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Welcome to Treatise Online, an online journal presenting completed chapters of upcoming volumes of the Treatise on Invertebrate Paleontology

  Treatise Online will publish chapters prepared for parts of the Treatise as they are ready, rather than waiting for an entire hard copy Treatise volume to be printed.

  Printing of the hard copy volumes will continue as usual, with the opportunity for updating chapters published in Treatise Online before going to press.

  Articles from the forthcoming volumes listed below are available
for purchase as individual chapters.

 = contains available chapters              = chapters in preparation

  Part B vol. 1

  Part E (Revised), Porifera, vol. 4, Hypercalcified Porifera

  Part F (Revised), vol. 2, Cnidaria (Scleractinia)

  Part G (Revised), vol. 1, Bryozoa

  Part J Paleozoic Gastropoda

  Part L (Revised), Mollusca 4, vol. 3B, Triassic and Jurassic Ammonoidea

  Part M Mollusca 5, vol. 1, Coleoidea

  Part N (Revised) Mollusca 6, vol. 1, Bivalvia

  Part P (Revised), Arthropoda 2, vol. 1, Chelicerata

  Part R (Revised), Arthropoda 4, vol. 1, Crustacea

  Part T (Revised), Echinodermata 2, vol. 1, Crinoidea

  Part V (Second Revision), vol. 1, Graptolithina

Treatise Online Subscriptions

  Treatise Online offers annual subscriptions for libraries and institutions, as well as individual subscribers. Follow the links below for additional subscription information.


  Subscribers have full access to all articles published in Treatise Online
during the term of the subscription.


Supporters of Treatise Online

Members of the Palaeontological Association, Paleontological Society, or SEPM
can enjoy free access to Treatise Online.

Click one of the logos below to login to your society member page
where you will find access to Treatise Online.