2011年8月21日日曜日

魚の分類(12)Stensiö (1921, 1927, 1932, 1936)

ベルグが11番目に示したのがE. A. Stensiöの分類.
一連の論文,Stensiö (1921, 1927, 1932, 1936)をまとめると,以下のような分類になるとしています.

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VERTEBRATA CRANIATA


division I. AGNATHI *1


class OSTRACODERMI (= CYCLOSTOMATA)
 subclass A. PTERASPIDOMORPHI
  order 1. † HETEROSTRACI (COELOLEPIDAE, DREPANASPIDAE, PTERASPIDAE)
  order 2. † PALAEOSPONDYLOIDEA
  order 3. MYXINOIDEA
 subclass B. CEPHALASPIDOMORPHI
  order 1. † OSTEOSTRACI (CEPHALASPIDAE, TREMATASPIDAE)
  order 2. † ANASPIDA
  order 3. PETROMYZONTIA

division II. GNATHOSTOMATA *2


branch I. ELASMOBRANCHII
 sub-branch 1. † ACANTHODII
 sub-branch 2. † PLACODERMI
  group A. † ANTIARCHI
  group B. † ARTHRODIRA (order EUARTHRODIRA, order PHYLLOLEPIDA), † STEGOSELACHII, † RHENANIDA
 sub-branch 3. HOLOCEPHALI
 sub-branch 4. SELACHII
branch II. CHOANATA *3
 sub-branch 1. † CROSSOPTERYGII
 sub-branch 2. DIPNOI
branch IlI. ACTINOPTERYGII
 BRECHIOPTERYGII (POLYPTERIDAE) *4
 CHONDROSTEI, *5 HOLOSTEI, TELEOSTEI

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*1: E. Stensiö. The Downtonian and Devonian Vertebrates of Spitzbergen. Part 1. Family Cephalaspidae. Skrifter om Svalbard og Nordishavet, no. 2, Oslo, 1927, p. 379.
*2: E. Stensiö. On the Placodermi of the Upper Devonian of East Greenland. Meddel. om Grönland, vol. 97, no. 2, 1936, pp. 30-31.
*3: To the Choanata belong, besides, all the Tetrapoda.
*4: E. Stensiö. Triassic fishes from Spitzbergen. Vienna, 1921, p. 147. -- Meddel, om Grönland, vol. 88, no. 3, 1932, p. 74.
*5: On the classification of Chondrostei see E. Stensiö, Meddel. om Grönland, vol. 83, no. 3, 1932, pp. 96-97.

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