Mawsonites spriggi Jellyfish? Fossil

 

This picture is of a Mawsonites spriggi (Glaessner & Wade, 1966) jellyfish? fossil cast. It was found in south Australia. It dates to the late Neoproterozoic Era.

The picture was taken in June 2023 on the first floor of the Smithsonian Museum of Natural History in Washington D.C. USA.

 

Dactyloidites asteroides Fossil

 

While researching a mystery fossil that looks like flower petal indentations, I came across jellyfish imprints described as medusa. The image above is of a Cambrian aged Dactyloidites asteroides (Fitch, 1850). Image is from Charles D. Walcott (1850-1927) and was re-published as figure 1012 on page 228 A Textbook of Geology Part II Historical Geology by Amadeus W. Grabau (1870-1946).

PDF of book can be found:

https://archive.org/details/textbookofgeolog02grabrich/page/n5/mode/2up

Mawsonites spriggi (Jellyfish fossil?)

Fossil cast of Mawsonites spriggi thought to be a jellyfish imprint.  Found in South Australia and creature existed in the Late Neoproterozoic.  Fossil on display at Smithsonian Museum of Natural History on August 2010.

Learn more about it at Wikipedia.