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Arthroacantha
Taxonomy
Arthroacantha was named by Wlliams (1883) [Sepkoski's age data: D Emsi-l D Fras]. It is not extant.
It was assigned to Hexacrinitidae by Ubaghs et al. (1978); and to Monobathrida by Sepkoski (2002).
It was assigned to Hexacrinitidae by Ubaghs et al. (1978); and to Monobathrida by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1883 | Arthroacantha Wlliams |
| 1886 | Arthracantha Hinde |
| 1936 | Arthracantha Goldring |
| 1978 | Arthroacantha Ubaghs et al. p. T475 |
| 2002 | Arthroacantha 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. †Arthroacantha Wlliams 1883
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Invalid names: Arthracantha Hinde 1886 [nomen vanum]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Kiessling 2004, Aberhan 1992 | |||||
Age range: base of the Early/Lower Emsian to the top of the Givetian or 410.62000 to 382.31000 Ma
Collections (19 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Devonian | USA (New York) | Arthracantha ithacensis (123539) | |
| Early/Lower Emsian | Czechia | A. vega (14137) | |
| Early/Lower Emsian | Germany (Gemuenden) | A. claviger (26903) | |
| Emsian | Germany (North Rhine-Westphalia) | A. ithacensis (235091) | |
| Emsian | South Africa | A. sp. (35578) | |
| Eifelian - Givetian | Canada (Ontario) | A. carpenteri (75583) | |
| Middle Devonian | USA (New York) | A. carpenteri (91091 91216) | |
| Middle Devonian | Canada (Ontario) | A. carpenteri (193694) | |
| Givetian | USA (Michigan) | A. carpenteri (38475) | |
| Givetian | USA (Indiana) | A. carpenteri (66002) | |
| Givetian | USA (Maryland) | A. punctobrachiata (10453) | |
| Givetian | USA (Ohio) | A. carpenteri (38457 38458 38459 38460 38462 38463 38464) |