Cyrtonellida

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

Cyrtonellida
Temporal range: Cambrian–Devonian[1]
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
(unranked): Monoplacophora
Class: Tergomya
Order: †Cyrtonellida
Horny, 1963[2]

Subtaxa
Genera
  • Aremellia
  • Hamusella
  • Tetamocornu
  • Yangtzeconus
  • Yochelsonia

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


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