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Synonymy list
YearName and author
1895Echinozoa von Zittel
1984Echinozoa Squires p. 55
1987Echinozoa Squires p. 72
2001Echinozoa Boczarowski p. 73
2009Echinozoa Webster et al. p. 248

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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.

No diagnoses are available
No measurements are available
Composition: high Mg calcitep
Ontogeny: accretion, addition of partsp
Environment: marinep
Dispersal: waterp
Dispersal 2: planktonicp
Created: 2005-02-03 07:43:57
Modified: 2016-06-02 12:42:19
Source: p = phylum
Reference: Aberhan 1992

Age range

Maximum range based only on fossils: base of the Idavere to the top of the Holocene or 460.90000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 458.4 Ma

Collections (5275 total)

Oldest occurrences

Time interval Ma Country or state Original ID and collection number
Middle Ordovician470.0 - 458.4USA (Oklahoma) Unibothriocidaris bromidensis (201757)
Idavere460.9 - 455.8Estonia (Ida-Viru) Bothriocidaris pahleni (193514)
Idavere460.9 - 455.8Estonia (Harju) Bothriocidaris sp. (197482)
Blackriveran460.9 - 449.5USA (Illinois, Iowa) Bothriocidaris solemi, Neobothriocidaris sp. (23431 23434)
Blackriveran460.9 - 449.5USA (illinois) Bothriocidaris solemi (195626)
Blackriveran460.9 - 449.5USA (Oklahoma) Bothriocidaris sp., Unibothriocidaris sp. (24103) Bromidechinus rimaporus (73277)
Blackriveran - Rocklandian460.9 - 449.5USA (Minnesota) Bothriocidaris solemi, Neobothriocidaris sp. (23400)
Idavere - Johvi460.9 - 449.5Netherlands Bothriocidaris pahleni (192065)
Shermanian460.9 - 449.5USA (Minnesota) Neobothriocidaris templetoni (23403)
Shermanian460.9 - 449.5USA (Illinois, Iowa) Neobothriocidaris templetoni (23470 23471)
Shermanian460.9 - 449.5USA (Illinois) Neobothriocidaris templetoni (195615)
Late/Upper Ordovician458.4 - 443.4Norway Neobothriocidaris pecularis (37808)
Oandu457.5 - 452.0Estonia (Lääne-Viru) Neobothriocidaris sp. (197531 197532 197552)
Oandu457.5 - 452.0Estonia (Rookula) Bothriocidaris sp. (37810)
Johvi457.5 - 449.5Estonia (Harju) Bothriocidaris sp. (197483)
Rawtheyan455.8 - 445.6United Kingdom (Scotland) Neobothriocidaris pecularis, Aulechinus grayae, Ectinechinus lamonti (73134)
Katian453.0 - 445.2China Echinoidea indet. (193284 193285)
Maysvillian452.0 - 449.5USA (Illinois, Iowa) Bothriocidaris maquoketensis (23524)
Nabala452.0 - 449.5Latvia (Daugavpils) Bothriocidaris parvus, Neobothriocidaris sp. (192988)
Vormsi452.0 - 445.6Estonia Neobothriocidaris sp. (159346)