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Micragnostus
Taxonomy
Micragnostus was named by Howell (1935) [Sepkoski's age data: Cm Dres-u O Llvi-l Sepkoski's reference number: 16,721,1066]. It is not extant. Its type is Agnostus calvus.
It was reranked as Geragnostus (Micragnostus) by Lu and Lin (1980).
It was assigned to Geragnostus by Lu and Lin (1980); to Agnostidae by Whittington et al. (1997) and Bao and Jago (2000); and to Agnostida by Sepkoski (2002).
It was reranked as Geragnostus (Micragnostus) by Lu and Lin (1980).
It was assigned to Geragnostus by Lu and Lin (1980); to Agnostidae by Whittington et al. (1997) and Bao and Jago (2000); and to Agnostida by Sepkoski (2002).
Species
Geragnostus (Micragnostus) acrolebes, Geragnostus (Micragnostus) bilobus, Geragnostus (Micragnostus) chengcunensis, M. brevispinus, M. calviformis, M. calvus, M. chiushuensis, M. curvata, M. elongatus, M. insolitus, M. intermedius, M. mutabilis, M. orientalis, M. quadratiformis, M. serus, M. strictus, M. vilonii
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1935 | Micragnostus Howell |
| 1980 | Geragnostus (Micragnostus) Lu and Lin |
| 1997 | Micragnostus Whittington et al. p. 342 |
| 2000 | Micragnostus Bao and Jago pp. 887. 890 |
| 2002 | Micragnostus 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. †Micragnostus Howell 1935
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†Geragnostus (Micragnostus) acrolebes Shergold 1971
†Geragnostus (Micragnostus) bilobus Qiu 1984
†Geragnostus (Micragnostus) chengcunensis Qiu 1984
†Micragnostus brevispinus Lermontova 1951
†Micragnostus calviformis Harrington and Leanza 1957
†Micragnostus calvus Lake 1906
†Micragnostus chiushuensis Kobayashi 1931
†Micragnostus curvata Robison and Pantoja-Alor 1968
†Micragnostus elongatus Chien 1961
†Micragnostus insolitus Grant 1965
†Micragnostus intermedius Palmer 1968
†Micragnostus mutabilis Ergaliev 1980
†Micragnostus orientalis Lu and Lin 1980
†Micragnostus quadratiformis Ergaliev and Ergaliev 2008
†Micragnostus serus Fortey 1980
†Micragnostus strictus Sun 1989
†Micragnostus vilonii Harrington and Leanza 1957
Diagnosis
No diagnoses are available