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Ontogenetic Collections

This page lists ontogenetic (growth) series of fossils for a number of different species. Each collection begins with a juvenile specimen and finishes with an adult form while including a couple of intermediate growth stages. Useful for study and reference.


Pricing note: Each of these collections is priced with shipping added as a separate charge. If you purchase several groups and pay shipping on each item we will refund any overage paid.

  • Brachiopods

    Hustedia mormoni

    • Growth series of 4 specimens of this Pennsylvanian brachiopod.
    • Locality from which the specimens come depends on stock levels at any given time.
    • £
    • In stock
  • Desmoinesia muricitania

    • Growth series of 4 specimens of this Pennsylvanian brachiopod.
    • Locality from which the specimens come depends on stock levels at any given time.
    • £
    • In stock
  • Derbyia crassa

    • Growth series of 4 specimens of this Pennsylvanian brachiopod.
    • Locality from which the specimens come depends on stock levels at any given time.
    • £
    • In stock
  • Punctospirifer kentuckyensis

    • Growth series of 4 specimens of this Pennsylvanian brachiopod.
    • Locality from which the specimens come depends on stock levels at any given time.
    • £
    • In stock
  • Discomyorthis oblata

    • Growth series of 4 specimens of this Devonian brachiopod.
    • Locality from which the specimens come depends on stock levels at any given time.
    • £
    • In stock
  • Meristella atoka

    • Growth series of 4 specimens of this Devonian brachiopod.
    • Locality from which the specimens come depends on stock levels at any given time.
    • £
    • In stock
  • Molluscs

    Worthenia tabulata

    • Growth series of 5 specimens of this Pennsylvanian gastropod.
    • Locality from which the specimens come depends on stock levels at any given time.
    • £
    • In stock
  • Trepospira depressa

    • Growth series of 4 specimens of this Pennsylvanian gastropod.
    • Locality from which the specimens come depends on stock levels at any given time.
    • £
    • In stock
  • Glabrocingulus grayvillensis

    • Growth series of 4 specimens of this Pennsylvanian gastropod.
    • Locality from which the specimens come depends on stock levels at any given time.
    • £
    • In stock
  • Amphiscapha subrugosa

    • Growth series of 4 specimens of this Pennsylvanian gastropod.
    • Locality from which the specimens come depends on stock levels at any given time.
    • £
    • In stock
  • Phymatopleura brazoensis

    • Growth series of 4 specimens of this Pennsylvanian gastropod.
    • Locality from which the specimens come depends on stock levels at any given time.
    • £
    • In stock
  • Pharkidonotus tricarinatus

    • Growth series of 3 specimens of this Pennsylvanian gastropod.
    • Locality from which the specimens come depends on stock levels at any given time.
    • £
    • In stock
  • Economolopsis anadontoides

    • Growth series of 4 specimens of this Pennsylvanian bivalve.
    • Locality from which the specimens come depends on stock levels at any given time.
    • £
    • In stock
  • Palaeyoldia glabra

    • Growth series of 3 specimens of this Pennsylvanian bivalve.
    • Locality from which the specimens come depends on stock levels at any given time.
    • £
    • In stock
  • Astartella newberryi

    • Growth series of 5 specimens of this Pennsylvanian bivalve.
    • Locality from which the specimens come depends on stock levels at any given time.
    • £
    • In stock
  • Astartella concentrica

    • Growth series of 4 specimens of this Pennsylvanian bivalve.
    • Locality from which the specimens come depends on stock levels at any given time.
    • £
    • In stock
  • Oxynotus oxynotum

    • Growth series of 4 specimens of this Jurassic ammonite.
    • Locality from which the specimens come depends on stock levels at any given time.
    • £
    • In stock
  • Miscellaneous

    Pentremites godoni

    • Growth series of 4 specimens of this famous Mississippian blastoid.
    • £
    • In stock
  • Elrathia kingi

    • Growth series of 4 specimens of this trilobite from the Wheeler Shale of Utah
    • £
    • In stock
  • Lophophyllidium proliferum

    • Growth series of 4 specimens of this Pennsylvanian coral from Oklahoma
    • £
    • In stock

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