The Rediscovery and Taxonomical Reexamination of the Longirostrine Crocodylian from the Pleistocene of Taiwan

Ai Ito; Riosuke Aoki; Ren Hirayama; Masataka Yoshida; Hiroo Kon; Hideki Endo

doi:10.2517/2017PR016

The Rediscovery and Taxonomical Reexamination of the Longirostrine Crocodylian from the Pleistocene of Taiwan

Ai Ito, Riosuke Aoki, Ren Hirayama, Masataka Yoshida, Hiroo Kon, Hideki Endo

School of International Liberal Studies

Research output: Contribution to journal › Review article › peer-review

3 Citations (Scopus)

Abstract

A partial crocodylian skull was found among the paleontological collection at the Archaeological Museum, Waseda University in Honjo-shi, Saitama Prefecture. Following a bibliographical survey, this was verified as a specimen reported by Tokunaga as the first known crocodile from Taiwan but then regarded as lost due to World War II. Molten glass debris is attached to the specimen, suggesting that it had been subject to air raids during World War II in May 1945, most likely at the Waseda University campus. Based on its largest seventh maxillary alveoli and the prominent lateral expansion towards the posterior direction, this specimen was identified as Toyotamaphimeia sp.; up to now a single species under this genus has been reported. The discovery demonstrates that this crocodylian genus once had a wide geographical distribution during the Pleistocene.

Original language	English
Pages (from-to)	150-155
Number of pages	6
Journal	Paleontological Research
Volume	22
Issue number	2
DOIs	https://doi.org/10.2517/2017PR016
Publication status	Published - 2018 Apr

Keywords

Crocodylidae
East Asia
Pleistocene
Taiwan
Toyotamaphimeia machikanensis

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Palaeontology

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title = "The Rediscovery and Taxonomical Reexamination of the Longirostrine Crocodylian from the Pleistocene of Taiwan",

abstract = "A partial crocodylian skull was found among the paleontological collection at the Archaeological Museum, Waseda University in Honjo-shi, Saitama Prefecture. Following a bibliographical survey, this was verified as a specimen reported by Tokunaga as the first known crocodile from Taiwan but then regarded as lost due to World War II. Molten glass debris is attached to the specimen, suggesting that it had been subject to air raids during World War II in May 1945, most likely at the Waseda University campus. Based on its largest seventh maxillary alveoli and the prominent lateral expansion towards the posterior direction, this specimen was identified as Toyotamaphimeia sp.; up to now a single species under this genus has been reported. The discovery demonstrates that this crocodylian genus once had a wide geographical distribution during the Pleistocene.",

keywords = "Crocodylidae, East Asia, Pleistocene, Taiwan, Toyotamaphimeia machikanensis",

author = "Ai Ito and Riosuke Aoki and Ren Hirayama and Masataka Yoshida and Hiroo Kon and Hideki Endo",

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AU - Ito, Ai

AU - Aoki, Riosuke

AU - Hirayama, Ren

AU - Yoshida, Masataka

AU - Kon, Hiroo

AU - Endo, Hideki

PY - 2018/4

Y1 - 2018/4

N2 - A partial crocodylian skull was found among the paleontological collection at the Archaeological Museum, Waseda University in Honjo-shi, Saitama Prefecture. Following a bibliographical survey, this was verified as a specimen reported by Tokunaga as the first known crocodile from Taiwan but then regarded as lost due to World War II. Molten glass debris is attached to the specimen, suggesting that it had been subject to air raids during World War II in May 1945, most likely at the Waseda University campus. Based on its largest seventh maxillary alveoli and the prominent lateral expansion towards the posterior direction, this specimen was identified as Toyotamaphimeia sp.; up to now a single species under this genus has been reported. The discovery demonstrates that this crocodylian genus once had a wide geographical distribution during the Pleistocene.

AB - A partial crocodylian skull was found among the paleontological collection at the Archaeological Museum, Waseda University in Honjo-shi, Saitama Prefecture. Following a bibliographical survey, this was verified as a specimen reported by Tokunaga as the first known crocodile from Taiwan but then regarded as lost due to World War II. Molten glass debris is attached to the specimen, suggesting that it had been subject to air raids during World War II in May 1945, most likely at the Waseda University campus. Based on its largest seventh maxillary alveoli and the prominent lateral expansion towards the posterior direction, this specimen was identified as Toyotamaphimeia sp.; up to now a single species under this genus has been reported. The discovery demonstrates that this crocodylian genus once had a wide geographical distribution during the Pleistocene.

KW - Crocodylidae

KW - East Asia

KW - Pleistocene

KW - Taiwan

KW - Toyotamaphimeia machikanensis

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The Rediscovery and Taxonomical Reexamination of the Longirostrine Crocodylian from the Pleistocene of Taiwan

Abstract

Keywords

ASJC Scopus subject areas

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