Lyell Collection
Geological Society, London, Special Publications
Lyell Centre  |   Lyell Collection  |   Subscriptions   |   Geological Society  |   Email alerts  |   Online bookshop  |   Help

Keywords:
Author:
Advanced search>>
This Article
Right arrow Full Text (PDF) FREE
Right arrow References
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow Request Permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Banner, F. T.
Right arrow Articles by Smout, A. H.
Right arrow Search for Related Content
Geological Society, London, Special Publications; 1967; v. 2; p. 291-332;
DOI: 10.1144/GSL.SP.1967.002.01.26
© 1967 Geological Society of London

Invertebrata

Chapter 8 Protozoa

F. T. Banner, PH.D., W. J. Clarke, PH.D., J. L. Cutbill, M.A. PH.D F.G.S., F. E. Eames, D.SC. A.R.C.S. F.G.S., A. J. Lloyd, PH.D. F.G.S., W. R. Riedel, M.SC. & A. H. Smout, PH.D. F.G.S.

Department of Geology, University College of Swansea, Singleton Park, Swansea
B.P. Research Centre, Chertsey Road, Sunbury-on-Thames, Middlesex
Department of Geology, Sedgwick Museum, Downing Street, Cambridge
B.P. Research Centre, Chertsey Road, Sunbury-on-Thames, Middlesex
Department of Geology, University College, Gower Street, London W C 1
Scripps Institution of Oceanography, La Jolla, California 92037, U.S.A.
B.P. Research Centre, Chertsey Road, Sunbury-on-Thames, Middlesex

Class ACTINOPODA Calkins 1909

Subclass HELIOZOA Haeckel 1866

Unimportant as fossils. Range Pleist—extant. (Treatise D).

Subclass RADIOLARIA Müller 1858

Introduction: Radiolarian literature is replete with unjustifiably precise identifications of poorly preserved specimens, resulting in taxa appearing to have longer time-ranges than they actually had. These very numerous doubtful records cannot all be included here because of considerations of space, and therefore only those based on well preserved specimens are mentioned. Also, some minor families of uncertain taxonomic position are omitted. The taxonomic system presented herein differes somewhat from that generally used in the past, and is believed to reflect natural relationships more closely.

Order TRIPYLEA Hertwig 1879

First, Tert M.Mioc: Protocystis Wallich spp., Lithogromia Haeckel sp. and Challengeranium Haeckel sp., upper Tortonian zone of diapiric folds, Ploiesti region, Romania (Dumitrica 1964, 1965). Extant.

Comment: Records few because of fragility and/or solubility of skeleton. Cret Cannosphaeropsis described by Wetzel 1933 is a hystrichosphaerid (Deflandre 1952a).

Order POLYCYSTINA Ehrenberg 1838 emend.

Comment: Emended definition of order—Radiolaria with skeleton of opaline silica without admixed organic compounds.

Suborder SPUMELLARIA Ehrenberg 1875

Family ENTACTINIIDAE Riedel 1967

First, Dev Frasn-Famenn: Haplentactinia Foreman spp., Entactinia Foreman spp., Entactinosphaera Foreman spp., Polyentactinia Foreman spp., Tetrentactinia Foreman spp., and Cyrtentactinia Foreman spp., Huron member, Ohio shale, northern Ohio (Foreman 1963).

Last, Carb Namur: Entactinia, Entactinosphaera, and Polyentactinia, Reticuloceras bilingue Z., Staffordshire and Derbyshire, England (Holdsworth 1966).

Comment: Definition of family—Palaeozoic spumellarians with single or multiple, spherical or ellipsoidal lattice-shell, with internal spicule of 4–6 (rarely more) rays which extend

...

This 250-word extract was created in the absence of an abstract.