Sea Pen (Charnia masoni) An extinct and possibly one of the first described forms of complex life in the Ediacaran Period (Precambrian). Very interesting life form.
The well known trilobite, possibly the most famous arthropod of the early Cambrian. Surprised at how diverse trilobites were with many genera!
Spent a few hours in the Cambrian and Ordovician periods of the #Paleozoic era.
However, my obsession has been stalled in the late-Hadean eon, #Eoarchean and #Archean eras. π
#MuseumoftheEarth