| Aspa, Bufonaria, Bursa scrobilator, Bursa rhodostoma, Bursa|
Aspa marginata is a species of sea snail, a marine gastropod mollusk in the family Bursidae, the frog shells.
Aspa marginata Wikipedia
Shells of Aspa marginata can reach a size of 20–40 millimetres (0.79–1.57 in). These shells are quite thick, beige in color, with a smooth surface, a deep siphonal canal and a short spire.
This marine species occurs in Western Africa, Senegal and Canary Islands.
This genus is known in the fossil records from the Pliocene to the Quaternary (age range: from 3.6 to 0.781 million years ago).
The fossilized shells have been valued by humans and Neanderthals.