Porifera
Order

Tetralithistida Lagneau-Hérenger, 1962

https://files.geocollections.info/large/fc/4c/fc4c9919-2f85-429a-b2fb-589d09aeb945.jpghttps://files.geocollections.info/large/41/3c/413ca682-129f-4ba6-a20e-8d405abb162d.jpghttps://files.geocollections.info/large/66/18/66185e4f-55e3-4da9-9992-e56c120a45c5.jpghttps://files.geocollections.info/large/c4/35/c4351989-7fc9-4226-86c6-edaca10e7880.jpg
Selection of related publications
Asatkin, B. P. 1949. Type Porifera. Sponges. pp. 63–73. Gosudarstvennoe Izdatel'stvo Geologicheskoj Literatury.
Lamansky, V. V. 1905. Drevnejšie sloi silurijskih otloženij Rossii. Memoires du Comite Geologique 20, 1-147.
List of species