Definition of Retrocostatum. Meaning of Retrocostatum. Synonyms of Retrocostatum

Here you will find one or more explanations in English for the word Retrocostatum. Also in the bottom left of the page several parts of wikipedia pages related to the word Retrocostatum and, of course, Retrocostatum synonyms and on the right images related to the word Retrocostatum.

Definition of Retrocostatum

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Meaning of Retrocostatum from wikipedia

- ammonite biozones: zone of Clydoniceras discus zone of Hecticoceras retrocostatum zone of Cadomites bremeri zone of Morrisiceras morrisi zone of Tulites...
- Formation further south in Oxfordshire. This would place it in the Retrocostatum Biozone and it is inferred to belong to what are known as the 'Diginoides...