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Helopora

Stenolaemata - Cryptostomata - Arthrostylidae

Taxonomy
Helopora was named by Hall (1851). Its type is Helopora fragilis.

It was assigned to Arthrostylidae by Bassler (1911), Bassler (1953) and Ross (1963); and to Cryptostomata by Sepkoski (2002).

Species
H. divaricata, H. fragilis (type species)

Synonymy list
YearName and author
1851Helopora Hall
1911Helopora Bassler
1953Helopora Bassler p. G128
1963Helopora Ross
2002Helopora Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
—Lophophorata
RankNameAuthor
phylumBryozoaEhrenberg 1831
classStenolaemataBorg 1926
orderCryptostomataVine 1884
suborderRhabdomesinaAstrova and Morozova 1956
familyArthrostylidaeUlrich 1882
genusHeloporaHall 1851

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. †Helopora Hall 1851
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†Helopora divaricata Ulrich 1893
†Helopora fragilis Hall 1851
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Environment: marineuc
Locomotion: stationaryc
Attached: yesc
Life habit: epifaunalp
Diet: suspension feederc
Vision: blindc
Created: 2007-09-18 02:11:14
Modified: 2010-02-15 07:19:29
Source: c = class, p = phylum, uc = unranked clade
References: Nesnidal et al. 2013, Kiessling 2004, Smith et al. 2006

Age range: base of the Middle Ordovician to the top of the Cazenovian or 470.00000 to 383.70000 Ma

Collections (113 total)


Time interval Ma Country or state Original ID and collection number
Middle Ordovician470.0 - 458.4USA (New York) H. sp. (334)
Chazyan470.0 - 457.3USA (Vermont) H. sp. (172671 172754)
Chazyan470.0 - 457.3Canada (Northwest Territories) H. sp. (315) H. spp. (24621)
Caradoc458.4 - 449.5USA (Tennessee) H. sp. (80105 80106 80107 80108 80594 80597)
Caradoc458.4 - 449.5USA (Georgia) H. sp. (32779 32783 32787 32791 32798) H. spiniformis (32880 32881 32882 33065 33103 33104 33105 33106 33107)
Kukruse458.0 - 456.8Estonia (Ida-Viru) H. divaricata (167471)
Blackriveran457.3 - 449.6Canada (Northwest Territories) H. sp. (24628 24631)
Blackriveran457.3 - 449.6USA (Tennessee) H. spiniformis (5328 5329 5331)
Blackriveran - Rocklandian457.3 - 449.6Canada (Northwest Territories) H. sp. (24634)
Rocklandian457.3 - 449.6USA (Minnesota) H. divaricata (167594)
Wildernessian457.3 - 449.6Canada (Northwest Territories) H. sp. (26949 26951)
Chatfieldian453.8 - 451.0USA (New York) H. sp. (433)
Edenian - Maysvillian451.0 - 449.6Canada (Northwest Territories) H. sp. (26942 26943)
Kralodvorian - Rawtheyan449.8 - 445.2Spain (Sevilla) H. sp. (20929)
Richmondian449.6 - 445.5USA (Ohio) H. sp. (367)
Richmondian449.6 - 445.5USA (Indiana) H. sp. (377)
Richmondian - Ashgill449.6 - 443.7USA (Ohio) H. sp. (392 393 394)
Rhuddanian443.4 - 440.8Canada (Ontario) H. fragilis (173224) H. sp. (26776)
Rhuddanian - Aeronian443.4 - 438.5Russian Federation (Siberia) H. limata, H. spiralis (206542) H. spiralis (206560)
Llandovery443.4 - 433.4Canada (Ontario) H. sp. (444 446)
Llandovery443.4 - 433.4USA (New York) H. sp. (443 449 450 451 452)
Llandovery443.4 - 433.4Russian Federation (Siberia) H. spiralis (206317 206319)
Llandovery443.4 - 433.4India H. fragilis (144042)
Aeronian440.8 - 438.5USA (New York) H. fragilis (81827 81829 81831 81863 81865 81868 81869 81893 81903 82525 82527 82532 82540 82542 82543 82544 82547 82548 82549) H. ragilis (81896) H. sp. (26777)
Aeronian - Telychian440.8 - 433.4USA (New York) H. fragilis (81826 81872 81899 81900 81901 82570)
Telychian438.5 - 433.4United Kingdom (Scotland) H. sp. (23299 23301 23302)
Telychian438.5 - 433.4Sweden H. lindstromi (77409)
Telychian438.5 - 433.4USA (New York) H. fragilis (81915 82504 82506 82516 82518 82546 82569)
Sheinwoodian433.4 - 430.5Sweden (Gotland) H. lindstromi (13591)
Ludlow427.4 - 423.0China (Yunnan) H. sp. (27796)
Ludlow427.4 - 423.0Belarus H. sp. (23658)
Cazenovian391.9 - 383.7USA (Ohio) H. inexspectata (188935)
Givetian387.7 - 382.7USA (Michigan) H. inexpectata (38475 38476)
Givetian387.7 - 382.7USA (Ohio) H. inexpectata (38457 38459 38461 38462 38463 38464 38466)
Givetian387.7 - 382.7USA (Indiana) H. inexpectata (55670 55761 65999 66003)