˖̭͜ꉓ˖̭͜˖̭͜˖̭͜ꇺⵂ⁝࿐˙˖̭͜˙˙˙

Halkeria Evangelista

“The halkieriids are a group of fossil organisms from the Lower to Middle Cambrian. They have been found on almost every continent in Lower to Mid Cambrian deposits, forming a large component of the small shelly fossil assemblages.The animal looked like slugs in chain mail - 1.5 centimetres to 8 centimetres long, bilaterally symmetric, flattened from top to bottom and unarmored on the bottom. Very near each end there is a shell plate with prominent growth lines rather like the growth rings of trees. The rest of the upper surface was covered with about 2,000 sclerites that overlapped each other like tiles and formed three zones with sclerites of different shapes. The shellplates were probably made of calcium carbonate, and made detailed fossilization possible.”