Simpson 1855, p. 48
Simpson 1884, p. 78
Buckman 1913, pl. 76
Howarth 1962, p. 103.
Defossiceras defossus (Simpson)
| GROUP : | Lower Jurassic Ammonite Species |
| STATUS : | Holotype |
| NUMBER : | WHITM:SIM103 |
| HORIZON : | Unknown |
| LOCALITY : | Unknown |
| REFERENCES : | Simpson 1843, p. 15 Simpson 1855, p. 48 Simpson 1884, p. 78 Buckman 1913, pl. 76 Howarth 1962, p. 103. |
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