Porifera

Siphoniidae d’Orbigny, 1851

Selection of related publications
Asatkin, B. P. 1949. Type Porifera. Sponges.
Lamansky, V. V. 1905. Drevnejšie sloi silurijskih otloženij Rossii. Memoires du Comite Geologique 20, 1-147.