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Machaeracanthus
Taxonomy
Machaeracanthus was named by Newberry (1857) [Sepkoski's age data: D Gedi-l D Fras-l Sepkoski's reference number: 455,645]. It is not extant. It is the type genus of Machaeracanthidae.
It was assigned to Ichthyodorulites by Hay (1902); to Acanthoessidae by Jordan (1963); to Acanthodii by Denison (1979); to Acanthodii by Sepkoski (2002); and to Machaeracanthidae by van der Laan (2019), Burrow and Elliott (2023).
It was assigned to Ichthyodorulites by Hay (1902); to Acanthoessidae by Jordan (1963); to Acanthodii by Denison (1979); to Acanthodii by Sepkoski (2002); and to Machaeracanthidae by van der Laan (2019), Burrow and Elliott (2023).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1857 | Machaeracanthus Newberry |
| 1902 | Machaeracanthus Hay p. 331 |
| 1963 | Machaeracanthus Jordan p. 591 |
| 1979 | Machaeracanthus Denison |
| 2002 | Machaeracanthus Sepkoski |
| 2019 | Machaeracanthus van der Laan p. 32 |
| 2023 | Machaeracanthus Burrow and Elliott p. 5 figs. Fig. 3D, E |
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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. †Machaeracanthus Newberry 1857
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†Machaeracanthus archiaci Rouault 1858
†Machaeracanthus bohemicus Barrande 1872
†Machaeracanthus kayseri Kegel 1913
†Machaeracanthus larteti Rouault 1858
†Machaeracanthus longaevus Eastman 1907
†Machaeracanthus major Newberry 1857
†Machaeracanthus peracutus Newberry 1857
†Machaeracanthus polonicus Gurich 1901
†Machaeracanthus retusus Wells 1940
†Machaeracanthus sulcatus Newberry 1857
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, c = class, subp = subphylum | |||||
| References: Carroll 1988, Aberhan et al. 2004, Whittington et al. 1997 | |||||
Age range: base of the Lochkovian to the top of the Late/Upper Givetian or 419.62000 to 382.31000 Ma
Collections (23 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Lochkovian | Czechia | M. bohemicus (231818) | |
| Early/Lower Devonian | Antarctica | M. kayseri (35567) M. sp. (35564) | |
| Early/Lower Devonian | USA (Nevada) | M. sp. (216488 216489) | |
| Pragian | Morocco | M. sp. (208258 208259 208261) | |
| Early/Lower Emsian | Germany | M. peracutus (74300) | |
| Early/Lower Emsian | Germany (Gemuenden) | M. sp. (26903) | |
| Early/Lower Emsian | Morocco | M. peracutus (150334 150360 150361 150365) M. sp., M. peracutus (150363) | |
| Emsian | USA (Wyoming) | M. minor (26176) | |
| Emsian - Eifelian | Brazil (Piaui) | M. sp. (37126) | |
| Late/Upper Emsian | USA (California) | M. sp. (206449) | |
| Eifelian | Brazil (Para) | M. sp. (37137) | |
| Givetian | USA (Michigan) | M. sp. (238762 238765) | |
| Late/Upper Givetian | USA (Nevada) | M. sp. (278048) | |
| Late/Upper Givetian - Early/Lower Frasnian | Venezuela | M. sp. (239502) |