Cyrtonellida

Extinct order of molluscs

Cyrtonellida Temporal range: Cambrian–Devonian^[1] PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Monoplacophora
Subclass:	Tergomya
Order:	†Cyrtonellida Horny, 1963^[2]

Cyrtonellida is a group of "monoplacophora", representing either a sister taxon to, or a polyphyletic assemblage including, the Trybliida.

Subtaxa

Carcassonnellidae
Cyrtolitidae
Cyrtonelloidea
Pollicinidae

Genera

Aremellia
Hamusella
Tetamocornu
Yangtzeconus
Yochelsonia

References

^ Eric W. Holman (Autumn 1989). "Some Evolutionary Correlates of Higher Taxa". Paleobiology. 15 (4): 357–363. doi:10.1017/s0094837300009556. JSTOR 2400759.
^ R. J. Horný. 1963. On the systematic position of cyrtonelloids (Mollusca). Časopis Národni Muzea - Oddíl přírodovĕdny 132(2):90-94

External links

"Cyrtonellida". Fossilworks. Gateway to the Paleobiology Database.

v
t
e

frontpage hit counter