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Alex Gu

Is it fossil or just a rock?

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Alex Gu

Yesterday I bought a fossil box from the local natural history museum, just for the sea urchin inside. And there is a mysterious thing inside that looks like fossil but I've never seen something like this. Maybe it's just a weird looking rock? 

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Plantguy

Thats a sea urchin spine...could belong to the sea urchin you have or be from another type..pretty cool!

 

What's the sea urchin look like? Did they give you any other info like its name/genus/species, its age and perhaps a location that it came from? 

 

Regards, Chris 

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Alex Gu

Unfortunatly there are no tags or any information inside the box. But these fossils are definitely not come from China. All things in the box are two sea urchins (Pic 1, a Cidaroida sp. I think) , another sea urchin I've just cleaned by HCl (Pic 2), a Pleurotomaria sp.(Pic 3), a Nassariidae sp. (Pic 4), some Turritella sp. (Pic 5),  some morocco shark teeth(Pic 6), a Orthoceras sp.(Pic 7),and a Crinoidea sp. (Pic 8)

海胆未定种 Echinoidea sp.(1).jpg

头帕海胆 Cidaroida sp.(1).jpg

侧凹螺未定种 Pleurotomaria sp. (3).jpg

织纹螺未定种 Nassariidae sp. (1).jpg

锥螺属未定种 Turritella sp. (1).jpg

未定种鲨鱼牙齿 Selachii sp (1).jpg

直角石未定种 Orthoceras sp.(1).jpg

未定种海百合茎 Crinoidea sp.(1).jpg

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Alex Gu

Ooops,Pic 2 is the Cidaroida sp. and Pic 1 is the sea urchin I cleaned by HCl

 

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hemipristis
1 minute ago, Alex Gu said:

Ooops,Pic 2 is the Cidaroida sp. and Pic 1 is the sea urchin I cleaned by HCl

 

The spine looks like one from a Cidarid, though I"m not an echinoid expert

cidaris.jpg

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