
Help finding prehistoric plants with "mouths"
A few months back i watched a YouTube vid about early prehistoric plants and there was this one plant that was mentioned that apparently stumped scientist cuz they didnt know what the circle "mouths" was for, I dont remember it's name or if it was a aquatic or terrestrial plant but it had a stalk/trunk and at the top was a sphere with big open circles that went through it. If anyone thinks they know what plant it might be please do tell, I would love to read more about it
Poorly drawn example from memory