Caenisites brooki
 
Caenisites brooki, Sowerby 1818
The Spittles, Black Ven, Charmouth, Dorset Coast.
 
Family ARIETITIDAE Hyatt 1874
 
A sub zone ammonite of the Caenisites turneri zone, Sinemurian Stage.
 
Involute, whorls high,elliptical, enlargeing rapidly, ribs strong.
Near actual size.
 
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