The III International Symposium on Tardigrada

The congress was attended by XX researchers from XX countries from two continents (Europe and North America). During the three days of the conference XX talks were presented.

This was the first time that a tardigrade meeting took place in the USA and by this it was also the first Symposium held outside of Europe.

Table of contents

Group photo


The Symposium logo, designed by Dr. Diane R. Nelson (East Tennessee State University), shows a crawling individual of Echiniscus xxxxx.


03-06 August 1980.


Johnson City, Tennessee, USA.

World Map from Wikipedia.


East Tennessee State University.


Dr. Diane R. Nelson (East Tennessee State University).

Participants (alphabetically)

 Abe, Wataru (Japan)
 Altiero, Tiziana (Italy)
 Young, James (USA)

Group photo

Photo by Bob Higgins.




Sunday (03.08.1980)
18:00-20:00 Welcome Social at the Beachfront Breezeway


Monday (04.08.1980)
SESSION 1: Welcome (Mediterranean Palm)
09:00-09:10 J. Garey, Symposium Committee Chair
09:10-09:30 S. Schneider, Associate Dean of Research, USF
09:30-10:30 Opening Lecture:
D.R. Nelson
Tardigrade Research: Where Have We Been? Where Are We Going?
10:30-11:00 Morning break (Mediterranean Palm)
SESSION 2: Phylogeny (Mediterranean Palm)
11:00-12:00 J. Reiger  
12:00-13:30 Lunch (Royal Palm)
13:30-14:00 M. Blaxter, B. Elsworth, J. Daub, H. Maroon, A. Aboobaker & F. Thomas Molecular phylogenetics of the Tardigrada and an investigation of the position of tardigrades in animal phylogeny
14:00-14:30 J. Eibye-Jacobsen & R.A. Dewel Three dimensional understanding of the foremost section of the buccal apparatus of Echiniscus viridissimus Peterfi, 1956 (Heterotardigrada)
14:30-15:00 R. Dewel & J. Eibye-Jacobsen Origin and Diversification of the Arthropods: New Interpretations of Some Old Characters
15:00-15:30 Afternoon break (Mediterranean Palm)
15:30-16:00 R. Guidetti, A. Gandolfi, V. Rossi & R. Bertolani. Phylogenetic relationships in Macrobiotidae (Tardigrada). II. Molecular (mtDNA) and morphological approaches
16:00-16:30 P.B. Nichols, D.R. Nelson & J.R. Garey Family Values: A Cladistic Analysis of the Tardigrada



The Symposium talks have been published by the East Tennessee State University Press. The volume contains 12 scientific papers on tardigrade morphology, taxonomy, phylogeny, biogeography, cytology and physiology. The symposium proceedings are dedicated to the memory of Carl H. Rody and Sara E. Dewel.

Proceedings of the Third International Symposium on Tardigrada

Diane R. Nelson






Table of Contents 3
Nelson, D.R. Preface 4-5
Dedication 6
Papers Presented at the Symposium 7-8
Group photo 9
Ramazzotti, G & Maucci, W. A History of Tardigrade Taxonomy. 11-30
Ruppert, E.E. Homology Recognition as a Basis for Comparative Biology. 31-54
Greven, H. Homologues or Analogues? A Survey of Some Structural Patterns in Tardigrada. 55-76
Berlocher, S.H. Molecular Systematics and Taxonomic Problems in the Tardigrada. 77-92
Bertolani, R. Cytology and Reproductive Mechanisms in Tardigrades. 93-113
Weglarska, B. Ultrastructural Study of the Formation of Egg Envelopes in Macrobiotus richtersi (Eutardigrada). 115-127
Walz, B. Molting in Tardigrada. A Review Including New Results on Cuticle Formation in Macrobiotus hufelandi. 129-147
Renaud-Mornant, J. Species Diversity in Marine Tardigrada. 149-177
Hallas, T.E. & Kristensen, R.M. Two New Species of the Tidal Genus Echiniscoides from Rhode Island, U.S.A. Echiniscoididae, Heterotardigrada). 179-192
Pollock, L.W. A Closer Look at Some Marine Heterotardigrada. I. The Morphology and Taxonomy of Orzeliscus. 193-201
Kristensen, R.M. New Aberrant Eutardigrades from Homothermic Springs on Disko Island, West Greenland. 203-220
Schuster, R.O. & Toftner, E.C. Dominican Republic Tardigrada. 221-235



Click here to download the booklet with the programme, abstracts and other Symposium info and here you can find the conference announcement and registration form.


No photos are currently available.

If you have more photos from the Symposium and you would like to share them with others, please send them to us and we will put them on the website.










Copyright by Łukasz Michalczyk (2004-2017)