Biology:Craspedida

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Craspedida is an order of choanoflagellate, with members with an exclusively organic covering. Crown group craspedids (and perhaps crown group choanoflagellates if Acanthoecida arose within Craspedida[1]) appeared 422.78 million years ago.[2] Although a previous study from 2017 recovered the divergence of the crown group choanoflagellates (craspedids) at 786.62 million years.[3]

Subgroups

  • Codonosigidae
    • Codosiga
    • Desmarella
    • Kentrosiga
    • Monosiga
    • Proterospongia
    • Sphaeroeca
    • Stylochromonas
  • Salpingoecidae
    • Astrosiga
    • Aulomonas
    • Choanoeca
    • Cladospongia
    • Codonosigopsis
    • Diplosiga
    • Hartaetosiga
    • Mylnosiga
    • Lagenoeca
    • Microstomoeca
    • Paramonosiga
    • Salpingoeca
    • Stagondoeca

Cladogram

The following cladogram is based on the 2014 study by Leadbeater.[4]

Choanoflagellata
 

Acanthoecida

 
Craspedida
Codonosigidae
Codonosiga
 

Codonosiga botrytis 50px

 
 

Codonosiga elegans

 
 
 

Desmarella

 
 

Kentrosiga

 
 

Monosiga 70px

 
 

Proterospongia

 
 

Sphaeroeca

 
 

Stylochromonas

 
 
Salpingoecidae
 

Astrosiga

 
 

Aulomonas

 
 

Choanoeca

 
 

Cladospongia

 
 

Codonosigopsis

 
 

Diplosiga

 
 

Hartaetosiga

 
 

Mylnosiga

 
 

Lagenoeca

 
 

Microstomoeca

 
 

Paramonosiga

 
 

Salpingoeca 70px

 
 

Stagondoeca

 
 
 
 

References

  1. ↑ Carr, Martin; Leadbeater, Barry S. C. (2022-12-01). "Re-evaluating Loricate Choanoflagellate Phylogenetics: Molecular Evidence Points to the Paraphyly of Tectiform Species". Protist 173 (6). doi:10.1016/j.protis.2022.125924. ISSN 1434-4610. PMID 36327744. 
  2. ↑ Schiwitza, Sabine; Gutsche, Lennart; Freches, Eric; Arndt, Hartmut; Nitsche, Frank (2021-06-01). "Extended divergence estimates and species descriptions of new craspedid choanoflagellates from the Atacama Desert, Northern Chile". European Journal of Protistology 79. doi:10.1016/j.ejop.2021.125798. ISSN 0932-4739. PMID 33984646. https://www.sciencedirect.com/science/article/abs/pii/S093247392100033X. 
  3. ↑ Dohrmann, Martin; Wörheide, Gert (2017-06-15). "Dating early animal evolution using phylogenomic data" (in en). Scientific Reports 7 (1): 3599. doi:10.1038/s41598-017-03791-w. ISSN 2045-2322. PMID 28620233. Bibcode: 2017NatSR...7.3599D. 
  4. ↑ Leadbeater, Barry S. C. (2015). The choanoflagellates: evolution, biology, and ecology. University of Birmingham. ISBN 978-0-521-88444-0. http://www.cambridge.org/us/academic/subjects/life-sciences/ecology-and-conservation/choanoflagellates-evolution-biology-and-ecology?format=AR. 
  • Extended phylogeny of the Craspedida (Choanomonada). Alexandra Jeuck, Hartmut Arndt and Frank Nitsche, European Journal of Protistology, Volume 50, Issue 4, August 2014, Pages 430–443, doi:10.1016/j.ejop.2014.06.001
  • 'Craspedida at the World Register of Marine Species (WoRMS)

Wikidata ☰ Q23753092 entry