Quadrisemicoscinium

Quadrisemicoscinium Temporal range: Emsian–Eifelian [1] PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Bryozoa
Class:	Stenolaemata
Order:	† Fenestrata
Family:	† Semicosciniidae
Genus:	† Quadrisemicoscinium Plamenskaya, 1991

Quadrisemicoscinium is an extinct genus of fenestrate bryozoan, known from the Early Devonian period, of the family Semicosciniidae. It formed net-like colonies of relatively thick branches with two rows of autozooids per branch, supported by a vesicular skeleton. ^{[2] [3]}

Species

Three species are recognized. ^[4]

• †Quadrisemicoscinium alticarinatum (Troitzkaia, 1968)
• †Quadrisemicoscinium fungiforme Plamenskaya, 1991
• †Quadrisemicoscinium intermedium (Nekhoroshev, 1926)

References

1. "Quadrisemicoscinium". Palaeobiology Database.
2. Ernst, Andrej; Dorsch, Tobias; Keller, Martin (2011). "A bryozoan fauna from the Santa Lucia Formation (Lower–Middle Devonian) of Cantabrian Mountains, NW Spain". Facies. 57 (2): 301–329. Bibcode:2011Faci...57..301E. doi:10.1007/s10347-010-0238-9. S2CID   129231518.
3. Ernst, Andrej (2012). "Diversity dynamics and evolutionary patterns of Devonian Bryozoa". Palaeobiodiversity and Palaeoenvironments. 93.
4. Bock, P. (2022). "World List of Bryozoa. Quadrisemicoscinium Plamenskaya, 1991 †". WoRMS. World Register of Marine Species . Retrieved 2 March 2022.