The conference will take place in the halls of ZRC SAZU and SAZU in the center of Ljubljana. Oral presentations will be held in the main hall of SAZU, Novi trg 3. All talks will be plenary; no parallel sessions will be organized. Posters will be displayed in the Atrium of ZRC SAZU, Novi trg 2. All posters will be left on display for the four days of the conference.

Presentations and abstracts

Each attendee can be the presenter on up to two posters and one talk (either as first author or as a presenting coauthor). Abstracts will be limited to two pages including references, tables and figures; a template with detailed instructions will be posted on the InterRad 16 website. Acceptance of communications as talk or poster, as well as the duration of talks will depend on the number of contributions and will be determined when the abstract submission is completed.


English will be the official language of the conference.

Program Outline

September 9–12,
Thursday to Sunday
4 days
(3 overnights)
Pre-conference excursion A to the Northern Calcareous
Alps, Austria
September 12,
EveningArrival; Registration and Ice Breaker Party
September 13,
Morning and afternoonOpening ceremony, oral presentations, poster session and Paleozoic Working Group session
September 14,
Morning and afternoon;

Oral presentations, poster session, Mesozoic and Cenozoic Working Group sessions
Welcome Party
September 15,
Whole dayMid-conference excursions B1 and B2
September 16,
Morning and afternoon;

Oral presentations, poster session, business meeting,
closing ceremony;
Farewell Party
September 17–21,
Friday to Tuesday
5 days
(4 overnights)
Post-conference excursion C to the southern Dinarides,


S1Taxonomy, biostratigraphy and paleoecology of Paleozoic radiolarians. Special session in memory of Martial CARIDROIT (1957–2019).Taniel DANELIAN, Patrick DE WEVER and Paula NOBLE
S2Taxonomy, biostratigraphy and paleoecology of Mesozoic radiolarians. Special session in memory of Elspeth Urquhart (1949–2019).Liubov G. Bragina and Nikita Yu. Bragin 
S3Taxonomy, biostratigraphy and paleoecology of Cenozoic radiolarians.David Lazarus
S4Radiolarians from mountain belts and past oceans.Peter O. BAUMGARTNER and Nevenka DJERIĆ
S5Radiolarian systematics, biochronology and evolution. Special session in memory of William R. Riedel (1927–2020).Paulian Dumitrica 
S6Radiolarians in contemporary ecosystemsTristan BIARD and Fabrice NOT
S7Geometry of radiolarian skeletons.Atsushi MATSUOKA
S8History of radiolarian research.Patrick DE WEVER


The following journals have offered to publish a special issue with contributions presented at InterRad 16:

  1. Revue de Micropaléontologie,, Guest Editors: Špela Goričan, Luis O’Dogherty and Taniel Danelian
  2. Ofioliti,, Guest Editors: Marco Chiari, Atsushi Matsuoka and Angela Bertinelli
  3. Folia biologica et geologica,, Guest Editors: Aleksander Horvat, Tim Cifer and Špela Goričan

The deadline for the submission of manuscripts will be after September 2020 and will be decided at the business meeting of InterRad 16 in Ljubljana.