Sci. Rep., Niigata Univ. (Geology), No. 33, 41‒56, 201841

Report of the 15th meeting of the International Association of Radiolarists(InterRad XV), 20 October – 1 November, 2017, Niigata, Japan

Atsushi MATSUOKA* and organizing committee of the InterRad XV

Abstract
The InterRad XV was organized in Japan from 20 October to 1 November 2017, cohosted by the International Association of Radiolarists, the Geological Society of Japan, thePalaeontological Society of Japan, the Society of Science on Form, Japan, and the Geological
Survey of Japan, AIST. A total of 187 participants from 16 countries attended the meeting.
The scientific sessions were held during 23–27 October at Niigata University, which wasregarded as an activity of a joint seminar in the bilateral programs between Japan (Japan
Society of Promotion of Sciences; JSPS) and China (National Natural Science Foundation ofChina; NSFC). An Abstract Volume including 128 papers presented in the oral and poster
sessions was printed as Volume 40 of“Radiolaria”(ISSN: 0297–5270), the formal newsletterof InterRad. Outreach programs were also included in the InterRad XV. Pre-, mid-, and postconference excursions were carried out and an excursion guide was published in a volumeof Science Reports of Niigata University (Geology) (ISSN: 1349–1237), No. 32 (Supplement),
which is available at the Niigata University Academic Repository (Nuar). The proceedings ofthe InterRad XV will be published as special issues of Island Arc, Paleontological Research,
Revue de Micropaléontologie, and Bulletin of the Geological Survey of Japan.
Key words: InterRad, radiolaria, joint seminar, JSPS–NSFC bilateral program, outreach,proceedings.

＊

Department of Geology, Faculty of Science, Niigata University, Niigata 950–2181, Japan
Corresponding author: A. Matsuoka,
amatsuoka@geo.sc.niigata-u.ac.jp

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Introduction
InterRad is the International Association of Radiolarists. It is a non-profit organizationthat promotes research on all aspects of radiolarian-related fields including biology, ecology,
taxonomy, evolution, biogeography, biostratigraphy and so on. Meetings of InterRad(including former Eurorad) have been held every three years regularly since 1970. The 15th
meeting of InterRad (InterRad XV) was organized from 20 October to 1 November 2017 inJapan. The scientific sessions were held during 23–27 October, 2017 at Niigata University.
InterRad meeting returned to Japan after 23 years since the 7th meeting was held in
October, 1994 in Osaka.
The InterRad XV aimed at having an opportunity to exchange idea for understanding all
aspects of radiolarian-related topics beyond the radiolarian society. The organizing
committee has strongly encouraged the involvement of non radiolarists including scientistsof various research fields, science communicators such as geoparks, artists, and members of
the general public who are interested in radiolarians. In order to achieve this goal, thecommittee organized interdisciplinary symposia in the scientific sessions, set up various
outreach programs, and created new products in collaboration with artists for outreachpurposes.
This report summarizes the organization of the InterRad XV in Niigata 2017, thescientific sessions, excursions, and outreach activities. Reports on the InterRad XV in
Niigata 2017 have already been published in Abstracts of Society of Science on Form, Japan(Matsuoka, 2017) and in“News”of the Geological Society of Japan (Fujii, 2018; Nakagawa etal., 2018). A short summary of the meeting was also reported in Volume 41 of“Radiolaria”,
the official newsletter of InterRad (Matsuoka, 2018a). Additional reports will be presented in“Fossils”of the Palaeontological Society of Japan (Ichinohe and Yamashita, 2018) and in the
Journal of Geography of the Tokyo Geographical Society (Matsuoka, 2018b).
Organization of InterRad XV in Niigata 2017
The InterRad XV in Niigata 2017 was planned and conducted by the following
committees and was co-hosted by the International Association of Radiolarists, theGeological Society of Japan, the Palaeontological Society of Japan, the Society of Science on
Form, Japan, and the Geological Survey of Japan, AIST.
Organizing Committee of InterRad XV in Niigata 2017:
Honorary Chairperson: Akira YAO (Osaka City University)
Chairperson: Atsushi MATSUOKA (Niigata University)
Main Secretary: Noritoshi SUZUKI (Tohoku University)Report of InterRad XV

