Bibliographic Information
- Other Title
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- ホッカイドウ オビラチョウ タップ チイキ ニ オケル ハクアキ 2マイガイ
- Size-frequency distribution and fossil occurrence of a Cretaceous bivalve Inoceramus hobetsensis from Tappu area, Hokkaido
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Abstract
Size-frequency distribution and mode of occurrence of a Late Cretaceous inoceramid bivalve Inoceramus hobetsensis NAGAO & MATSUMOTO, 1939 were examined. A large number of samples, all of which were recovered from the Upper Cretaceous of the Tappu area, northwestem Hokkaido, show chronological change in the size-frequency distribution pattern. The proportion of the frequency of relatively small individuals (20-40 cm in size) tends to increase toward the upper sequence of the range of this species. The relative frequency of huge individuals (60-80 cm in size) also increases in the upper part, although the mode of fossil occurrence indicates that the size-frequency distribution might be biased by post-mortem taphonomic processes. The result of this study suggests change through time in the characteristics of the growth curve and/or mortality of this species.
Journal
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- 静岡大学地球科学研究報告
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静岡大学地球科学研究報告 25 1-8, 1998-07
静岡大学地球科学教室
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Details 詳細情報について
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- CRID
- 1390290699779460992
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- NII Article ID
- http://ci.nii.ac.jp/naid/110000413382
- 110000413382
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- NII Book ID
- AN00103190
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- HANDLE
- 10297/355
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- NDL BIB ID
- 4559304
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- ISSN
- 03886298
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- Abstract License Flag
- Allowed