palmula palmula palmula is an extinct genus of foraminifera which is known from a number of species found in rocks dating from near the beginning of the jurassic to the end of the cretaceous, in africa, asia, europe, and new zealand. a genus of polycotylid plesiosaur was named palmula in 2007, but because the name was already in use, the plesiosaur was renamed, becoming palmulasaurus. palmulatemporal range: jurassic – cretaceous scientific classification domain: eukaryota (unranked): sar (unranked): rhizaria superphylum: retaria phylum: foraminifera order: lagenina superfamily: nodosariacea family: vaginulinidae genus: palmulalea, 1833