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Digonus
Taxonomy
Digonus was named by Guerich (1909) [Sepkoski's age data: D Gedi-l D Emsi-u Sepkoski's reference number: 902,1106]. It is not extant.
It was reranked as Homalonotus (Digonus) by Pillet (1961); it was reranked as Burmeisteria (Digonus) by Berry and Boucot (1973).
It was assigned to Homalonotus by Pillet (1961); to Burmeisteria by Berry and Boucot (1973); to Homalonotidae by Jell and Adrain (2002); to Phacopida by Sepkoski (2002); and to Homalonotinae by Thomas (1977), Bault et al. (2021).
It was reranked as Homalonotus (Digonus) by Pillet (1961); it was reranked as Burmeisteria (Digonus) by Berry and Boucot (1973).
It was assigned to Homalonotus by Pillet (1961); to Burmeisteria by Berry and Boucot (1973); to Homalonotidae by Jell and Adrain (2002); to Phacopida by Sepkoski (2002); and to Homalonotinae by Thomas (1977), Bault et al. (2021).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1909 | Digonus Guerich |
| 1961 | Homalonotus (Digonus) Pillet |
| 1973 | Burmeisteria (Digonus) Berry and Boucot |
| 1977 | Digonus Thomas p. 168 |
| 2002 | Digonus Jell and Adrain p. 366 |
| 2002 | Digonus Sepkoski |
| 2021 | Digonus Bault et al. pp. Appendix 7 |
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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. †Digonus Guerich 1909
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†Burmeisteria (Digonus) noticus Clarke 1913
†Digonus comes Chlupac 1981
†Digonus roemeri de Koninck 1876
†Digonus zemmourensis Pillet 1961
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Hendy 2009 | |||||
Collections (30 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Pridoli - Helderbergian | Algeria | Homalonotus roemeri (27210) | |
| Gedinnine | Spain (León) | D. roemeri (234796) | |
| Gedinnine | Spain | D. roemeri (234795) | |
| Lochkovian | Ukraine | Homalonotus roemeri (23362) | |
| Lochkovian | Algeria | D. rudesdorfensis, Burmeisteria zemmourensis, Homalonotus roemeri (27473) Homalonotus roemeri (27171 27183) | |
| Lochkovian | Bolivia (La Paz) | Burmeisteria noticus (37052) | |
| Lochkovian | Morocco | D. sp. A (13938) D. sp., D. zemmourensis (13936) Homalonotus roemeri (27386 27467) | |
| Early/Lower Devonian | Antarctica | Burmeisteria antarcticus (35561 35563 35564 35565) | |
| Pragian | Poland | D. elegans (146009) D. sp. (145999) | |
| Pragian | Algeria | Homalonotus roemeri (27172) | |
| Pragian | Czechia (Moravia) | D. comes (25092) | |
| Emsian | South Africa | Burmeisteria notica (35578 35581 35584) | |
| Emsian | New Zealand | Burmeisteria expansus (40522 40525) | |
| Emsian - Eifelian | Ghana | Burmeisteria accraensis (35605) | |
| Late/Upper Emsian | Luxembourg | D. intermedius (232220 232281 233203) | |
| Eifelian | South Africa | Burmeisteria notica (35593) |