Craspedida
| Craspedida Temporal range: | |
|---|---|
 | |
| phase contrast image of Monosiga brevicollis | |
Scientific classification  | |
| Domain: | Eukaryota |
| Clade: | Obazoa |
| Clade: | Opisthokonta |
| Clade: | Holozoa |
| Class: | Choanoflagellata |
| Order: | Craspedida Cavalier-Smith, 1997, emend. Nitsche et al. 2011 |
| Families | |
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 |
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References
- ↑ 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) 125924. doi:10.1016/j.protis.2022.125924. ISSN 1434-4610. PMID 36327744.
- ↑ 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 125798. doi:10.1016/j.ejop.2021.125798. ISSN 0932-4739. PMID 33984646.
- ↑ Dohrmann, Martin; Wörheide, Gert (2017-06-15). "Dating early animal evolution using phylogenomic data". Scientific Reports. 7 (1): 3599. Bibcode:2017NatSR...7.3599D. doi:10.1038/s41598-017-03791-w. ISSN 2045-2322. PMC 5472626. PMID 28620233.
- ↑ Leadbeater BS (2015). The choanoflagellates: evolution, biology, and ecology. University of Birmingham. ISBN 978-0-521-88444-0.
- 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
External links
Media related to Craspedida at Wikimedia Commons- 'Craspedida at the World Register of Marine Species (WoRMS)