Astylospongia

Translingual Proper noun 1 An extinct genus of prehistoric sponges that lived during the Silurian period, primarily found in North America and the Baltic region of Europe. en 1884 Authors of "The Annals & Magazine of Natural History" The Annals & Magazine of Natural History 271 Dr G.J. Hinde, in his Catalogue of the Fossil Sponges in the British Museum, which will form the foundation for all future spongiological work in England, has expressed some doubt as to the systematic position of the Astylospongidae. The doubts long since communicated to by Dr. Hinde by letter, have induced me to make a new examination of the skeleton of Astylospongia and Palæomanon, for which I was able to make use of a considerable number of thin sections of most of the known species.