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Welleraspis
Taxonomy
Welleraspis was named by Kobayashi (1935). Its type is Liostracus jerseyensis.
It was assigned to Lonchocephalidae by Westrop (1992); to Catillicephalidae by Jell and Adrain (2002); and to Asaphida by Sepkoski (2002).
It was assigned to Lonchocephalidae by Westrop (1992); to Catillicephalidae by Jell and Adrain (2002); and to Asaphida by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1935 | Welleraspis Kobayashi |
| 1940 | Avonaspis Lochman |
| 1992 | Welleraspis Westrop |
| 2002 | Welleraspis Jell and Adrain p. 459 |
| 2002 | Welleraspis 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. †Welleraspis Kobayashi 1935
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†Welleraspis jerseyensis Weller 1990
†Welleraspis newfoundlandensis Lochman 1938
Invalid names: Avonaspis Lochman 1940 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Aberhan et al. 2004, Hendy 2009, Whittington et al. 1997 | |||||
Age range: base of the Guzhangian to the top of the Dresbachian or 500.50000 to 486.85000 Ma
Collections (22 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Menevian | Greenland (Peary Land) | W. newfoundlandensis (49482 49484) | |
| Menevian | USA (South Dakota) | W. group #1, W. group #2 (8273) W. spp. (8241 8272 8275 8279) | |
| Marjumian | Greenland (Peary Land) | W. newfoundlandensis (49435 49449 49453 49483) | |
| Marjumian | USA (Missouri) | W. jerseyensis (214844) | |
| Marjumian | Canada (Newfoundland) | W. sp. (195678 196026 196375) | |
| Menevian - St Davids | USA (South Dakota) | W. spp. (8199) | |
| Guzhangian | Canada (Newfoundland) | W. newfoundlandensis (198256) | |
| Dresbachian | Canada (Yukon) | W. torontoria (55224 55277 55278) | |
| Late/Upper Cambrian | Canada (Newfoundland) | W. sp. (196376) | |
| Merioneth | USA (Pennsylvania) | W. newfoundlandensis (77696) |