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Brachyelasma

Anthozoa - Stauriida - Streptelasmatidae

Taxonomy
Brachyelasma was named by Lang et al. (1940).

It was synonymized subjectively with Streptelasma by Neuman (1969).

It was assigned to Streptelasmidae by Kaljo (1956); to Streptelasmatinae by Hill (1956); and to Streptelasmatidae by Kaljo (1958), Reiman (1958), Merriam (1973).

Synonymy list
YearName and author
1940Brachyelasma Lang et al.
1956Brachyelasma Hill
1956Brachyelasma Kaljo
1958Brachyelasma Kaljo
1958Brachyelasma Reiman
1973Brachyelasma Merriam p. 31

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RankNameAuthor
kingdomAnimalia()
phylumCnidariaHatschek 1888
classAnthozoaEhrenberg 1834
—Hexacorallia()
subclassRugosa(Milne-Edwards and Haime 1850)
RankNameAuthor
orderStauriidaVerrill 1865
suborderStreptelasmatinaWedekind 1927
familyStreptelasmatidae(Nicholson 1889)
genusBrachyelasmaLang et al. 1940

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. †Brachyelasma Lang et al. 1940
show all | hide all
†Brachyelasma altaica Tcherepnina 1960
†Brachyelasma bassleri Pestana 1960
†Brachyelasma concava Kaljo 1956
†Brachyelasma cylindricum Troedsson 1928
†Brachyelasma duncani Dybowski 1873
†Brachyelasma estonica Dybowski 1873
†Brachyelasma estonicum Dybowski 1873
†Brachyelasma fervida Kaljo 1958
†Brachyelasma radiata Scheffen 1933
Diagnosis
ReferenceDiagnosis
C. W. Merriam 1973Trochoid-ceratoid solitary rugose corals lacking dissepiments and having subhorizontal, straight, or slightly arched tabulae, some of which are complete. Tabulae bent downward as they approach the wall. Major septa not meeting the axis, though commonly extending more than half that distance. Minor septa short. Septal stereozone narrow. A fossula recognizable in some species.
Measurements
No measurements are available
Composition: low Mg calciteo
Locomotion: stationaryo
Attached: yeso
Life habit: epifaunalo
Diet: suspension feedero
Vision: blindc
Created: 2004-02-27 16:55:09
Modified: 2004-02-28 16:53:57
Source: o = order, c = class
Reference: Kiessling 2004

Age range: base of the Soudleyan to the top of the Wenlock or 458.20000 to 426.70000 Ma

Collections (36 total)


Time interval Ma Country or state Original ID and collection number
Soudleyan - Marshbrookian458.2 - 454.0China (Shaanxi) B. sp. (8533)
Sandbian458.2 - 452.8Russian Federation (Siberia) Grewingkia altaica (205559)
Caradoc458.2 - 449.5USA (California) B. bassleri (219306)
Oandu - Keila452.8 - 452.8Estonia B. cylindricum (174108)
Oandu452.8 - 451.8Estonia B. concava (168713)
Oandu452.8 - 451.8Estonia (Saare) B. concava, B. fervida (174088)
Katian - Hirnantian452.8 - 443.1Russian Federation (Siberia) Grewingkia altaica (205662)
Pirgu449.5 - 445.2Estonia (Lääne) B. duncani (174087)
Ashgill449.5 - 443.1Mongolia Grewingkia altaica (79586 79587 79594)
Hirnantian445.2 - 443.1China (Guizhou) B. sp. (169260)
Hirnantian445.2 - 443.1China B. sp. (61382 61383)
Juuru443.1 - 440.8Estonia B. estonicum (174161 174162 174163 174164 174165 174166 174167)
Llandovery443.1 - 432.9Russian Federation (Siberia) B. sibiricum, B. siluriense (206319)
Llandovery443.1 - 432.9China (Guizhou) B. sp. (25869 27898)
Aeronian440.5 - 438.6China B. sp. (61431)
Aeronian - Telychian440.5 - 432.9China (Guizhou) B. sp. (27789)
Telychian438.6 - 432.9Russian Federation (Tuva) B. sp. (78713)
Telychian438.6 - 432.9China (Hubei) B. sp. (27779)
Telychian438.6 - 432.9China B. sp. (27773)
Telychian438.6 - 432.9China (Yunnan) B. sibiricum (27850) B. sp. (27851)
Wenlock432.9 - 426.7USA (California) B. sp. (225993) B. sp. B (225990 225999 226643 226644)