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Petalaxis

Anthozoa - Stauriida - Petalaxidae

Synonyms
Synonymy list
YearName and author
1852Petalaxis Milne-Edwards and Haime
1983Petalaxis Sando pp. 23 - 25
1984Grootia Yu
1998Petalaxis Bamber and Fedorowski
2002Petalaxis Sepkoski
2007Petalaxis Fedorowski et al. p. 161

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RankNameAuthor
kingdomAnimalia()
phylumCnidariaHatschek 1888
classAnthozoaEhrenberg 1834
Hexacorallia()
RankNameAuthor
subclassRugosa(Milne-Edwards and Haime 1850)
orderStauriidaVerrill 1865
familyPetalaxidaeFomichev 1953
genusPetalaxisMilne-Edwards and Haime 1852

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. †Petalaxis Milne-Edwards and Haime 1852
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Petalaxis allisonae Wilson 1982
Petalaxis baculatus Bamber and Fedorowski 1998
Petalaxis bailliei Nelson 1960
Petalaxis beauchampi Bamber and Fedorowski 1998
Petalaxis belinskiensis Fomichev 1953
Petalaxis besti Wilson 1982
+
Invalid names: Petalaxis kennedyi Wilson 1982 [synonym], Petalaxis pecki Wilson 1982 [synonym]
Petalaxis branisai Wilson 1990
Petalaxis cantabrica de Groot 1963
Petalaxis celadensis de Groot 1963
Petalaxis confertus Kozyreva 1974
Petalaxis crassicolumnus Bamber and Fedorowski 1998
Petalaxis donbassica Fomichev 1939
Petalaxis donetsensis Sando 1983
Petalaxis ellesmerensis Bamber and Fedorowski 1998
Petalaxis elyensis Wilson and Langenheim, Jr. 1962
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Invalid names: Lithostrotionella brokawi Wilson and Langenheim, Jr. 1962 [synonym]
Petalaxis evidens Kozyreva 1974
Petalaxis exiguus Sando 1983
Petalaxis exilis Kozyreva 1974
Petalaxis flexuosus Trautschold 1879
Petalaxis fomichevi Sando 1983
Petalaxis grootae Sando 1983
Petalaxis immanis Kozyreva 1974
Petalaxis intermedius de Groot 1963
Petalaxis ivanovi Dobrolyubova 1935
Petalaxis korkhovae Kozyreva 1974
Petalaxis lisitschanskensis Fomichev 1953
Petalaxis maccoyanus Milne-Edwards and Haime 1851
Petalaxis major de Groot 1963
Petalaxis mirus Kozyreva 1974
Petalaxis mohikanus Fomichev 1939
Petalaxis mokomokensis Easton 1960
Petalaxis monocyclicus de Groot 1963
Petalaxis multilamellatus Bamber and Fedorowski 1998
Petalaxis occidentalis Merriam 1942
Petalaxis orboensis de Groot 1963
Petalaxis parvus Bamber and Fedorowski 1998
Petalaxis perapertuensis de Groot 1963
Petalaxis persubtilis Kozyreva 1974
Petalaxis radians de Groot 1963
Petalaxis santaemariae de Groot 1963
Petalaxis sexangulus de Groot 1963
Petalaxis simplex Hayasaka 1936
Petalaxis stylaxis Trautschold 1879
Petalaxis sutherlandi Wilson 1982
Petalaxis tabulatus Hayasaka 1936
Petalaxis taishakuensis Yokoyama 1957
Petalaxis thorsteinssoni Bamber and Fedorowski 1998
Petalaxis tschucoticus Onoprienko 1976
Petalaxis vesiculosus Dobrolyubova 1935
Petalaxis wagneri de Groot 1963
Petalaxis wyomingensis Sando 1983
Invalid names: Grootia Yu 1984 [synonym]
Diagnosis
ReferenceDiagnosis
W. J. Sando 1983Cerioid colonial corals with tabular to hemispherical growth form. Septa of two ordersĀ·. Major septa thin, ordinarily extending into the tabularium but seldom reaching the columella and ordinarily discon-tinuous or absent in the dissepimentarium, but species with weakly lonsdaleoid dissepimentarium are known. Minor septa absent to well developed. Columella or-dinarily a simple axial plate joined to counter and (or) cardinal septum but composed of axial plate, impersis-tent vertical axial tabellae, and a few axial lamellae in some species. Tabulae complete and incomplete, essen-tially horizontal, flat, concave, or convex, turned up at columella in some species. Peripheral clinotabellae may be present. Dissepimentarium ordinarily lonsdaleoid but may be mostly regular in some species. Increase peripheral and intermural.