Definition of fusulinid
: any of a family (Fusulinidae) of extinct marine foraminifers
Origin of fusulinid
New Latin Fusulinidae, from Fusulina, a genus, from Latin fusus spindle + -ulus -ule + New Latin -ina, diminutive suffix
First Known Use: 1941
Learn More about fusulinid
Britannica.com: Encyclopedia article about "fusulinid"
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