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  • Ammodata is a (growing) open-source morphological data repository for ammonoid paleontologists.

    Download shell dimensions and coiling parameters here. (Basic taxonomic information is also available through this dataset.)

    Download the fractal dimension dataset here.

    Coming soon: septal proportions dataset.

    Download fractal data in an ontogenetic sequence here.

    Download aptychal dimensions here.

    I plan to continue adding to these datasets, as well as create new ones.

    If you would like to join the Ammodata project and help us make data available to all ammonite workers, please send an email to