Japan Geoscience Union Meeting 2023

Presentation information

Poster

O (Public ) » Public

[O-06] Poster presentations by senior high school students

Sun. May 21, 2023 1:45 PM - 3:15 PM Poster (Exhibition Hall 8, Makuhari Messe)

convener:Tatsuhiko Hara(International Institute of Seismology and Earthquake Engineering, Building Research Institute), Katsuyoshi Michibayashi(Department of Earth and Planetary Sciences, Nagoya University), Miwa Kuri(Japan Meteorological Agency), Keiko Konya(Japan Agency for Marine-Earth Science and Technology)

On-site poster schedule (2023/5/21 13:45-15:15)

1:45 PM - 3:15 PM

[O06-P54] Exploring the way of life in old days from a three-dimensional model of Trigonia

*Kentaro Kikuchi1, *Akari Senzaki1 (1. Miyagi Prefecture Sendai Daisan High School)

Keywords:Trigonia, Paleoecology, three-dimensional model


Trigonia, a bivalve that lived in the intertidal zone of the ocean from the Jurassic
to the Cretaceous, has been extensively studied, but there are many unclear points regarding its characteristic areas, discs, and the role of protrusions on its surface. In this study, three-dimensional models were created, and the life form and living environment of Trigonia were examined from their characteristics. In the experiments, comparisons were made between the presence or absence of projections and the size of areas, etc., and considerations were made based on the data obtained. In addition, comparison with native species was also performed, and the superiority of the shape was also considered. At this stage, it is suggested that the protrusions were useful for improving Trigonia's holding power to the sand, and it was also found that Area may have maintained Trigonia's posture against water currents and sand.