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Sub Secretary: Takuya ITAKI (Geological Survey of Japan) and Tsuyoshi ITO (Geological
Survey of Japan)
Treasurer: Toshiyuki KURIHARA (Niigata University)
Executive Members: Satoshi NAKAE (Geological Survey of Japan), Yukihisa NISHIZONO(West Japan Engineering Consultants Inc.), Yoshihito KAMATA (Tsukuba University),
and Takashi YOSHINO (Toyo University)
Webmaster: Takashi YOSHINO
Publication Planners:
Co-chief: Atsushi MATSUOKA, Noritoshi SUZUKI, and Takuya ITAKI
Editorial Members: Katsuo SASHIDA, U. Kagan TEKIN, Keisuke ISHIDA (Island Arc),
Atsushi TAKEMURA (Paleontological Research), Satoshi NAKAE (Bulletin of theGeological Survey of Japan), and Taniel DANELIAN (Revue de Micropaléontologie)
Excursion Coordinator: Tsuyoshi ITO
Excursion Leaders:
Pre-meeting Excursions
Excursion A (Boso–Bandai) [cancelled]: Isao MOTOYAMA, Takuya ITAKI, Shin’ichi
KAMIKURI, Yojiro TAKETANI, and Makoto OKADA
Excursion B (Inuyama): Tetsuji ONOUE, Rie S. HORI, and Satoru KOJIMA
Mid-day Excursions
Excursion C (Itoigawa): Tsuyoshi ITO, Yousuke IBARAKI, and Atsushi MATSUOKA
Excursion D (Tainai): Isao MOTOYAMA, Toshiyuki KURIHARA, and Takuya ITAKI
Post-meeting Excursion
Excursion E (Okinawa): Atsushi MATSUOKA, Tsuyoshi ITO, Noritoshi SUZUKI, Katsunori
KIMOTO, Akihiro TUJI, Xin LI, and Ryo ICHINOHE
Scientific Committee:
Atsushi MATSUOKA, Takuya ITAKI, Yoshiaki AITA, Peter O.BAUMGARTNER, Marco
CHIARI, Taniel DANELIAN, Špela GORIČAN, Weihong HE, Rie S. HORI, Richard W.
JORDAN, Yoshihito KAMATA, Katsunori KIMOTO, Kiyoko KUWAHARA, Gang LI,
Hui LUO, Fabrice NOT, Luis O'DOGHERTY, Yusuke OKAZAKI, John ROGERS, Yuta
SHIINO, Satoshi TAKAHASHI, U. Kagan TEKIN, and Yuki TOKUDA
Corporate Backers:
Niigata University; Faculty of Science, Niigata University; Graduate School of Science andTechnology, Niigata University; Research Center of Science on Form, Niigata University;

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A. Matsuoka and InterRad XV organizing committee

Fig. 1. Program Booklet for InterRad XV in Niigata 2017.

Sesoko Station, the Tropical Biosphere Research Center, the University of the Ryukyus;
Japanese Geopark Network; Itoigawa UNESCO Global Geopark; Bandaisan Geopark; RC
GEAR; Image Mission Inc.; JUNKUDO Bookstore Niigata; The Niigata Nippo; The Asahi
Shimbun Company (朝 日 新 聞 新 潟 総 局); The Yomiuri Shimbun (読 売 新 聞 新 潟 支 局);
The Mainichi Newspapers (毎日新聞新潟支局); NHK (Japan Broadcasting Corporation);
Broadcasting System of Niigata Inc.; NST; Television Niigata Network Co. Ltd.; The
Niigata Television Network 21, Inc.; FM-NIIGATA Co. Ltd.
Outline of InterRad XV in Niigata 2017
A total of 187 participants, including 46 scientists from abroad, attended the meetingfrom 16 countries; Australia, China, France, Germany, Indonesia, Italy, Japan, Korea,
Mongolia, the Philippines, Russia, Slovenia, Spain, Switzerland, Turkey, and the UnitedStates of America. A 14-page Program Booklet (Fig. 1) describes all of the activities held in
Niigata. The scientific sessions were held on 23–24 October at the Ikarashi Campus of
Niigata University and on 26–27 October at the“Eki-nan”Campus TOKIMATE of Niigata
University. The scientific sessions with mid-day excursions were regarded as an activity ofa joint seminar in the bilateral programs between Japan (Japan Society of Promotion of
Sciences; JSPS) and China (National Natural Science Foundation of China; NSFC). An
abstract Volume (Fig. 2A) including 128 papers presented in the oral and poster sessions
was printed as Volume 40 of“Radiolaria”(ISSN: 0297–5270) (Ito et al. (eds.), 2017), the formal
newsletter of InterRad. Outreach programs were performed on 22 and 25 October. The
Icebreaker Party, Welcome Party, and Farewell Party were held in the evenings of 22, 23
and 27 October, respectively.
Two pre-conference excursions were planned; Boso–Bandai (Excursion A, Motoyama etReport of InterRad XV

