Fissurilla Nasula
Facsimile
Transcription
Status: Complete
Fissurilla nasula, Conrad, Medial Ter. Foss. p. 78. pl. 44 fig. 6
Subovate, not elevated; sides flattened, cancellated with numerous closely arranged unequal ribs & prominent transverse striae; foramen subovate, rather large; inner margin crenelated L. 1.3 H 0.5
Medial Tertiary
St. Marys River Md.
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