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Acanthoclema
Taxonomy
Acanthoclema is a genus. It is not extant.
It was assigned to Rhabdomesidae by Bassler (1953); to Nikiforovellidae by Zimmerman and Cuffey (1987); and to Cryptostomata by Sepkoski (2002).
It was assigned to Rhabdomesidae by Bassler (1953); to Nikiforovellidae by Zimmerman and Cuffey (1987); and to Cryptostomata by Sepkoski (2002).
Species lacking formal opinion data
Synonymy list
Year | Name and author |
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1953 | Acanthoclema Bassler p. G131 |
1987 | Acanthoclema Zimmerman and Cuffey figs. Table 1 |
2002 | Acanthoclema 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. †Acanthoclema
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: c = class, p = phylum, uc = unranked clade | |||||
References: Kiessling 2004, Smith et al. 2006, Nesnidal et al. 2013 |
Collections (56 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Llandovery | USA (New York) | A. asperum (77054) A. sp. (459 463) | |
Telychian | USA (New York) | A. asperum (77053 83097) | |
Niagaran | USA (New York) | A. aspera (22817) | |
Sheinwoodian | USA (New York) | A. asperum (82584 82585 82598 83095) | |
Wenlock | USA (New York) | A. asperum (81813 81840 81920 82501) A. sp. (472 541) | |
Emsian | Spain | A. irregularis (144339) | |
Emsian - Eifelian | Spain | A. parvula (144653 144657 144658 144660 144736) | |
Eifelian | Germany | A. distilum (143797 143799 144084 144787) A. parvula (144943) A. sp. (25364 25365 144096) | |
Cazenovian | USA (Ohio) | A. ohioensis (188935) | |
Givetian | Poland (Swietokrzyskie) | A. sp. (161475) | |
Givetian | Morocco | A. triangularis (144324) | |
Givetian | Germany | A. distilum (143798 144085 144098) A. elegantula (144092) A. sp. (144093) | |
Givetian | France | A. distilus (38681 38683) | |
Givetian | USA (Ohio) | A. ohioensis (38463) A. ohioensis, A. lineatum (38465) A. ohioensis, A. lineatum, A. sulcatum (38457 38459 38460) A. ohioensis, A. sulcatum (38461 38464) | |
Givetian | USA (Michigan) | A. ohioensis (38475 38476) | |
Late/Upper Givetian | Spain | A. triangularis (144594) | |
Late/Upper Givetian | Morocco | A. triangularis (144442 144587 144589 144590) | |
Late/Upper Givetian | Western Sahara | A. sp. (81292) | |
Roadian | USA (Texas) | A. sp. (102621) |