Foraminifera taxon details
From editor or global species database
Diagnosis Test discoidal to lenticular, numerous broad and low chambers increasing rapidly in breadth so that the spire increases rapidly in height, coiling planispiral and incompletely involute, leaving a depressed umbilicus; wall finely agglutinated, imperforate, simple in structure; apertural face high and truncate and may be slightly depressed centrally, aperture a small areal slit in the early stage as seen in thin section, becoming terminal in the expanded and nearly uncoiled later portion. L. Cretaceous (Albian); USA: Texas. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database
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