 Cnidarians also have "type 1" paracaspases.The "type 1" paracaspases are characterized by a MALT1-like domain composition with a death domain, immunoglobulin-like domains and a caspase-like domain.The "type 1" paracaspases first originated sometime before the last common ancestor of the bilaterans and cnidaria, indicating that "type 1" paracaspases originated during the ediacaran period.