Cretaceous sponges from the Campanian of Misburg and Höver
Jerea Lamouroux 1821

Locality: Teutonia, Misburg
Height: 200 mm

Jerea quenstedti ?

Zittel 1878

Jerea quenstedti is a rare species at Misburg.

The two specimens shown are probably Jerea quenstedti, having a typical fig-shaped main body, a stout stem, and several deep grooves radiating away from the top center. The surface is furnished with numerous irregularly distributed ostia of variable size. The paragaster area is not well preserved in either of the specimens, and the cortex (if once present) has been lost.

The specimen in the first picture is broken in two parts. Stem and top section have been rotated to show best preserved sides.

Locality. Teutonia, Misburg
Width: 90 mm

A second sample of Jerea quenstedti, showing ostia and grooves.

After Schrammen, 1910

The main skeleton consists of large, smooth tetraclones. The dermal scleres are dichotriaenes.

The picture shows
(a) tetraclones,
(b) dichotriaenes, and
(c) irregular siliceous bodies of the cortex.
(after Schrammen, 1910)