1) Burgess Shale animal
Found on
https://www.crosswordclues.com/clue/microdictyon
Microdictyon is an extinct `armored worm` coated with dot-like Maotianshan shale of Yunnan China. Microdictyon is sometimes included in a somewhat ill-defined Phylum – Lobopodia – that includes several other odd worm-like and segmented free-swimming animals that do not appear to be arthropods or worms. The phylum includes Microdictyon, Onych.....
Found on
http://en.wikipedia.org/wiki/Microdictyon
No exact match found.
