Cretaceous sponges from the Campanian of Misburg and Höver
Homalodora Schrammen 1910
Homalodorina Reid 2004

Locality: Teutonia, Misburg
Width: 40 mm

Homalodora ficus

Schrammen, 1910

Homalodora ficus is a relatively small, fig-shaped megamorine sponge. It has several 1.5 to 2 mm wide pores on its rounded top. The pores are surrounded by radiating grooves.

Locality: Alemannia, Höver
Width: 100 mm
Locality: Alemannia, Höver
Width: 80 mm

Homalodora plana

Schrammen 1910

Homalodora plana occurs as planar bodies, commonly with a roughly triangular outline. This and the following specimen are typical examples of the kind, which is relatively common in the Lower Campanian.

Locality: Teutonia, Misburg
Width: 60 mm

The untypical specimen of Homalodora plana shown here is sitting on a fragment of another sponge. It has several strong roots.

Locality: Alemannia, Höver
Height: 70 mm

Another example of Homalodora plana, showing the typical numerous postica on the narrow top surface. Here, the top surface is inclined towards the front side, perhaps an adaptation to local currents.

Locality: Teutonia, Misburg
Width: 90 mm

Homalodora ramosa

Mantell 1822

Homalodora ramosa is a branching sponge, very similar to Brochodora, but smaller in its dimensions, i.e. the twigs do not exceed 15 mm in diameter. Homalodora ramosa is also distinguished by the occurrence of small, irregularly arranged pores on the twig surfaces, which are absent from Brochodora species. The ends of the twigs are truncated to rounded and display many millimeter-sized oscules.

Locality: Teutonia, Misburg
Height : 190 mm

Homalodora tuberosa

Schrammen 1910

Homalodora tuberosa is a claviform sponge with several knob-shaped, oscule-bearing processes at its top end .

Locality:   Alemannia, Höver
Height : 100 mm

A specimen of Homalodora tuberosa with more pronounced humps. Further development of the humps into branches leads to forms separeted as Brochodora roemeri.

Locality:   Alemannia, Höver
Width : 45 mm

This specimen of Homalodora tuberosa shows more truncated tops, which give it a mushroom or table shape.

Locality: Teutonia, Misburg
Height : 60 mm

A fig-shaped specimen of Homalodora tuberosa which could easily be confused with Homalodora ficus. However it has several (9) slight to distinct protrusions on which are groups of postica (see top left and right parts of specimen), with some faint radial furrows. Thus the canalization differs from that of Homalodora ficus.