Grewingkia is a genus of extinct Paleozoic corals, found in Indiana. It contains at least one species, Grewingkia canadensis.

References


Grewingkia Prehistoric Wiki Fandom

Grewingkia canadensis Members Gallery The Fossil Forum

Grewia flava PictureThis

Grevillea lanigera 'Celia' — Pflanzengroßhandel FlorAccess

Cincinnatian Fossils and Stratigraphy