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Semicoscinium
Taxonomy
Semicoscinium was named by Prout (1859) [Sepkoski's age data: S Ldov C Vise-l Sepkoski's reference number: 742,1241]. It is not extant.
It was assigned to Fenestellidae by Bassler (1953); to Fenestrata by Sepkoski (2002); and to Semicosciniidae by Ernst et al. (2011).
It was assigned to Fenestellidae by Bassler (1953); to Fenestrata by Sepkoski (2002); and to Semicosciniidae by Ernst et al. (2011).
Species lacking formal opinion data
Synonyms
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Synonymy list
Year | Name and author |
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1859 | Semicoscinium Prout |
1953 | Semicoscinium Bassler p. G126 |
2002 | Cyclopelta Sepkoski |
2002 | Semicoscinium Sepkoski |
2011 | Semicoscinium Ernst et al. p. 322 |
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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.
Diagnosis
Reference | Diagnosis | |
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A. Ernst et al. 2011 | Reticulate funnel-shaped colonies consisting of sinusoid, relatively wide and thick branches jointed by wide and short dissepiments, or fused together by anasto- moses. Autozooecia arranged in two rows on the branches, opening onto outer surface of the cone. High median keel widening apically. Vesicular skeleton (kenozooecia) often developed. Autozooecial chambers rectangular in mid- tangential section, short and relatively high, with mod- erately short vestibules. Axial wall straight to slightly sinusoid, projecting in the median keel. Hemisepta absent. Heterozooecia represented by brood chambers in orm of roughly rounded voids (?enlarged zooecia), situated preferably near dissepiments. |
Measurements
No measurements are available
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Source: c = class, p = phylum, uc = unranked clade | |||||
References: Kiessling 2004, Nesnidal et al. 2013, Smith et al. 2006 |
Collections (65 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Llandovery | Canada (Ontario) | S. sp. (446) | |
Llandovery | Russian Federation (Yakutiya) | S. pyramidatum, S. fragile (79514) S. pyramidatum, S. ordovicuum, S. fragile (79513) | |
Llandovery | USA (New York) | S. sp. (452 463) S. tenuiceps (77054) | |
Llandovery - Wenlock | USA (New York) | S. tenuiceps (13045) | |
Aeronian | USA (New York) | S. tenuiceps (81827 81841 81868) | |
Telychian | USA (New York) | S. tenuiceps (77053 81871 81911 81913 82504 82516 83097) | |
Telychian | Russian Federation (Yakutiya) | S. sp. (79394) | |
Niagaran | USA (Ohio) | S. sp. (475) | |
Sheinwoodian | USA (New York) | S. tenuiceps (81907 81908 82502 82511 82545) | |
Wenlock | USA (New York) | S. sp. (541) S. tenuiceps (13052 13053 13054 81782 81783 81804 81805 81813) | |
Pridoli | China (Jilin) | S. sp. (27749) | |
Pragian | Czech Republic | Cyclopelta sacculus (83394 229068) | |
Pragian | France (Bretagne) | S. sp. (81603) | |
Pragian | Russian Federation (Arkhangel'skaya Oblast') | S. cyvolkoi (40700) S. tuberculatus (40701) | |
Pragian | Vietnam | S. rackovsii (83241) | |
Pragian | New Zealand | S. sp. (77223) | |
Early/Lower Emsian | Russian Federation (Arkhangel'skaya Oblast') | S. granulatus (40703) | |
Emsian - Eifelian | Spain | S. sp., S. rhombicum (144642) | |
Emsian - Frasnian | Mongolia | S. alticlavatum (46036) S. alticlavatum, S. humiliclavatum (46037) S. humiliclavatum (46142) | |
Late/Upper Emsian | Russian Federation (Arkhangel'skaya Oblast') | S. granulatus (40706) | |
Eifelian | Mongolia | S. ubensis (79689) | |
Eifelian | Canada (Ontario) | S. graniferum (3846) S. sp. (3845) | |
Givetian | USA (Michigan) | S. sp. (38475) | |
Givetian | Poland (Swietokrzyskie) | S. sp. (161475) | |
Givetian | China (Heilongjiang) | S. delicatum, S. kirinensis (25874) S. sp. (25873) S. striatum (25871) S. striatum, S. thyrene, S. megafenestella (25872) | |
Givetian | USA (Ohio) | S. sp. (38457 38463 38465) | |
Givetian - Frasnian | Mongolia | S. alticlavatum, S. humiliclavatum (46034 46035) S. hastatum (46038) | |
Frasnian | Colombia (Boyaca) | S. colombiensis, S. minutum (36012) | |
Late/Upper Givetian | Western Sahara | S. sp. (81292) | |
Late/Upper Givetian | Morocco | S. sp. (144442) |