BicosoecidaHonigberg et al., 1964, Zhukov, 1978, Karpov, 1998, 2000
Bicosoecida (ICZN) orBicosoecales/Bicoecea (ICBN) is an order ofBikosea, a small group of unicellularflagellates, included among thestramenopiles. Informally known asbicosoecids, they are free-living cells, with nochloroplasts, and in some genera are encased in alorica.
The name of thetype genusBicosoeca described byJames-Clark in 1866 is derived from Greek roots (bikos, vase, bowl, plusoekein, inhabit). The philologically preferable compound would beBicoeca, as "corrected" byStein in 1878 and followed by most subsequent authors. However, according to theICBN andICZN, the original spelling of the name cannot be considered incorrect and it must be used in its original form.
The group was formerly considered to be related to theChrysophyceae.[7]
Some authors use the vernacular term "bicosoecid" (or "bicoecid") in a narrower sense, only forBicosoeca, applying "bicoeceans" toBicosoeca and related groups likeCafeteria.[8]
With the advent of using molecular phylogenies to resolve relationships of manyeukaryotes the original circumscription ofbicosoecids has been greatly expanded upon to include other orders and the rank has changed from an order to a class.[9]
^Grassé, P.-P. Contribution à l'étude des flagellés parasites. Archives de zoologie expérimentale et générale, t. 65, 1926, pages 345-602
^Ultrastructure and 18S rRNA gene sequence of a small heterotrophic flagellate Siluania monomastiga gen. et sp. nov. (Bicosoecida). S. A. Karpov, R. Kersanach, D. M. Williams - European Journal of Protistology, 1998
^Grassé, P.-P. Contribution à l'étude des flagellés parasites.Archives de zoologie expérimentale et générale, t. 65, 1926, pp. 345–602 [576], disponible atGallica.
^Grassé, P.-P. & Deflandre, G . (1952). Ordre des Bicoecidea. In:Grassé, P.-P. (Ed.).Traité de Zoologie. Vol. 1, fasc. 1. Phylogénie. Protozoaries: Generalités, Flagellés. Masson et Cie, Paris. 599-601.
^Loeblich III, Alfred R. & Loeblich, Laurel Ann. 1979. Division Chrysophyta, pp. 411–423. In:CRC Handbook of Microbiology, 2nd ed., vol. 2, Fungi, Algae, Protozoa, and Viruses, ed. by A. I.Laskin and H. A. Lechevalier, CRC Press, Inc., West Palm Beach, FL.
^Hibberd, David J. (1978). "Bicosoeca accreta sp. nov., a flagellate accumulating extraneous silica fragments".British Phycological Journal.13 (2):161–166.doi:10.1080/00071617800650201.
^Cavalier-Smith, T; Scoble, J. M. (2013). "Phylogeny of Heterokonta: Incisomonas marina, a uniciliate gliding opalozoan related to Solenicola (Nanomonadea), and evidence that Actinophryida evolved from raphidophytes".European Journal of Protistology.49 (3):328–353.doi:10.1016/j.ejop.2012.09.002.PMID23219323.
Hibberd, D. J. (1986). Ultrastructure of the Chrysophyceae. Colorless forms.p. 29-30 In:Chrysophytes: Aspects and Problems. Kristiansen, J. and R.A. Andersen [Eds.]. Cambridge University Press, Cambridge.