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Comparison of Cutting Ability Between Serrated and Non-serrated Fossil Shark Teeth Result of the Special Exhibition "The Shark" Related to Educational Program Hajime TARU Keywords shark tooth, serration, Carcharodon carcharias, Carcharodon megalodon, Otodus obliquus Bull. Kanagawa prefect. Mus. (Nat. Sci.), no.33, pp. 61-66, Mar. 2004 (Compagno, 1984a; b) 2001 12 2002 3 G. R. G. R. 2003 1 12 , 2002; , 2002; , 2002; , 2002; , 2002 (2002)

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Comparison of Cutting Ability Between Serrated and Non-serrated Fossil Shark TeethResult of the Special Exhibition "The Shark" Related to Educational Program

Hajime TARU

Keywords shark tooth, serration, Carcharodon carcharias, Carcharodon megalodon,Otodus obliquus

Bull. Kanagawa prefect. Mus. (Nat. Sci.), no.33, pp. 61-66, Mar. 2004

(Compagno, 1984a; b)

2001 122002 3

G. R. G. R.

2003 1 12

, 2002; , 2002; , 2002; ,2002; , 2002

(2002)

H. Taru62

(Carcharodon megalodon)Otodus obliquus

(Carcharodoncharcarias) 1

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Comparison of Cutting Ability Between Serrated and Non-serrated Fossil Shark Teeth 63

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Comparison of Cutting Ability Between Serrated and Non-serrated Fossil Shark Teeth 65

3. . , : Otdus obliquus

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(1998) (2003) (2003)

(2003)

1 1

Abler (1992) ホオジロザメ ムカシオオホオジロザメ オトダス

○ 20 11 5

× 3 9 16

○ 20 12 7

× 4 10 15○:切れ味がよかった,×:切れ味が悪かった

肉(鶏肉)

魚(マアジ)

H. Taru66

2004 1 7 2004 1 15 .

Abler, L. William 1992. The serrated teeth of tyrannosaurid

dinosaurs, and biting structures in other animals. Paleobiology,

18: 161-183.

Compagno, L. J. V., 1984a. FAO Species Catalogue: Vol. 4,

Sharks of The World: Part 1. FAO, i-viii+249pp, Rome.

Compagno, L. J. V., 1984b. FAO Species Catalogue: Vol. 4,

Sharks of The World: Part 2. FAO, i-x+250-650, Rome.

, 2002. .

, , 43,

.

, 2002. . ,

, 43,

, .

, 2003.

. , 231pp. .

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45p. , .

, 2002, .

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31-36. , .

, 1998. ? . 223pp.

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