The suprageneric classification of the foraminiferal genus Murrayinella and a new species from Japan

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概要

• 論文の詳細を見る

• Japanese species of the foraminiferal genus Murrayinella have a rotaliid aperture that is defined by a foraminal plate and umbilical coverplate. Our observations suggest that this genus must be transferred from the family Glabratellidae to the family Rotaliidae. Its morphological similarity to the genus Schackoinella, as shown by the presence of a peripheral spine on each chamber, must be a result of homeomorphic convergence. Murrayinella never possesses apertural grooves like those of glabratellids. We give a detailed description of the apertural structure of the Japanese species of Murrayinella and formally describe a new species, M. bellula.

• 日本古生物学会の論文
• 2000-09-29

著者

• Nomura Ritsuo

  Foraminiferal Laboratory Faculty Of Education Shimane University

• TAKAYANAGI YOKICHI

  c

関連論文

• Benthic foraminiferal assemblages in Osaka Bay, southwestern Japan : faunal changes over the last 50 years
• Foraminal structures of some Japanese species of the genera Ammonia and Pararotalia, family Rotaliidae (Foraminifera)
• The suprageneric classification of the foraminiferal genus Murrayinella and a new species from Japan
• Quantification of optically granular texture of benthic foraminiferal walls

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