Order

Chaetetida Okulitch, 1936

Hetetiidid

Taxon overview

Order ?CHAETETIDA, Ordovician- Eocene. Colonies ceroid, phaceloid with closely spaced corallites. Corallites are very slender. Pores present in rare occasions as in one Carboniferous family. Septal spinules are present in one Cretaceous genus and otherwise are absent. Increase is bipartite, complete or incomplete or also offsets rise intramurally sometimes. Representatives of ?Desmidoporidae and ?Tiverinidae are found in Baltoscandia (Nodulipora, Barrandeolites bowerbanki). The taxonomy is not revised. Chaetetid and coralline sponge relationships are unclear. Sponges Solenoporaceae have no fibrous wall structures as trabeculae or spherulites.

Selection of related publications

Mõtus, M.-A., Hints, O. (eds) 2007. 10th International Symposium on Fossil Cnidaria and Porifera. Excursion B2: Lower Paleozoic geology and corals of Estonia. Excursion Guidebook. pp. 1-64. Institute of Geology at Tallinn University of Technology.

Klaamann, E. R. 1986. The tabulate communities and biozones of the East Baltic Silurian. Theory and practice of ecostratigraphy, pp. 80-98. Valgus.

Klaamann, E. 1983. The Tabulate corals of Jaani and Jaagarahu Stages (Wenlockian, Estonia) and their Biozones. Lower Paleozoic paleontology of Baltics and Podolia, pp. 3-40. Eesti NSV Teaduste Akadeemia Geoloogia Instituut.

Stel, J. H., Oekentorp, K. 1980. Desmidopora and Nodulipora: misfits in the coral world. Acta Palaeontologica Polonica 25, 3-4, 403-417.

Klaamann, E. 1979. Tabulate and heliolitid corals. Sveriges Geologiska Undersökning 73, 3, 81-85.

Klaamann, E. R. 1966. The incommunicate tabulata of Estonia. ENSV TA Geoloogia Instituudi Uurimused 1-97. Eesti NSV TA Geoloogia Instituut.

Lindström, G. 1896. Beschreibung einiger obersilurischer Korallen aus der Insel Gotland. Bihang till Kongliga Vetenskaps-Akademiens Handlingar 21, 7, 1-50. Norstedt & Söner.

Dybowski, W. 1873. Monographie der Zoantharia sclerodermata rugosa aus der Silurformation Estlands, Nord-Livlands und der Insel Gotland, nebst einer Synopsis aller palaezoischen Gattungen dieser Abtheilung und einer Synonymik der dazu gehörigen, bereits bekannten Arten. pp. 1-160. Heinrich Laakmann.

List of species

1. Barrandeolites bowerbanki (Milne-Edwards et Haime, 1851) | Jaagarahu Stage

2. Barrandeolites lichenarioides (Sokolov, 1952) | Jaani Stage→Jaagarahu Stage

3. Chaetetes hemisphaericus (Eichwald, 1829) | Haljala Stage

4. Chaetetes pyriformis (Eichwald, 1829) | Volkhov Stage→Kunda Stage

5. Cryptolichenaria multiplex Klaamann, 1966 | Pirgu Stage

6. Desmidopora alveolaris Nicholson, 1886 | Wenlock

7. Nodulipora acuminata Lindström, 1873 | Wenlock

8. Porkunites amalloides (Dybowski, 1873) | Porkuni Stage

Classification

Organism group	Biota
Kingdom	Animalia
Phylum	Porifera
Class	Demospongea
Subclass	Ceractinomorpha
	Tetractinomorpha
Order	Chaetetida
Family	Chaetetidae
	Cryptolichenariidae
	Desmidoporidae
	Tiverinidae
Order	Lithistida
	Orchocladina
	Protomonaxonida
	Spirosclerophorida
	Tetralithistida
Genus	Solenopora