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Can anybody tell me what kind of dinosaur egg this is? I think its hadrosaurus, any idea how much is it? It has an embryo

Whole dinosaur eggs are highly sought-after fossils. The ones usually available to collectors are Hadrosaur eggs, Oviraptor eggs and Segnosaur eggs from China. This thread deals specifically with hadrosaur eggs. Hadrosaur eggs (Dendroolithus sp.) as we know from the market are in fact various dinosaur species, often hadrosaurid (many collectors/dealers lack the tools or discipline to examine eggshells under microscopes or have accredited museums examine them). Commercially available eggs vary greatly in price, anything from 150 USD to 1,500 USD depending on quality, size, hatched/unhatched and prep work. They usually range from 3.5 inches to 7 inches in diameter, and are mostly hatched types (which means the egg is in fact empty. If you prep out the bottom matrix, chances are it's hollow). However, hadrosaur eggs are also one of the most commonly faked, or mistaken fossils in the world. Anything from pieces of rock, pebbles, septarian nodules, concretions, or even chemically-etched objects are sold as eggs. There are several online right now. Here are examples of false hadrosaur eggs we often see in the market. Here are examples of partial/composite hadrosaur eggs (Note these ones are real to an extent. They can be a more economical choice as long as you know what you are getting).

I acquired this from a person that had owned it for some time who knew even less than I do about fossils. He got it at an estate sale from someone that did collect fossils several years ago. Due to the box having a label in it that said Allosaurus, he always assumed it was an egg from that animal. He had no idea what a theropod was, looking at the egg it remined me of some Hadrosaur eggs I had seen. It is too old to be part of the current crop of eggs coming from Asia. It was a nice fossil and I acquired it, Now, I would like a more knowledgeable option. It meauseres about 17x10 cm Thanks Robert

Every day I look through a collection of websites and online auctions for any good deals on dinosaur fossils. Occasionally a real steal of a deal is found, but when it comes to eggs most of what I see is fake. Counterfeit dinosaur eggs are continually found, mostly being sold by the same sellers from China and Malaysia. I personally fell for this trap last year and spent a lot of money on "eggs" that were man made. This is a topic that is brought up every few months on this thread to warn fellow collectors and I think its time again to repost what many others have posted before. There was a good short article that was written by Bill Merz and distributed at last year's Tucson Gem and Mineral Show in the EZ-Guide where he points out some of the most common examples of mass manufactured fake eggs.

Is this a real Hadrosaur Egg?

Hi everyone, I was recently on this website to ask about a couple eggs I bought and I found the input soo helpful! Thank you all for taking the time to help amateur collectors from getting doped:) I am looking at purchasing a second set of eggs, these ones hadrosaur. The seller has stated they are from Asia, China, Henan Province and were purchased prior to 2005. They admit that the matrix was broken and the two eggs believed to be from the same nest (based on the break line) put back together. they are from Provenance: ex-Donald B. Saxman collection, Tomball, Texas, USA. It also comes with a COA from a paleontologist in a Texas. any input on authenticity, amount of repair and if this is a good piece to have it my collection would be greatly appreciated. unfortunately these are the only photos I have

I saw a clutch of eggs today in a local flea market and took a look at it and saw quite an interesting texture on it. I have seen pictures and handled a few Hadrosaur eggs before, and I am not familiar with this kind of texture and feel and so I took a few photos to share to ask some egg experts here if this is common for a Hadrosaur Egg to look like this? Or is the specimen possibly a fake? Here are the pictures of the specimen:

Hi all, I have here what I am sincerely hoping to be an unhatched Hadrosaur Egg. Could anyone offer me any advise on how I can begin to clean and expose it better? I would especially like to prep out its back better, I see faint traces of what I am hoping to be egg shells there. I have no proper fossil-prepping tools, just different toothbrushes, sponge, chisels and hammers. Also, what would be a good fossil preservative to use on this?