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Urasterellidae
Taxonomy
Urasterellidae was named by Schuchert (1914). It is not extant. Its type is Urasterella. It was considered monophyletic by Dean Shackleton (2005).
It was reranked as the subfamily Urasterellinae by Dean Shackleton (2005).
It was assigned to Urasterellacea by Schuchert (1915); to Asteroidea by Spencer (1918); to Urasterina by Lehmann (1957), Owen (1965); to Uractinida by Blake (1989); to Palasteriscidae by Dean Shackleton (2005); to Uractinina by Spencer and Wright (1966), Blake and Rozhnov (2007); to Asteroidea by Jell and Theron (1999), Blake et al. (2016); and to Hadrosida by Blake (2018), Blake and Koniecki (2020), Müller and Hahn (2022).
It was reranked as the subfamily Urasterellinae by Dean Shackleton (2005).
It was assigned to Urasterellacea by Schuchert (1915); to Asteroidea by Spencer (1918); to Urasterina by Lehmann (1957), Owen (1965); to Uractinida by Blake (1989); to Palasteriscidae by Dean Shackleton (2005); to Uractinina by Spencer and Wright (1966), Blake and Rozhnov (2007); to Asteroidea by Jell and Theron (1999), Blake et al. (2016); and to Hadrosida by Blake (2018), Blake and Koniecki (2020), Müller and Hahn (2022).
Synonymy list
| Year | Name and author |
|---|---|
| 1914 | Urasterellidae Schuchert |
| 1915 | Urasterellidae Schuchert pp. 163, 172 |
| 1918 | Urasterellidae Spencer pp. 127-135 |
| 1957 | Urasterellidae Lehmann pp. 126-127 |
| 1965 | Urasterellidae Owen p. 565 |
| 1966 | Urasterellidae Spencer and Wright p. U71 |
| 1989 | Urasterellidae Blake p. 213 |
| 1999 | Urasterellidae Jell and Theron p. 151 |
| 2005 | Urasterellinae Dean Shackleton p. 97 |
| 2007 | Urasterellidae Blake and Rozhnov p. 523 |
| 2016 | Urasterellidae Blake et al. p. 174 |
| 2018 | Urasterellidae Blake p. 35 |
| 2020 | Urasterellidae Blake and Koniecki p. 8 |
| 2022 | Urasterellidae Müller and Hahn p. 10 |
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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. †Urasterellidae Schuchert 1914
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G. †Anthroosasterias Blake 2017
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†Anthroosasterias huxleyi Billings 1865
†Anthroosasterias stibareus Blake 2017
G. †Bohemaster Jaekel 1923
G. †Pegoasterella Blake and Koniecki 2020
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†Pegoasterella pompom Blake and Koniecki 2020
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Invalid names: Promopalaeaster wilsoni Raymond 1912 [synonym]
G. †Salteraster Stürtz 1893
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†Salteraster acuminatus Simonovitsch 1871
†Salteraster asperrimus Salter 1857
†Salteraster biradialis Withers and Keble 1934
†Salteraster coronella Salter 1857
†Salteraster imbricatus Salter 1865
†Salteraster selwyni McCoy 1874
G. †Ulrichaster Spencer 1950
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†Ulrichaster macrodentatus Jell and Theron 1999
†Ulrichaster ulrichi Schuchert 1915
G. †Urasterella McCoy 1851
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†Urasterella biradialis Withers and Keble 1934
†Urasterella constellata Thorent 1839
†Urasterella creswelli Withers and Keble 1934
†Urasterella gutterfordensis Spencer 1918
†Urasterella inyoensis Stauffer 1930
†Urasterella montana Shchurovskiy 1874
†Urasterella pulchella Billings 1857
†Urasterella ruthveni Forbes 1848
†Urasterella ruthveni leintwardinensis Spencer 1918
†Urasterella thraivensis Spencer 1918
†Urasterella verruculosa Lehmann 1957
Invalid names: Palasteracanthion Stürtz 1886 [synonym], Phillipaster Spencer 1950 [synonym], Protasteracanthion Stürtz 1886 [synonym], Roemeraster Stürtz 1886 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Dean Shackleton 2005 | Loss of aboral ambulacral ridge; ambulacral cross-section rectangular (flat aboral ambulacral profile); loss of adambulacral spines; loss of inferomarginals aboral with respect to adambulacrals. |
Measurements
No measurements are available
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| Source: f = family, c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Aberhan 1992, Blake and Rozhnov 2007 | |||||
Age range: base of the Darriwilian to the top of the Arundian or 469.40000 to 339.90000 Ma
Collections (38 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Volkhov | Russian Federation | Urasterella sp. (91166) | |
| Darriwilian | USA (Nevada) | Meturaster belli (216847) | |
| Caradoc | Canada (Ontario) | Salteraster sp. (64563) | |
| Turinian | Canada (Quebec) | Urasterella pulchella (195625) | |
| Turinian | USA (Oklahoma) | Salteraster grandis, Pegoasterella pompom (211927) | |
| Blackriveran | Canada (Ontario) | Urasterella grandis (55999) | |
| Blackriveran | USA (Illinois, Iowa) | Urasterella sp., Urasterella ulrichi (23431) | |
| Blackriveran | USA (Oklahoma) | Urasterella sp. (24104 73277 195568) Urasterella sp., Salteraster grandis, Promopalaeaster sp. (24103) | |
| Blackriveran | USA (Tennessee) | Salteraster grandis (195670) | |
| Blackriveran - Rocklandian | USA (Illinois, Iowa) | Promopalaeaster wilsoni (23454) | |
| Blackriveran - Rocklandian | USA (Minnesota) | Urasterella sp., Urasterella ulrichi (23400) | |
| Kirkfieldian | USA (Illinois, Iowa) | Promopalaeaster wilsoni (23460) | |
| Rocklandian | USA (Illinois) | Pegoasterella pompom (211925) | |
| Rocklandian - Kirkfieldian | USA (Illinois, Iowa) | Promopalaeaster wilsoni (23457) | |
| Rocklandian - Shermanian | USA (Minnesota) | Promopalaeaster wilsoni (23402) | |
| Katian | Canada (Ontario) | Anthroosasterias huxleyi (192275 192276 211924) | |
| Edenian | USA (Pennsylvania) | Urasterella pulchella (34895) | |
| Edenian - Maysvillian | Canada (Ontario) | Anthroosasterias huxleyi (211923) | |
| Richmondian | USA (Ohio) | Urasterella grandis (5326) Urasterella sp. (395) | |
| Richmondian - Ashgill | USA (Ohio) | Urasterella sp. (392 393 394) | |
| Rawtheyan | United Kingdom (Scotland) | Urasterella thraivensis (73134) | |
| Silurian | USA (California) | Urasterella inyoensis (229253) | |
| Telychian | United Kingdom | Urasterella gutterfordensis (99373 224104) | |
| Leintwardine | United Kingdom | Urasterella ruthveni (95143) | |
| Early/Lower Emsian | Germany | Protasteracanthion primus, Urasterella verruculosa, Urasterella apserula (26904) | |
| Eifelian | South Africa | Ulrichaster macrodentatus (35592 35597) | |
| Carboniferous | USA (Iowa) | Anthroosasterias stibareus (211921) | |
| Chadian - Arundian | USA (Indiana) | Staurasterias elegans (211922) |