A

45

B

Fig. 2. Cover pages of Abstract Volume (A) and Excursion Guide (B) of InterRad XV in Niigata 2017.

al., 2017a) and Inuyama (Excursion B, Onoue et al., 2017), but only Excursion B was carriedout. On 25 October, two mid-day excursions were held: Itoigawa (Excursion C, Ito et al.,2017) and Tainai (Excursion D, Motoyama et al., 2017b). After all activities in Niigata, a postconference excursion was carried out in Okinawa (Excursion E, Ito and Matsuoka, 2017;
Matsuoka et al., 2017). An excursion guide (Fig. 2B) was published in a volume of Science
Reports of Niigata University (Geology) (ISSN: 1349–1237), No. 32 (Supplement), which isavailable at the Niigata University Academic Repository (Nuar).
Scientific sessions
The scientific sessions were held on 23–24 October in the Central Library in the IkarashiCampus, Niigata University (Fig. 3) and on 26–27 October in the“Eki-nan”Campus
TOKIMATE of Niigata University (Fig. 4).
1. Opening Ceremony
The Opening Ceremony was performed in the morning of 23 October at the Library Hallin the Central Library of Niigata University in a windy condition due to an unseasonabletyphoon. It started with an opening address by MATSUOKA, A. (Chairperson of InterRad
XV) and was followed by two welcome addresses by Sugata TAKAHASHI (President of
Niigata University) and YAO, A. (Honorary Chairperson of InterRad XV) who was thechairperson of the InterRad VII in 1994. Group photographs (Fig. 3A) were taken inside of
the Library Hall because of stormy weather.
2. Oral and poster presentations
A total number of 128 papers were presented in the oral and poster sessions during the

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A

B

C

D

E

Fig. 3. Science sessions on 23–24 October in the Central Library of Niigata University (Ikarashi Campus). A.
Group photograph in the Library Hall, B. Oral session in the Library Hall, C. Poster presentation in the
Library Gallery, D. Poster presentation with hands-on exhibit, E. Display booth in the Exhibition Space.

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A

B

C

Fig. 4. Science sessions on 26–27 October in TOKIMATE of Niigata University“Eki-nan”Campus. A.
Entrance of TOKIMATE, B. Oral session in the Lecture Room, C. Poster presentation in the Meeting Room A.

scientific sessions at Niigata University. Abstract Volume of InterRad XV with 324 pages(Fig. 2A) was printed as Volume 40 of“Radiolaria”, formal newsletter of InterRad, which isavailable at the InterRad XV web page as well. A 14-page Program Booklet (Fig. 1) was
prepared for all of the activities held in Niigata. Digital data of the printed material are
included in a DVD which was delivered to all participants as one of conference material.
The first two days (23–24 Oct.) were devoted to special symposium composed of five oral
sessions, namely Paleoceanography of Tethys and Panthalassa (Chairs: TAKAHASHI, S. and
BAUMGARTNER, P. O.), Cenozoic Paleoceanography in Marginal Seas (Chairs: ITAKI, T.,
OKAZAKI, Y., and JORDAN, R. W.), Biology and Paleobiology of Shelled Protista (Chairs:
KIMOTO, K. and NOT, F.), An Interface between Function and Evolution (Chairs:
TOKUDA, Y. and SHIINO, Y.), and Jurassic–Cretaceous Boundary (Chairs: MATSUOKA, A.
and LI, G.). All of these sessions were organized in an interdisciplinary manner. Specialists
from a wide range of research fields including micropaleontology, oceanography, tectonics,
molecular biology, science on form, etc. attended the sessions. Poster sessions of these topics
were also held in the Library Gallery. The Geological Survey of Japan, Itoigawa UNESCO
Global Geopark, RC GEAR, and Image Mission Inc. set up a booth and displayed theirproducts or work in the exhibition space next to the Library Hall.

