CREATE TABLE table_40609 ("Name" TEXT, "Novelty" TEXT, "Status" TEXT, "Authors" TEXT, "Location" TEXT)

What is Authors, when Novelty is Gen Nov, when Location is South Africa, and when Name is Criocephalosaurus?
SELECT "Authors" FROM table_40609 WHERE "Novelty" = 'gen nov' AND "Location" = 'south africa' AND "Name" = 'criocephalosaurus'
SELECT "Authors" FROM "table_40609" WHERE "Location" = 'south africa' AND "Name" = 'criocephalosaurus' AND "Novelty" = 'gen nov'