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:
(unranked):
(unranked):
Phylum:
Subphylum:
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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


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