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Mr. Fossil posted a new specimen in the group What is it? from the myFOSSIL app 3 years, 1 month ago
3 years, 1 month ago3 years, 1 month agoMr. Fossil has contributed specimen mFeM 97664 to myFOSSIL!
Mr. Fossil posted a new specimen in the group What is it? from the myFOSSIL app 3 years, 1 month ago
Mr. Fossil has contributed specimen mFeM 97664 to myFOSSIL!
Looks like gastropod shells
@a-trilobite , look another pick
yup, gastropods
I say ammonites, but you don’t listen to me…
@leonardo-miranda
Ok, please guys can you told me how to know if this I found is an ammonite or anything not?
Ammonites are divided into chambers in the shell, unlike snail shells like yours which are hollow
I have some specimens , but I must clean up them..
Thanks @a-trilobite
@mr-fossil we just told you they’re gastropods and not ammonites, what do you mean?
They are not hollow
@leonardo-miranda
these are gastropods, aka snails, which can be distinguished from ammonites because they lack chamber separations in their shell and are completely hollow.
Ammonites notice the chambers: https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2Fassets0.fossilera.com%2Fsp%2F171273%2Fsplit-ammonites%2Fvarious.jpg&f=1&nofb=1
Sometimes you can’t see the inside of the shell without destroying it. If the you look at the outline of the shell, there will be ribs then it is an ammonite. The ribs encase the chambers that everyone is talking about. Ammonites have these ribs because it increases the integrity for the shell and allows them to live deeper in the ocean where there is more pressure. When you look at these fossils you can see they are smooth swirls. No ribs/chambers. Gastropods can be fresh or salt water and modern ones even live on land so if you have other indications of being a fresh water environment then you can also rule out ammonites.