Noun
The female form of an ammonite (that has a larger shell than the male (the microconch).
- Examples
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Initially, the apophysis follows the coiling of the shell but it projects ventrolaterally during the final ontogenetic stage of macroconch development.
More examples (1)
A few collections of ammonoid eggs have even been found inside macroconchs, which is tempting to interpret as brooding behavior and further support for calling macroconchs female.