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Arthrorhachis
Taxonomy
Arthrorhachis was named by Hawle and Corda (1847).
It was assigned to Metagnostidae by Owen (1981), Ahlberg (1989), Whittington et al. (1997), Hoel (1999); and to Agnostida by Sepkoski (2002).
It was assigned to Metagnostidae by Owen (1981), Ahlberg (1989), Whittington et al. (1997), Hoel (1999); and to Agnostida by Sepkoski (2002).
Species lacking formal opinion data
Synonyms
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Synonymy list
Year | Name and author |
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1847 | Arthrorhachis Hawle and Corda |
1939 | Girvanagnostus Kobayashi |
1981 | Arthrorhachis Owen |
1989 | Arthrorhachis Ahlberg |
1997 | Arthrorhachis Whittington et al. p. 373 |
1999 | Arthrorhachis Hoel |
2002 | Arthrorhachis Sepkoski |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Arthrorhachis Hawle and Corda 1847
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†Arthrorhachis danica proxima Fortey 1980
†Arthrorhachis elliptifrons Tjernvik 1956
†Arthrorhachis mobergi Tjernvik 1956
†Arthrorhachis tardus Barrande 1846
Invalid names: Girvanagnostus Kobayashi 1939 [synonym]
Diagnosis
No diagnoses are available