Dinosaur Eggs, Meteorites, Or Signs of an Ancient Civilisation?
It is strange that whoever wrote the headline even considered that these concretions might be either
meteorites or dinosaur eggs. I guess those were added simply to get people to read the article.
Dinosaur eggs, meteorites, signs of an ancient civilisation:what are these giant balls? By Ann Liesowska, Siberian times Found 30 metres underground at a coal mine, they're dubbed 'Jurassic pearls' or the marbles of a Siberian colossus.
Siberia's 'Jurassic Pearls' Sign of Ancient Civilization; Giant Balls Stun Locals by Jessica F, Nature world News,
Are Siberia's 'Jurassic Pearls' the remains of an ancient civilisation? Bizarre colour-changing stones leave locals stumped by Will Stewart, Daily Mail, June 27, 2016
For some pseudo-eggs, look at:
Dinosaur eggs' discovered in Chechnya (Photos, Video)
RT News, https://www.rt.com/news/chechnya-dinosaur-eggs-russia-333/
Huge Dinosaur Eggs Found in Chechnya, Scientists Claim
April 17, 2012 By Lama Hasan
Other web pages about meter-scale concretions.
1. Prehistoric UFOs? (No, Meter-scale Concretions)
Hall of Ma'at - http://www.hallofmaat.com/read.php?1,604622,604622#msg-604622
2. Archaeologist claims boulder is the world's oldest man-made sphere, Hall of Ma'at