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Cyathaspididae
Taxonomy
Cyathaspidae was named by Kiaer (1932). Its type is Cyathaspis.
It was corrected as Cyathaspididae by Denison (1963) and Elliott (2016).
It was assigned to Cyathaspidei by Kiaer (1932); to Heterostraci by Denison (1963); to Thelodonti by Marss and Karatajute-Talimaa (2002); to Cyathaspidiformes by Elliott (2016) and Nelson et al. (2016); and to Cyathaspidoidei by Van Der Laan (2019).
It was corrected as Cyathaspididae by Denison (1963) and Elliott (2016).
It was assigned to Cyathaspidei by Kiaer (1932); to Heterostraci by Denison (1963); to Thelodonti by Marss and Karatajute-Talimaa (2002); to Cyathaspidiformes by Elliott (2016) and Nelson et al. (2016); and to Cyathaspidoidei by Van Der Laan (2019).
Subtaxa
Archegonaspis, Boothiaspidinae, Cyathaspis (type genus), Dikenaspis, Eoarchegonaspis, Poraspidinae, Ptomaspis, Vernonaspis
Synonymy list
| Year | Name and author |
|---|---|
| 1932 | Cyathaspidae Kiaer p. 21 |
| 1963 | Cyathaspididae Denison p. 108 |
| 2002 | Cyathaspidae Marss and Karatajute-Talimaa |
| 2016 | Cyathaspididae Elliott p. 1213 |
| 2016 | Cyathaspidae Nelson et al. p. 28 |
| 2019 | Cyathaspidae Van Der Laan p. 17 |
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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.
Fm. †Cyathaspididae Kiaer 1932
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G. †Archegonaspis Jaekel 1927
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†Archegonaspis integer Kunth 1872
†Archegonaspis integer schmidti Gelnitz 1884
†Archegonaspis lindstromi Kiaer 1932
†Archegonaspis ludensis Salter 1859
Subfm. †Boothiaspidinae Elliott 2016
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G. †Boothiaspis Broad 1973
G. †Phyllonaspis Elliott 2016
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†Phyllonaspis laevis Elliott 2016
†Phyllonaspis serratus Elliott 2016
†Phyllonaspis taphensis Elliott 2016
G. †Eoarchegonaspis Kiaer 1932
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†Eoarchegonaspis wardelli Ruedemann 1916
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Invalid names: Cyathaspis vaningeni Bryant 1926 [synonym]
Subfm. †Poraspidinae Kiaer 1932
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G. †Homalaspis Kiaer 1932
G. †Poraspis Kiaer 1932
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†Poraspis barroisi Leriche 1906
†Poraspis brevis Kiaer 1932
†Poraspis cylindrica Kiaer 1932
†Poraspis elongata Kiaer 1932
†Poraspis intermedia Kiaer 1932
†Poraspis magna Kiaer 1932
†Poraspis polaris Kiaer 1932
†Poraspis rostrata Kiaer 1932
†Poraspis sericea Lankester 1873
†Poraspis sturi von Alth 1874
†Poraspis subtilis Kiaer 1932
†Poraspis thomasi Elliott and Petriello 2011
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: subp = subphylum, p = phylum | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Homerian to the top of the Late/Upper Emsian or 430.50000 to 391.90000 Ma
Collections (23 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Silurian | USA (Pennsylvania) | Vernonaspis sp. (12763) | |
| Silurian | Canada (Yukon) | Vernonaspis major, Ptomaspis canadensis, Dikenaspis yukonensis (185831) | |
| Llandovery - Ludlow | USA (New York) | Vernonaspis sp. (12764) | |
| Wenlock - Ludlow | Canada (Nunavut) | Cyathaspis sp. (26882) | |
| Wenlock - Ludlow | Canada (Northwest Territories) | Cyathaspididae indet. (188832 188834) | |
| Homerian | Canada (Northwest Territories) | Vernonaspis sp. (497) | |
| Ludlow | USA (Pennsylvania) | Vernonaspis sp. (14206) | |
| Ludlow | Russian Federation | Archegonaspis sp., Cyathaspididae indet. (90326) | |
| Ludfordian | USA (New York) | Vernonaspis sp. (26085) | |
| Pridoli | Canada (New Brunswick) | Cyathaspis acadica (161318) | |
| Pridoli | USA (New York) | Archegonaspis sp., Vernonaspis sp. (493) | |
| Pridoli | Canada (Nunavut) | Cyathaspididae indet. (14024) | |
| Pridoli | Russian Federation | Cyathaspididae indet. (90328) | |
| Pridoli | United Kingdom (England) | Cyathaspis sp. (26914) | |
| Lochkovian | Russian Federation | Poraspis sp., Poraspis polaris, Poraspididae indet. (90330) | |
| Lochkovian | Canada (Nunavut) | Cyathaspididae indet. (14026 14027) | |
| Lochkovian | Ukraine | Cyathaspis sturi (90350) | |
| Lochkovian | France | Poraspis sp. (26983) | |
| Lochkovian | Norway | Poraspis sp. (26929) | |
| Pragian | Russian Federation | Poraspis sp., Poraspididae indet. (90331) | |
| Late/Upper Emsian | USA (California) | Phyllonaspis taphensis, Cyathaspididae indet. (206449) |