# 石炭紀 carboniferousperiod octomedusa anthracomedusa

Essexella

A surprisingly common extinct jellyfish, while its family is known for almost never fossilizing, essexcella represents 42% of all fossils found in Mazon Creek

ALT: also known by the nickname blob, due to how common its fossils are people tend to leave them

4 27
2021-08-06

実在した石炭紀のクラゲ３種です。こうやって見ると今も昔もクラゲって宇宙生物っぽいですね〜。#石炭紀

5 25
2021-01-31