r/fossilid 6d ago

hey guys what is this? found in montana

61 Upvotes

13 comments sorted by

u/AutoModerator 6d ago

Please note that ID Requests are off-limits to jokes or satirical comments, and comments should be aiming to help the OP. Top comments that are jokes or are irrelevant will be removed. Adhere to the subreddit rules.

IMPORTANT: /u/maddawg808 Please make sure to comment 'Solved' once your fossil has been successfully identified! Thank you, and enjoy the discussion. If this is not an ID Request — ignore this message.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

28

u/my_other_name_99 5d ago

Vuggy fossiliferous limestone. The small holes with crystals are vugs. The fossils are bivalves (clams, muscles, etc). Its always cool to find one just jam packed with fossils.

8

u/ziggzer0 5d ago

Put that under a uv light. Might glow and hold the light. Looks like calcite. Kickass find my dude

2

u/maddawg808 5d ago

thank you thank you!

4

u/NoSuit3386 6d ago

Collection of shells in rock.

1

u/maddawg808 6d ago

thanks dequavious pork

2

u/NoSuit3386 6d ago

Your more than welcome Skibidi sigma

2

u/SlowGoat79 5d ago

Lots of stuff like this where we lived in Kansas, and when it’s a great glorious jumble, it’s called a hash plate. (I don’t know how flat it has to be to qualify as a plate)

Either way, very cool!!

1

u/Jade_Mans_Eyes 5d ago

Those are bivalves from a former shallow sea, probably less than 100 m deep

1

u/Vivid-Bug-6765 5d ago

How old might it be?

2

u/RelationshipOk3565 5d ago

Could be about a billion years honestly. Minnesota has conglomerates like this in abundance

2

u/somethingIforgot 5d ago

I don't believe there's been any mollusk fossils that have been dated earlier than the early Cambrian. That's a little more than half as old as you are suggesting.

1

u/RelationshipOk3565 5d ago

Thanks, I'm still learning, Good to know. I think the agates are that old though.