rotaline
/ˈrəʊtəlʌɪn/Zoology and Palaeontology
adjective
Of, relating to, or characteristic of the foraminiferan genus Rotalia or a larger group to which it belongs; rotalid, rotaliform.
noun
A rotaline foraminiferan.
Origin
Mid 19th century; earliest use found in The Zoologist: a miscellany of natural history. From scientific Latin Rotalia + -ine.