Hyperderoceras mamillatum (Simpson)

GROUP : Lower Jurassic Ammonite Species
STATUS : Holotype
NUMBER : WHITM:SIM183
HORIZON : Unknown
LOCALITY : Unknown
REFERENCES : Simpson 1843, p. 28
Simpson 1855, p. 67
Simpson 1884, p. 101
Howarth 1962, p. 108
Dr David Gelsthorpe Photograph - June 2004

 

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