Secondary spiral umbilical canal
- according to Hottinger (2006):
SECONDARY SPIRAL UMBILICAL CANAL - tubular to flattened space comprized between cover plates and the lateral wall of the adjoining previous coil.
Hottinger (2006), Illustrated glossary of terms used in foraminiferal research. Carnets de Géologie, Memoir 2, ISSN 1634-0744.
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