Development and systematic position of the Monticuliporoids

Abstract

Research Article| January 01, 1912 Development and systematic position of the Monticuliporoids E. R. CUMINGS E. R. CUMINGS Search for other works by this author on: GSW Google Scholar GSA Bulletin (1912) 23 (1): 357–370. https://doi.org/10.1130/GSAB-23-357 Article history received: 28 Feb 1912 first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation E. R. CUMINGS; Development and systematic position of the Monticuliporoids. GSA Bulletin 1912;; 23 (1): 357–370. doi: https://doi.org/10.1130/GSAB-23-357 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract IntroductionIn my paper on the development of Paleozoic Bryozoa (6), published in 1904, I stated that the results brought out in that paper regarding the budding order of the initial growth stages of the bryozoan colony would afford a solution of the systematic position of the Trepostomata, or Monticuliporoids. In a second paper (7) I showed that the protoecium, or first exothecal stage of the primary individual of the colony, is very persistent in the primitive order of the Cyclostomata, and that it is also very strikingly developed in the Cryptostomata (Fenestella, Polypora, Thamniscus, etcetera). The exact form and morphological and developmental significance of this feature of bryozoan development were discussed at length in the latter paper.During the past six years I have succeeded in obtaining the desired evidence in regard to the development of the Trepostomata, and have worked out in detail the development of a number . . . This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.