PROFILPELAJAR.COM

Promachocrinus

Promachocrinus
Promachocrinus kerguelensis
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Echinodermata
Class: Crinoidea
Order: Comatulida
Family: Antedonidae
Genus: Promachocrinus
Carpenter, 1879[1]

Promachocrinus is a genus of free-swimming, stemless crinoids. It was a monotypic genus, with the only species in the genus being Promachocrinus kerguelensis, until the discovery of four new species, establishment of two others previously described and the transfer of another species to the genus in 2023.[2] Known for being coldwater crinoids, members of Promachocrinus are typically found in the seas around Antarctica and surrounding island groups, including under the sea ice.[3] Previously known for having 20 arms, two of the species now included in the genus have 10 arms. Many of the species are circum-Antarctic and can be difficult to tell apart without DNA sequencing.[4]

Species

There are eight accepted species of Promachocrinus as of August 2023:

References

  1. ^ Messing, Charles (2012). "Promachocrinus Carpenter, 1879". WoRMS. World Register of Marine Species. Retrieved 11 March 2019.
  2. ^ McLaughlin, Emily L.; Wilson, Nerida G.; Rouse, Greg W. (2023-07-14). "Resolving the taxonomy of the Antarctic feather star species complex Promachocrinus 'kerguelensis' (Echinodermata: Crinoidea)". Invertebrate Systematics. 37 (7): 498–527. doi:10.1071/IS22057. ISSN 1447-2600. S2CID 259910672.
  3. ^ Ballesta, Laurent (1 July 2017). "Deepest Dive Ever Under Antarctica Reveals a Shockingly Vibrant World". National Geographic Society. Archived from the original on June 22, 2017. Retrieved 11 March 2019.
  4. ^ McLaughlin, Emily L.; Wilson, Nerida G.; Rouse, Greg W. (2023-07-14). "Resolving the taxonomy of the Antarctic feather star species complex Promachocrinus 'kerguelensis' (Echinodermata: Crinoidea)". Invertebrate Systematics. 37 (7): 498–527. doi:10.1071/IS22057. ISSN 1447-2600. S2CID 259910672.

Content Disclaimer

Informasi ini disarikan dari Wikipedia dan disajikan kembali untuk tujuan edukasi. Konten tersedia di bawah lisensi CC BY-SA 3.0. Kami tidak bertanggung jawab atas ketidakakuratan data yang bersumber dari kontribusi publik tersebut.

  1. The information displayed on this website is sourced in part or in whole from Wikipedia and has been adapted for the purpose of restating it. We strive to provide accurate and relevant information, however:
  2. There is no guarantee of absolute accuracy. Wikipedia is an open, collaborative project that can be edited by anyone, so information is subject to change.
  3. It is not intended to constitute professional advice. The content displayed is for informational and educational purposes only. For important decisions (e.g., medical, legal, or financial), please consult a professional.
  4. Content copyright. Wikipedia is licensed under the Creative Commons Attribution-ShareAlike License (CC BY-SA). This means that content may be reused with appropriate attribution and shared under a similar license.
  5. Responsible use. Any risk arising from the use of information from this website is entirely the responsibility of the user.