Miliolida

The Miliolida are an order of foraminifera with calcareous, porcelacous tests that are imperforate and commonly have a pseudochitinous lining.[2] Tests are composed of randomly oriented calcite needles that have a high proportion of magnesium along with organic material. Tests lack pores and generally have multiple chambers.

Miliolida
Temporal range: Carboniferous - Recent
Quinqueloculina sp. from Donegal Bay, Ireland.
Scientific classification
Domain:
Eukaryota
(unranked):
SAR
(unranked):
Rhizaria
Phylum:
Retaria
Subphylum:
Foraminifera
Class:
Tubothalamea
Order:
Miliolida
Superfamilies
  • Alveolinoidea Ehrenberg, 1839
  • Cornuspiroidea Schultze, 1854 nom. transl. Bogdanovich in Subbotina et al., 1981
  • Milioloidea Ehrenberg, 1839
  • Nubecularioidea
  • Soritoidea Ehrenberg, 1839
  • Squamulinoidea Reuss & Fritsch, 1861[1]

Miliolids, which range from the Carboniferous to recent, are benthic Foraminifera abundant in shallow waters such as in estuaries and along coastlines, though they also include deepwater oceanic forms.[3]

The order Miliolida, sometimes referred to as a suborder, the Miliolina, is divided on the basis of differences in test morphology into five recognized superfamilies.

References
  1. "Miliolina". WoRMS. World Register of Marine Species. Retrieved 2018-12-04.
  2. Loeblich, Alfred R.; Tappan, Helen (1964). Moore, R.C. (ed.). Protista 2: Sarcodina Chiefly "Thecamoebians" and Foraminiferida. Treatise on Invertebrate Paleontology. C (5th ed.). Geological Society of America. pp. 436–510a. ISBN 978-0-8137-3003-5.
  3. Omaña, L.; Alencaster, G.; Buitrón, B.E. (2016). "Mid-early late Albian foraminiferal assemblage from the El Abra Formation in the El Madroño locality, eastern Valles–San Luis Potosí Platform, Mexico: Paleoenvironmental and paleobiogeographical significance" (PDF). Boletín de la Sociedad Geológica Mexicana. 68 (3): 477–492. doi:10.18268/BSGM2016v68n3a6.


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