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Sea urchin Holectypus?

PMA

By PMA
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PMA Member

PMA

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This was also found near Herznach in Switzerland and according to my lexicon, it could be a Jurassic Holectypus, am I correct?

 

Greetings!

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IMG_20190307_132847.jpg

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Tidgy's Dad Regular Member

Tidgy's Dad

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It's a good fit, could be. 

But it's difficult, i'm trying to id a Jurassic echinoid at the moment myself, but mines a cidaroid, there are so many that look similar, and often the details of the lantern and so on are not preserved well enough to make ids very easy. 

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Tortoise Friend.

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Manticocerasman Regular Member

Manticocerasman

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it looks like it, the holes on the bottem have the typical "keyhole" shape

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growing old is mandatory but growing up is optional.

 

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Uncle Siphuncle Regular Member

Uncle Siphuncle

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In Europe, also compare with Discoides.

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Grüße,

Daniel A. Wöhr aus Südtexas

"To the motivated go the spoils."

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PMA Member

PMA

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On 7.3.2019 at 7:52 PM, Uncle Siphuncle said:

In Europe, also compare with Discoides.

But discoides is only cretaceous, right?

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Uncle Siphuncle Regular Member

Uncle Siphuncle

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5 hours ago, PMA said:

But discoides is only cretaceous, right?

I believe you are correct.

Grüße,

Daniel A. Wöhr aus Südtexas

"To the motivated go the spoils."

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