Astrorhizida

Astrorhizida
Astrorhiza
Systematics
without rank: Diaphoreticks without rank: Sar without rank: Rhizaria without rank: Retaria without rank: Foraminifera (Foraminifera) Order : Astrorhizida
Scientific name
Astrorhizida
Brady , 1881

Astrorhizida is an order of shell-bearing, sea-dwelling unicellular organisms from the group of foraminifera .

features

All kinds of order form agglutinated housings, i.e. housings made of collected particles that are either anchored in a protein- or mineral-based matrix. The housings either consist of only one chamber, are tubular branched or rarely irregularly multi-chambered, then with incomplete partitions.

Systematics

The order was first described in 1881 by Henry Bowman Brady and recently comprises three superfamilies (family selection):

• Superfamily Astrorhizacea
  • Family Astrorhizidae
  • Bathysiphonidae family
  • Family Rhabdamminidae
  • Family Psammosphaeridae
  • Saccamminidae family
  • Family Hemisphaeramminidae
• Superfamily Komokiacea
  • Family Komokiidae
  • Baculellidae family
• Superfamily Hippocrepinacea
  • Family Hippocrepinidae
  • Family Notodendrodidae

Molecular genetic studies, however, contradict the independence of the order. The species contained form a common group with the Allogromiida .

proof

• Barun K. Sen Gupta: Systematics of modern Foraminifera , In: Barun K. Sen Gupta (Ed.): Modern Foraminifera . Springer Netherlands (Kluwer Academic), 2002, ISBN 978-1-4020-0598-5 , pp. 23 .

Individual evidence

1. ↑ Jérome Flakowski, Ignacio Bolivar, José Fahrni, Jan Pawlowski: Actin Phylogeny Of Foraminifera In: Journal of Foraminiferal Research, Volume 35, No. 2, pp. 93-102, 2005