Peronidella

Peronidella is an extinct genus of Calcareous sponges found in marine sedimentary rocks dated between the Devonian and the Cretaceous periods.

[2][1] These sponges had cylindrically shaped walls, with a typical diameter of 2 cm,[2] with a small platform at the top, showing the position of the Osculum.

Many species, such as Peronidella furcata, were colonial; however, several solitary species are known.

These sponges are relatively abundant in European chalks

This article about a calcareous sponge is a stub.

Peronidella from the Matmor Formation ( Callovian ) of southern Israel; osculum view.