Cornuspiroidea
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'''Cornuspiroidea''' are globular, marine invertebrates belonging to the superfamily [[Foraminifera|foraminiferan]]. The shell may be free or attached, planispiral or trochospiral, evolute or involute, spreading or discoidal{{Cite web |title=The Neogene forams |url=http://www.sepmstrata.org/page.aspx?pageid=732 |access-date=2026-04-23 |website=www.sepmstrata.org}}. The proloculus, or initial chamber, is followed by undivided spiral passage or enrolled tubular chamber, later may be irregularly coiled, unicoiled, or show zigzag growth pattern and may be distinctly chambered. The shell wall is composed of imperforate porcelaneous calcite{{Cite journal |last=Vachard |first=Daniel |last2=Le Coze |first2=François |
'''Cornuspiroidea''' are globular, marine invertebrates belonging to the superfamily [[Foraminifera|foraminiferan]]. The shell may be free or attached, planispiral or trochospiral, evolute or involute, spreading or discoidal{{Cite web |title=The Neogene forams |url=http://www.sepmstrata.org/page.aspx?pageid=732 |access-date=2026-04-23 |website=www.sepmstrata.org}}. The proloculus, or initial chamber, is followed by undivided spiral passage or enrolled tubular chamber, later may be irregularly coiled, unicoiled, or show zigzag growth pattern and may be distinctly chambered. The shell wall is composed of imperforate porcelaneous calcite{{Cite journal |last=Vachard |first=Daniel |last2=Le Coze |first2=François |title=Carboniferous smaller Foraminifera: convergences and divergences |url=https://www.lyellcollection.org/doi/abs/10.1144/SP512-2020-42 |journal=Geological Society, London, Special Publications |volume=512 |issue=1 |pages=247–326 |doi=10.1144/SP512-2020-42 |access-date=2026-04-23}}, a character of the [[Miliolida]] |
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Families and genera in the Cornuspiroidea were removed from the [[Milioloidea]] where they appear in the [[Treatise on Invertebrate Paleontology|Treatise Part C]] (Loeblich & Tappan 1964). |
Families and genera in the Cornuspiroidea were removed from the [[Milioloidea]] where they appear in the [[Treatise on Invertebrate Paleontology|Treatise Part C]] (Loeblich & Tappan 1964). |
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