovaquie, République Tchèque et Pologne" at:
and (3.) "The Moeraki Boulders" at:
Some papers, which discuss in detail examples of such
natural stone balls, which are spheroidal (cannonball)
Boles, J. R., Landis, C. A., and Dale, P., 1985, The Moeraki
boulders; anatomy of some septarian concretions. Journal of
Sedimentary Petrology. vol. 55, no. 3, pp. 398-406.
McBride, E. F., Picard, M. D., Milliken, K. M., 2003, Calcite-
cemented concretions in Cretaceous sandstone, Wyoming and
Utah, U.S.A. Journal of Sedimentary Research. vol. 73, no. 3.
Horne, R. R.., and Taylor, B. J., 1969, Calcareous concretions
in the lower Cretaceous sediments of south-eastern Alexander
Island. British Antarctic Survey Bulletin. vol. 21, pp. 19-32.
Krajewski, K. P., and Luks, B., 2003, Origin of 'cannon-ball'
concretions in the Carolinefjellet Formation (Lower Cretaceous),
Spitsbergen. Polish Polar Research. vol. 24, no. 3-4, pp. 217-242.