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Microdoceras
birchi, Hyatt 1871
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Charmouth,
Dorset Coast.
Family EODEROCERATIDAE Spath 1929
Subfamily XIPHEROCERATINAE Spath,1925
Subfamily XIPHEROCERATINAE Spath,1925
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Charmouth,
Dorset Coast.
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Family EODEROCERATIDAE Spath 1929
Subfamily XIPHEROCERATINAE Spath,1925 |
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| Sub zone ammonite of the zone Caenisites turneri. | |
| Very evolute, almost sepenticone, with 2 persistent rows of lateral spines (tubercles on internal mould). Size 15cm across | |
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