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Agmata
Taxonomy
Agmata was named by Yochelson (1977).
It was reranked as the unranked clade Agmata by Vayda et al. (2025).
It was assigned to Metazoa by Yochelson (1977); and to Cnidaria by Vayda et al. (2025).
It was reranked as the unranked clade Agmata by Vayda et al. (2025).
It was assigned to Metazoa by Yochelson (1977); and to Cnidaria by Vayda et al. (2025).
Subtaxa
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1977 | Agmata Yochelson |
| 2002 | Volborthellida Sepkoski |
| 2025 | Agmata Vayda et al. |
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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.
Unr. †Agmata Yochelson 1977
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G. †Salterella Billings 1861
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†Salterella acervulosa Resser and Howell 1938
†Salterella conulata Clark 1924
†Salterella maccullochi Murchison 1859
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Invalid names: Salterella expansa Poulsen 1927 [synonym], Salterella mexicana Lochman 1952 [synonym], Salterella rugosa Billings 1861 [synonym]
†Salterella pulchella Billings 1861
Fm. †Salterellidae Walcott 1886
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G. †Volborthella Schmidt 1888
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†Volborthella tenuis Schmidt 1888
†Volborthella tenuis bohemicus Prantl 1947
†Volborthella titanius Firby and Durham 1974
Invalid names: Campitius Firby and Durham 1974 [synonym]
Invalid names: Volborthellida [invalid subgroup], Volborthellidae Kiaer 1916 [empty]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range: base of the Atdabanian to the top of the Ashbyan or 521.00000 to 449.60000 Ma
Collections (75 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Caerfai | Canada (Northwest Territories) | Salterella sp. (193) | |
| Early/Lower Cambrian | USA (Virginia) | Salterella conulata (139606 139908 139910) | |
| Early/Lower Cambrian | USA (Pennsylvania) | Salterella conulata (139902 139903 139904 139906 139907) Salterella pulchella (139905) | |
| Early/Lower Cambrian | Norway (Svalbard Archipelago) | Salterella rugosa (176947 176948) | |
| Early/Lower Cambrian | Norway (Svalbard) | Salterella rugosa (176946) | |
| Early/Lower Cambrian | Norway (Mjøsa) | Volborthella tenuis (190138) | |
| Early/Lower Cambrian | Canada (Quebec) | Salterella conulata, Salterella pulchella (139899) Salterella pulchella (139900) | |
| Waucoban | Greenland (Ella Island) | Salterella rugosa (178279) | |
| Waucoban | USA (California) | Campitius titanius (263) | |
| Atdabanian | Norway | Volborthella tenuis (51875) | |
| Atdabanian | Sweden | Volborthella tenuis (9878 9879 9880) | |
| Stage 3 | USA (California) | Salterella sp., Volborthella sp. (276557) | |
| Botomian | Norway (Mjosen) | Volborthella tenuis (42220) | |
| Botomian - Toyonian | USA (Nevada) | Salterella sp. (81004) | |
| Dyeran | Greenland | Salterella maccullochi (49470 49473 67788 67792 67796 67798 67799) Salterella macculochi (49471) | |
| Dyeran | USA (Pennsylvania) | Salterella acervulosa (192 11110 225188 226193) Salterella mccullochi (97879) Salterella sp. (11113 11114) | |
| Dyeran | Canada (Neufundland and Labrador) | Salterella conulata (139901) | |
| Dyeran | USA (California) | Salterella sp. (149697) Volborthella tenuis (9631) | |
| Dyeran | USA (Nevada) | Salterella sp. (7787 8664) | |
| Dyeran | Canada (Newfoundland and Labrador) | Salterella sp. (50783 78747 78748 78749 78750) | |
| Dyeran | Argentina | Salterella maccullochi (176949) | |
| Dyeran | United Kingdom | Salterella maccullochi (176925 176926 176927 176928 176929 176931 176932 176933) | |
| Dyeran | Canada (Labrador) | Salterella sp. (195907) | |
| Dyeran | Mexico | Salterella sp. (10686) Salterella sp., Salterella maccullochi, Salterella pulchella (10684) | |
| Dyeran | Canada (Yukon Territory) | Salterella maccullochi (156210) | |
| Dyeran | USA (Virginia) | Salterella conulata (188 139608) | |
| Stage 4 | USA (Virginia) | Salterella sp. (276561) | |
| Stage 4 | USA (Nevada) | Salterella sp., Volborthella sp. (276558 276559) | |
| Stage 4 | Canada (Yukon) | Salterella sp. (276560) | |
| Toyonian | Greenland | Salterella sp. (8092) | |
| Middle Cambrian | Czechia (Bohemia) | Volbothella tenuis (67775) | |
| Middle Cambrian | Czechia | Volborthella tenuis (199038) | |
| Middle Cambrian | Denmark (Bornholm) | Ellisell yochelsoni (227997) | |
| Drumian | Czechia (Central Boemian) | Volborthella sp. (76456) | |
| Ashbyan | USA (Tennessee) | Salterella billingsi (5327) |