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The last two days (26–27 Oct.) were assigned to general symposia consisting of eight oral
sessions, namely Insightful Studies for Radiolarians (Chairs: AITA, Y. and ROGERS, J.),
Biosiliceous Records (Chairs: ROGERS, J. and AITA, Y.), Modern Oceanography (Chairs:
Hori, R. S. and KUWAHARA, K.), Paleobiogeography (Chairs: KUWAHARA, K. and HORI, R.
S.), Evolution and Diversity (Chairs: HE, W. H. and CHIARI, M.), Biostratigraphy (Chairs:
CHIARI, M. and HE, W. H.), Tibetan Tectonics (Chairs: DANELIAN, T. and LUO, H.), andEuropean Tectonics (Chairs: LUO, H. and DANELIAN, T.). The oral sessions were held in
the Lecture Room of TOKIMATE. The poster sessions of these topics were also held in theMulti-purpose Space and Meeting Room A in TOKIMATE. The Geological Survey of Japanand RC GEAR displayed their products in the Multi-purpose Space. The participants
enjoyed the exhibition“World of Radiolaria”displayed as an activity of the Niigata
University WeeK. Paleozoic, Mesozoic, and Cenozoic–Recent Working Group meetings werealso organized in TOKIMATE. At the end of the meeting on 27 October, a business meetingand the Closing Ceremony were performed at TOKIMATE. During the business meeting, it
was decided that the 16th InterRad meeting will be held in Ljubljana, Slovenia in
September, 2020 and the next InterRad President would be GORIČAN, Š.
Icebreaker Party, Welcome Party and Farewell Party
1. Icebreaker Party
The Icebreaker Party was held at Art Hotel Niigata Station in the evening of 22 Octoberjust after the talk show“What’s Rad??”performed in Café Space in JUNKDO Bookstore
Niigata, basement floor of the same building of Art Hotel Niigata Station. The participants
enjoyed a good time at a buffet party.
2. Welcome Party
In the evening of 23 October, the Welcome Party was held at ANA Crown Hotel Niigata(Fig. 5A). The party started with a welcome address by MATSUOKA, A., followed by a“Kagami-Biraki”, a“sake”barrel opening ceremony (Fig. 5B) and toast proposed by Yuichiro
TANAKA, representative of the Geological Survey of Japan, AIST. Participants enjoyedperformance of dance and music by Niigata“Geigi”women (Fig. 5D) and by a Japanesedrum team (Fig. 5E). Speeches by representative of the co-host organizations were as
follows: Yoshio WATANABE, President of the Geological Society of Japan; Makoto
MANABE, President of the Palaeontological Society of Japan; Kiyoshi MIYAMOTO,
President of Science on Form, Japan.
3. Farewell Party
The Farewell Party was performed at Art Hotel Niigata Station in the evening of 27

Report of InterRad XV

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A

B

C

D

E

Fig. 5. Welcome Party at ANA Crown Hotel Niigata. A. Sit-down dinner in Room Fuyo, B.“Kagami-Biraki”,“sake”barrel opening ceremony, C.“Choco”, small cup for“sake”rice wine, with logo of InterRad XV in
Niigata 2017, D. Dance and music by Niigata“Geigi”women, E. Performance by a Japanese drum team.

October. Winners of the Best Oral and Poster Presentation Award for Young Scientists inInterRad XV were introduced and the awarding ceremony was also held during theFarewell Party (Fig. 6). The winners’names in bold and the titles of their presentation are
as follows.
Best Oral Presentation Award for Young Scientists:
Miguel M. SANDIN, Loic PILLET, Tristan BIARD, Camille POIRIER, Florence LE GALL,
Estelle BIGEARD, Sarah ROMAC, Sebastien COLIN, Charles BACHY, Lucie BITNER,
Taniel DANELIAN, Noritoshi SUZUKI, and Fabrice NOT: Time calibrated morphomolecular classification of Polycystine Nassellaria (Radiolaria)

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A

B

C

D

E

Fig. 6. Winners of Best Oral and Poster Presentation Awards for Young Scientists at Farewell Party. A.
Miguel M. SANDIN, B. Shun MUTO, C. Yasuhide NAKAMURA, D. Maximilien BOLE, E. Kento NIIMURA.

