Petrosia?
From the collection of Yale Peabody Museum. Free to download, adapt and use — no permission needed.
Collection locality: offshore scarp opposite west groin, Cardiff Hall Beach, St. Ann Parish, Jamaica. Collected by Goreau, T. F.; Graham, E. A.; Dalzeel, R., 1961-07-23. IZ number 4955; lot count 1; Microslide 01, paraffin, serial section; Microslide 02, paraffin, serial section; Microslide 03, balsam, serial section; Microslide 04, balsam, serial section; Microslide 05, paraffin, serial section; Microslide 06, balsam, serial section; Microslide 07, paraffin, serial section; Microslide 08, paraffin, serial section; Microslide 09, paraffin, serial section; Microslide 10, balsam, serial section; Microslide 11, balsam, spicules; Microslide 12, balsam, section; other number JPM-343; accn=IZA.07577.
Yale Peabody Museum’s own description
