NecrocarcinidaeNecrocarcinidae is an extinct family of Late Jurassic and Cretaceous crabs. It comprises 40 species grouped in seven genera.GeneraGenera within this family include:Corazzatocarcinus Larghi, 2004Cristella Collins and Rasmussen 1992Necrocarcinus Bell, 1863Paranecrocarcinus Van Straelen, 1936Polycnemidium Reuss, 1859Pseudonecrocarcinus Förster, 1968Shazella Collins & Williams, 2004