Shun MUTO, Satoshi TAKAHASHI and Satoshi YAMAKITA: Three episodes of black
claystone deposition in the pelagic Panthalassa during the Early Triassic
Best Poster Presentation Award for Young Scientists:
Yasuhide NAKAMURA, Rei SOMIYA, Akihiro TUJI, Dhugal J. LINDSAY, Hiroaki OHFUJI,
and Rie S. HORI: Cell division of phaeodarians ―the first step to clarify the life cycle―
Maximilien BOLE, Peter O. BAUMGARTNER, Rie HORI, and Masayuki IKEDA: Secularvariations of oxygen and silicon isotopes in Mesozoic radiolarites from Panthalassa andTethys ―proxies for paleo temperature and paleo productivity
Kento NIIMURA, Yoshiaki AITA, Sakurako SUZUKI, Kako MASHIKO, Yoshino ISHIZAKI,
and Naoko KISHIMOTO: Detailed internal structures of Middle Triassic Glomeropyle
galagala? and unnamed Glomeropyle sp. with the use of X-ray micro-CT
Outreach activities
1. Outreach Programs
The InterRad XV in Niigata 2017 started with two outreach programs entitled“Let’smake friends with plankton”at TOKIMATE, a satellite (Eki-nan) campus of Niigata
University during 14:00–15:00 on 22 October and“What’s rad??”at Café Space in JUNKDO
Bookstore Niigata during 15:30–17:00 on the same day (Fig. 7).
The former was one of the Niigata University WeeK activities, which included an
exhibition called“World of Radiolaria”in the Multi-purpose Space of TOKIMATE from 15
October to 27 October (Fig. 7A). The participants took delight in microscope observations ofplankton with living radiolarians obtained from the Japan Sea off Sado Island by a staff in
the Sado Marine Station belonging to Faculty of Science, Niigata University.

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A

B

C

D

Fig. 7. Outreach activities during InterRad XV. A. Hands-on display“Let’s make friends with plankton”andexhibition“World of Radiolaria”in the Multi-purpose Space of TOKIMATE, B. Talk show“What’s rad??”atCafé Space in JUNKDO Bookstore Niigata, C. International Communication Program in the Multi-purpose
Space of TOKIMATE, D. Outreach items displayed in exhibition“World of Radiolaria”.

The talk show“What’s rad??”was performed by MATSUOKA, A. as a scientist andHayato YOKOYAMA as an artist (Fig. 7B). This scientist–artist collaboration was assigned
to the 101th performance of Science Café Niigata. Some of the participants in the show
joined the Icebreaker Party held at Art Hotel Niigata Station and had an opportunity to talkwith radiolarian specialists from all over the world.
2. International Communication Program
In the evening of 25 October, an International Communication Program was held in theMulti-purpose Space of TOKIMATE (Fig. 7C). BAUMGARTNER, P. O., Professor of the
University of Lausanne in Switzerland, made a one-hour lecture on Mesozoic radiolarians
and ocean circulation not only for scientists but also for radiolarian-loving persons with an
English–Japanese consecutive interpretation by MATSUOKA, A. As many as 50 people
attended the lecture.
3. Outreach items
The logo of the 15th InterRad in Niigata 2017 was a result of collaborative work with an

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Image Mission

RC GEAR

A

B

Fig. 8. Silver figures of radiolarians produced by RC GEAR (A) and 2018 radiolarian calendar made by
Image Mission Inc (B).

artist (Kazuyuki MORIA). The logo was used for publicity activities, official documents,
Abstract Volume, Program Booklet, and even for the design of choko small cups for sake
(Japanese rice wine) (Fig. 5C). Silver figures of radiolarian skeletons ranging in age from theCambrian to Quaternary (Fig. 8A), which were results of joint work between an artist(YOKOYAMA, H.) and radiolarian specialists, were an official commemorative gift for eachparticipant. On the occasion of the InterRad XV, several outreach items were newly
produced. Photomicrographic images or designs of radiolarian skeletons were used forcalendars, playing cards, T-shirt prints and so on (Fig. 7D). A radiolarian calendar for theyear of 2018 was made by Image Mission Inc. (Fig. 8B) and was sold at JUNKDO Bookstore
Niigata, National Science Museum in Tokyo, Osaka Museum of Natural History, and others.
Excursions
A total of five excursions (A to E), two pre-conference, two mid-day, and one postconference excursions, were planned (Fig. 9). Four of them, except Excursion A (Boso–
Bandai), were implemented with some modifications due to weather conditions. An
excursion guide (Fig. 2B) was published in a volume of Science Reports of Niigata UniversityReport of InterRad XV

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A

B

C

D

E

Fig. 9. Excursion locations and group photograph of each excursion. A. Location map of Excursions, B. Kiso
River bank in Excursion B, C. Fossa Magna Museum in Excursion C, D. Shimizu-en in Excursion D, E.
Sesoko Marine Station in Excursion E.

