Biology:Planocarina

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Short description: Genus of testate amoebae

Planocarina
P. carinata
Scientific classification e
Domain: Eukaryota
Phylum: Amoebozoa
Class: Tubulinea
Order: Arcellinida
Family: Hyalospheniidae
Genus: Planocarina
Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016[1]
Type species
Planocarina carinata
(Archer 1867) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016[1]
Species
  • P. carinata
  • P. marginata
  • P. maxima
  • P. spumosa

Planocarina (from la planus 'flat', and carina 'keel') is a genus of arcellinid testate amoebae belonging to the family Hyalospheniidae.[2] It was created in 2016 to agglutinate a clade of species that were previously assigned to the paraphyletic genus Nebela. All species of Planocarina have a compressed keel surrounding the posterior part of their shell.[1] It is the sister group of Alabasta.[3]

Morphology

Members of Planocarina have an elongated, pyriform test with a distinct neck, and lateral margins tapering towards the test opening. The posterior part of the test is surrounded entirely by a flat keel. The test hyaline or slightly yellowish in color, composed of circular and elongated scales recycled from the organism's prey, such as euglyphid testate amoeba.[1]

Classification

Planocarina contains all former species of Nebela that have a flat keel, with the exception of those that have a lateral horn, which are assigned to Cornutheca. There are 4 species in total:[1]

  • Planocarina carinata (Archer 1867) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016 (=Nebela carinata (Archer 1867) Leidy 1879)
  • Planocarina marginata (Penard 1902) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016 (=Nebela marginata Penard 1902)
  • Planocarina maxima (Awerintzew 1907) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016 (=Nebela maxima Awerintzew 1907)
  • Planocarina spumosa (Awerintzew 1907) Kosakyan, Lahr, Mulot, Meisterfeld, Mitchell & Lara 2016 (=Nebela spumosa Awerintzew 1907)

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 "Phylogenetic reconstruction based on COI reshuffles the taxonomy of hyalosphenid shelled (testate) amoebae and reveals the convoluted evolution of shell plate shapes". Cladistics 32 (6): 606–623. 2016. doi:10.1111/cla.12167. PMID 34727671. 
  2. ↑ González-Miguéns, Rubén; Todorov, Milcho; Blandenier, Quentin; Duckert, Clément; Porfirio-Sousa, Alfredo L.; Ribeiro, Giulia M.; Ramos, Diana; Lahr, Daniel J.G. et al. (2022). "Deconstructing Difflugia: The tangled evolution of lobose testate amoebae shells (Amoebozoa: Arcellinida) illustrates the importance of convergent evolution in protist phylogeny". Molecular Phylogenetics and Evolution 175 (107557): 107557. doi:10.1016/j.ympev.2022.107557. ISSN 1055-7903. PMID 35777650. 
  3. ↑ "En garde! Redefinition of Nebela militaris (Arcellinida, Hyalospheniidae) and erection of Alabasta gen. nov.". Eur J Protistol 66: 156–165. 2018. doi:10.1016/j.ejop.2018.08.005. PMID 30366198. http://doc.rero.ch/record/323497/files/Duckert_C.-En_garde-20181136.pdf. 

Wikidata ☰ Q115485349 entry