Robertinida

Robertinida Temporal range: Middle Triassic–recent PreЄ Є O S D C P T J K Pg N
Scientific classification
(unranked):	SAR
(unranked):	Rhizaria
Superphylum:	Retaria
Phylum:	Foraminifera
Class:	Globothalamea
Order:	Robertinida Loeblich & Tappan, 1984
Superfamilies
Robertinacea Ceratobuliminacea Conorboidacea Duostominacea

The Robertinida are an order of Middle Triassic to recent, benthic foraminifera in which tests are planispirally to trochospirally coiled, with chambers provided with an internal partition and hyaline perforated walls composed of optically radiated aragonite.

References

Alfred R. Loeblich Jr and Helen Tappan,1988. Forminiferal Genera and their Classification. Foraminifera-GSI
Barun K. Sen Gupta 2002. Systematics of modern foraminifera.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.