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Ribs of Hydrodamalis (TOYA-Fo-7355) from Zukawa Formation, Toyama Prefecture, Japan (Photos)

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posted on 2024-10-06, 23:57 authored by Kazuo Nagasawa, Masui Hamuro, Toshikazu Hamuro, Teruo Mizukami, Toshio Yasuda, Ken-yu Nakagawa

Photographs of Hydrodamalis fossils from Zukawa Formation, Toyama Prefecture, Japan. 1, proximal part of anterior rib (RB1): 1a, lateral, 1b, proximal or distal cross section, 1c, medial. 2, proximal part of middle rib of right (RB2): 2a, lateral, 2b, proximal, 2c, medial. 3, tubercle of middle rib (RB3):  3a, lateral, 3b, proximal or distal, 3c, anterior or posterior. 4, tubercle of middle rib (RB): 4a, lateral, 4b, anterior or posterior. 5, middle part of middle rib (RB5): 5a, lateral, 5b, proximal, 5c, anterior or posterior. 6, middle part of middle rib (RB6): 6a, lateral, 6b, proximal or distal, 6c, anterior or posterior. 7, proximal part of posterior rib of left (RB7): 7a, lateral, 7b, distal, 7c, medial. 8, distal part of posterior rib (RB8): 8a, lateral, 8b, medial, 8c, distal. 9, middle part of posterior rib (RB9): 9a, medial, 9b, lateral, 9c, proximal or distal. 10, middle part of posterior rib (RB10): 10a, lateral, 10b, anterior or posterior, 10c, proximal or distal. 11, distal part of posterior rib (RB11): 11a, lateral, 11b, distal, 11c, medial. 12, distal part of posterior rib (RB12); 12a, lateral, 12b, proximal, 12c, medial. All scale bars are equal to 5 cm.

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Title (in Japanese)

富山県頭川層産Hydrodamalis(TOYA-Fo-7355)の肋骨(写真)

Description (in Japanese)

富山県頭川層産Hydrodamalis(TOYA-Fo-7355)の肋骨(写真).1,前位肋骨近位部(RB1):1a,外側観,1b,近位または遠位観,1c,内側観.2,右中位肋骨近位部(RB2):2a,外側観,2b,近位観,2c,内側観.3,中位肋骨結節(RB3):3a,外側観,3b,近位または遠位観,3c,前面または後面観.4,中位肋骨結節(RB4):4a,外側観,4b,前面または後面観.5,中位肋骨中位部(RB5):5a,外側観,5b,近位観,5c,前面観または後面観.6,中位肋骨中位部(RB6):6a,外側観,6b,近位または遠位観,6c,前面または後面観.7,左後位肋骨近位部(RB7):7a,外側観,7b,遠位観,7c,内側観.8,後位肋骨遠位部(RB8):8a,外側観,8b,内側面,8c,遠位観.9,後位肋骨中位部(RB9):9a,内側観,9b,外側観,9c,近位または遠位観.10,後位肋骨中位部(RB10):10a,外側観,10b,前面または後面観,10c,近位または遠位観.11,後位肋骨遠位部(RB11):11a,外側観,11b,遠位観,11c,内側面.12,後位肋骨遠位部(RB12):12a,外側観,12b,近位観,12c,内側観.スケールバーは全て5㎝を示す.

Manuscript title (in Japanese)

富山県高岡市頭川層から産出したヒドロダマリス属の海牛化石:日本海を南下した海牛

Authors (in Japanese)

長澤一雄・葉室麻吹・葉室俊和・水上輝夫・安田俊雄 ・中川賢勇

Copyright

© 2024 Palaeontological Society of Japan

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