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Semmy Nou posted a new specimen in the group What is it? from the myFOSSIL app 4 years, 11 months ago
4 years, 11 months ago4 years, 11 months agoSemmy Nou has contributed a new specimen to myFOSSIL!
Semmy Nou posted a new specimen in the group What is it? from the myFOSSIL app 4 years, 11 months ago
Semmy Nou has contributed a new specimen to myFOSSIL!
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@semmy-nou Traditionally this has been classified as Orthoceras, however, a paper by Gnoli 2003 shows that there is high diversity in these sorts of straight cephalopods (squid-like creatures). I also read something that is restricting Orthoceras to the middle Ordovicean and cephalopods in other times have other names. This black limestone is…[Read more]
In short, while listed as Orthoceras by many dealers, it may be something else like Arionoceras or Michelinoceras.
@mackenzie-smith I think these are from the Baltic area. I think, if I remember correctly, true Orthoceras are only from this area in the Middle Ordovician. I’m not sure I’ve seen Moroccan black limestone but it could certainly exist.
I agree with at least a cephalopod ID. @Semmy-nou, would you like to update the taxonomy?
It might be an trilobite
This is not from California, it is from Morocco – very common item for sale (PS it is not a trilobite)
I have one very similar given as a gift. From Morocco, Orthoceras is what it is billed as.