Search the Community
Showing results for tags 'calculus'.
-
Hi everybody, I'm hoping you can provide help in identifying the following object. I am a complete amateur, but have been wondering about this specific rock for a long time. I tried to make clear pictures, some on centimeter paper. Short story about the object: my mother has lived in South Portugal for a long time, near a river that usually runs dry in the summer. Over the years she and I collected numerous beautifull stones there, usually no fossils. The area knows some places (higher up in the mountains) that are fossil rich, but those do not resemble this specific one. At one time I saw this 'stone' in the collection and asked my mother about it. She could only say "I think I found it in the river a while ago", but she wasn't totally sure. I was - and still am - mesmerized by it, and asked if she would be ok if I kept it at my place. That was ok, as long as I promised never to break it open :-) That was about 10 years ago. I have always been wondering if it could be a dinosaur egg, but every time I started strolling the internet I found information that indicated it probably wasn't. Most indicative (I think) is that the outside doesn't resemble the usual egg shells, and is way too much intact/smooth (apart from the big hole). Also, especially the bottom side of the surface rather appears to have been 'moldable' at some point, rather than a a hard breakable shell. Yet, it is egg shaped and it is pretty clear that it has interesting fossilized structures inside. Every now and then I pick it up to have a look at different angles, and I can't help but wondering what those structures are and what is further inside.. I read somewhere that calculi are sometimes mistaken for dinosaur eggs, but I have no idea if this could be it. So, please have a go at this, ask me for any other pictures or other information if necessary and help me unravel this little mistery (well, for me it is). Thanks in advance!