A. Matsuoka and InterRad XV organizing committee

54(Geology) (ISSN: 1349–1237), No. 32 (Supplement), which is available at the Niigata University
Academic Repository (Nuar). Highlights of each excursion were introduced by the editors(Matsuoka and Ito, 2017). The location map in the excursion guide and group photograph ofeach excursion are shown in Fig. 9.
1. Pre-conference excursion
Pre-conference Excursion B (Inuyama) with 19 participants started from Unuma near
Nagoya on 20 October, visited several localities of Triassic–Jurassic chert sequences in the
Mino and Hida areas, central Japan (Fig. 9B), and finished at Niigata Station in the afternoonof 22 October. Fujii (2018) and Nakagawa et al. (2018) reported their experience during theexcursion. Detailed descriptions of all the stops are given in Onoue et al. (2017).
2. Mid-day excursions
In the mid-day of the meeting on 25 October, two mid-day excursions were carried out
in the Itoigawa UNESCO Global Geopark (24 participants) and the Tainai area with a“sake”
winery visit in Shibata (20 participants). Details of Excursions C (Itoigawa) and D (Tainai)are described in Ito et al. (2017) and Motoyama et al. (2017b), respectively.
3. Post-meeting excursion
In the morning of 28 October, the participants of the post-conference excursion(Excursion E) headed to Tokyo together with another unseasonable typhoon. After an
unplanned overnight in Tokyo, the 22 participants flew to Okinawa, observed living
radiolarians and enjoyed the Okinawa Churaumi Aquarium and the Nakijin Castle Ruins ―a UNESCO World Heritage site. Detailed descriptions of procedures in living radiolarian
research and the excursion sites are given in Matsuoka et al. (2017) and Ito and Matsuoka(2017).
All the activities of the InterRad XV ended successfully at Naha Airport in Okinawa on
1 November.
Proceedings
The proceedings of the InterRad XV will be published as special issues of Island Arc(SASHIDA, K., TEKIN, U. K., and ISHIDA, K.), Paleontological Research (TAKEMURA, A.),
Revue de Micropaléontologie (DANELIAN, T.), and Bulletin of the Geological Survey ofJapan (NAKAE, S.). Editors of each special issue are indicated in parentheses. MATSUOKA,
A., SUZUKI, N., and ITAKI, T. act as publication planners.

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Acknowledgements
The organizing committee would like to express sincere thanks to all participants andcontributors who made the InterRad XV in Niigata 2017 fruitful and successful. Many
thanks go to representatives of the co-host organizations who attended the meeting.
InterRad XV was financially supported by Niigata Prefecture, Niigata Visitors andConvention Bureau, Tokyo Geographical Society, and the West Japan Engineering
Consultants Inc. The scientific sessions in Niigata University and mid-day excursions ofInterRad XV are regarded as an activity of a joint seminar in the bilateral program
between Japan and China supported by the Japan Society of Promotion of Sciences (JSPS)and the National Natural Science Foundation of China (NSFC). This international conference
was supported by JSPS KAKENHI Grant Numbers 15K05329 and 15H02142. The
Palaeontological Society of Japan gave a supporting fund to three young scientists.
Conference material including commemorative gifts and equipment were supplied by the
Geological Survey of Japan, AIST; Fossa Magna Museum in the Itoigawa City Board of
Education; RC GEAR; Image Mission Inc.; Shiokawa Sake Brewery; Kameda Seika Co. Ltd.
Special thanks go to YOKOYAMA, H. and MORIA, K. for their great contribution to
introducing radiolarians to members of the general public through their dedicatedcollaboration as artists. Theodore Brown of the Itoigawa UNESCO Global Geopark read themanuscript and corrected the English. Niigata University provided university facilities
including the Central Library and TOKIMATE for the InterRad XV in Niigata 2017.

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Ichinohe, R. and Yamashita, D., 2018 in press, Report of InterRad XV in Niigata 2017. Fossils (PalaeontologicalSociety of Japan), no. 104.
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*The title was translated by the authors.