Urechinina is an infraorder of echinoderms. There are 63 species of Urechinina, in 23 genera and 6 families. It includes groups like Calymnidae, Plexechinidae, and Carnarechinidae. Dead Urechinina form shallow marine sediments. They are bioturbators. They have sexual reproduction.
EOL has data for 9 attributes, including: