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Amphitrematidae Poche 1913

Edward Mitchell and Ralf Meisterfeld
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taxon links Phylogenetic position of group is uncertain[down<--]Thecofilosea Interpreting the tree
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Containing group: Thecofilosea

Characteristics

Test has 2 pseudostomes; shell either organic or with attached extraneous material.

Discussion of Phylogenetic Relationships

The position of the Amphitrematidae is currently uncertain. Due to an error by De Saedeleer (1934) this family has been sometimes included with the Granuloreticulosea, but there is no doubt that Amphitrema and Archerella have filopodia (cf. images).

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Amphitrema stenostoma (left), Archerella flavum (right). © Edward Mitchell

The pseudopodia of Paramphitrema differ significantly, and it is unclear whether the presence of two apertures is sufficient to place this genus in the Amphitremidae.

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Paramphitrema. © 2008

Diplophrys and Microcometes have previously been included in this area but Diplophrys has since been shown to have affinities with the Labyrinthulids (Dykstra & Porter, 1984) and Microcometes is a flagellate.

Title Illustrations
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Scientific Name Amphitrema wrightianum
Specimen Condition Live Specimen
Identified By Edward Mitchell
Copyright © Edward Mitchell
Scientific Name Amphitrema wrightianum
Comments Endosymbiontic algae are visible in red (fluorescence microscopy)
Specimen Condition Live Specimen
Identified By Edward Mitchell
Copyright © Edward Mitchell
Scientific Name Paramphitrema
Location BC, Canada
Specimen Condition Live Specimen
Identified By Chitchai Chantangsi
Copyright © 2008
About This Page

This page is being developed as part of the Tree of Life Web Project Protist Diversity Workshop, co-sponsored by the Canadian Institute for Advanced Research (CIFAR) program in Integrated Microbial Biodiversity and the Tula Foundation.

Edward Mitchell
University of Neuchâtel


Rheinisch-Westfälische Technische Hochschule Aachen, Germany

Correspondence regarding this page should be directed to Edward Mitchell at and Ralf Meisterfeld at

Page: Tree of Life Amphitrematidae Poche 1913. Authored by Edward Mitchell and Ralf Meisterfeld. The TEXT of this page is licensed under the Creative Commons Attribution-NonCommercial License - Version 3.0. Note that images and other media featured on this page are each governed by their own license, and they may or may not be available for reuse. Click on an image or a media link to access the media data window, which provides the relevant licensing information. For the general terms and conditions of ToL material reuse and redistribution, please see the Tree of Life Copyright Policies.

Citing this page:

Mitchell, Edward and Ralf Meisterfeld. 2009. Amphitrematidae Poche 1913. Version 06 May 2009 (under construction). http://tolweb.org/Amphitrematidae/124617/2009.05.06 in The Tree of Life Web Project, http://tolweb.org/

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