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Xestagnostus
Taxonomy
Xestagnostus was named by Opik (1967) [Sepkoski's age data: Cm Dres-l Sepkoski's reference number: 16]. It is not extant. Its type is Xestagnostus legirupa.
It was assigned to Diplagnostidae by Whittington et al. (1997); and to Agnostida by Sepkoski (2002).
It was assigned to Diplagnostidae by Whittington et al. (1997); and to Agnostida by Sepkoski (2002).
Species
X. legirupa (type species), X. transversus
Synonymy list
Year | Name and author |
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1967 | Xestagnostus Opik |
1997 | Xestagnostus Whittington et al. p. 371 |
2002 | Xestagnostus 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. †Xestagnostus Opik 1967
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†Xestagnostus legirupa Opik 1967
†Xestagnostus transversus Lu and Lin 1989
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: f = family, o = order | |||||
References: Kiessling 2004, Hendy 2009 |