Inozoan calcareous Porifera from the Permian reefs in South China

1989 ◽  
Vol 63 (6) ◽  
pp. 778-800 ◽  
Author(s):  
J. Keith Rigby ◽  
Fan Jiasong ◽  
Zhang Wei
Keyword(s):  
South China ◽  
Growth Form ◽  
Carbonate Platform ◽  
Upper Permian ◽  
General Nature ◽  
Late Paleozoic ◽  
Changxing Formation ◽  
Middle And Upper Permian ◽  
Eastern Sichuan

Inozoans are described from patch reefs on the carbonate platform of eastern Sichuan, from the uppermost Permian Laolongdong reefs in the Changxing Formation (Kazanian–Tatarian) at Beipei, northwest of Chongqing, and from Middle and Upper Permian reefs from the Maokou (Kungurian), Wujiaping (Ufimian), and Changxing Formations at Xiangbo, Longlin County, in northwestern Guangxi. Classification of inozoans, particularly late Paleozoic ones, is still in a state of flux, but genera recognized to date can be keyed using the general nature of the spongocoel, canals, and growth form.New genera described are Intratubospongia, Grossotubenella, Cavusonella, and Radicanalospongia. The new species described are Stellispongia radiata, S. minor, Peronidella beipeiensis, P. regulara, P. parva, Intratubospongia typica, I. tenuiperforata, I. multisi-phonata, I. minima, Grossotubenella parallela, Cavusonella caverna, and Radicanalospongia normala. A Corynella that is not identifiable to species and a sphinctozoan-like inozoan(?) sp. A that has a fibrous-appearing internal skeleton but is poorly preserved are also described. Inozoans and other sponges are major frame-builders in the Permian reefs of South China and our fauna is one of the most diverse late Paleozoic assemblages described to date.

“Hydrozoa” from Middle and Upper Permian reefs of South China

1991 ◽  
Vol 65 (1) ◽  
pp. 45-68 ◽  
Author(s):  
Fan Jiasong ◽  
J. Keith Rigby ◽  
Zhang Wei
Keyword(s):  
New Species ◽  
South China ◽  
Southern China ◽  
Upper Permian ◽  
New Genera ◽  
Frame Building ◽  
Upper Paleozoic ◽  
Middle And Upper Permian ◽  
Eastern Sichuan ◽  
Western Hubei

Abundant “hydrozoans” are important frame-building and accessory organisms in Middle and Upper Permian reefs of southern China, particularly in western Hubei, eastern Sichuan, eastern Yunnan, and northwestern Guangxi. The new genera Radiotrabeculopora, Lichuanopora, and Pseudopalaeoaplysina are described, as are the new species Disjectopora beipeiensis, D. irregulara, Radiotrabeculopora xiangoboensis, R. maokoui, R. elegans, R. reticulata, R. astrorhiza, Balatonia robusta, Lichuanopora bancaoensis, L.(?) regulara, Pseudopalaeoaplysina sinensis, and P. major. The assemblage represents one of the most diverse upper Paleozoic “hydrozoan” assemblages known.

Upper Permian silicified sponges from central Guangxi and western Hubei, South China

1995 ◽  
Vol 69 (2) ◽  
pp. 232-250 ◽  
Author(s):  
J. Keith Rigby ◽  
Fan Jiasong ◽  
Han Nairen
Keyword(s):  
New Species ◽  
Shallow Water ◽  
South China ◽  
Carbonate Platform ◽  
Upper Permian ◽  
Changxing Formation ◽  
Western Hubei ◽  
The Village ◽  
Water Carbonate ◽  
Shallow Water Carbonate

Well-preserved silicified sponges have been recovered from the Upper Permian Changxing Formation at Huangnitang in western Hubei province. The new species Cystauletes grossa and Cystothalamia irregulara are associated with Cystothalamia sp., Colospongia salinaria irregularis Zhang, 1983, Sollasia ostiolata Steinmann, 1882, Virgola? osiensis (de Gregorio, 1930), a questionable inozoan species, and a form questionably referred to the genus Hikorodium? sp. These sponges were detrital fragments that accumulated at the toe of the forereef, at the margin of slope fades and basin fades, at Huangnitang. Amblysiphonella vesiculosa minima Zhang, 1983, is represented in the collections from the Upper Permian Heshan Formation at the village of Guwu, near Heshan City in central Guangxi. Heshan beds that produced the silicified sponges are of Wujiapingian age and accumulated on a normal-marine, shallow-water carbonate platform, or in skeletal shoals within the carbonate platform, and represent a level-bottom community.

Sphinctozoan sponges from the Permian reefs of South China

1989 ◽  
Vol 63 (4) ◽  
pp. 404-439 ◽  
Author(s):  
J. K. Rigby ◽  
Fan Jiasong ◽  
Zhang Wei
Keyword(s):  
New Species ◽  
South China ◽  
Middle Permian ◽  
Upper Permian ◽  
Late Permian ◽  
New Genera ◽  
Patch Reefs ◽  
New Family ◽  
Eastern Sichuan ◽  
New Occurrences

Middle and Late Permian sphinctozoan sponges described here are from the Middle Permian Maokou and the Upper Permian Wujiaping and Changxing Formations. Most are from near Xiangbo, northwestern Guangxi, but a few are from Upper Permain patch reefs from Laolongdong in eastern Sichuan. The new genera, the porateImbricatocoeliaand the aporateGlomocystospongia, are described, the latter as the type genus for the new family Glomocystospongiidae. New species described includeAmblysiphonella specialis, Amblysiphonella spinosa, Amblysiphonellasp. A,Amblysiphonellasp. B,Colospongia maxima, Colospongiasp. A,Imbricatocoelia elongata, I. irregulara, I. obconica, I. paucipora, Neoguadalupia explanata, Subascosymplegma?paracatenulata, Rhabdactinia depressa, R. irregulara, R. squamula, Salzburgia nana, Glomocystospongia gracilis, Sollasia absita, andS. spheroida. New occurrences ofAmblysiphonella merlai? Parona, 1933,Lichuanospongia typicaZhang, 1983,Polycystocoelia huajiapingensisZhang, 1983,Intrasporeocoelia hubeiensisFan and Zhang, 1985,Rhabdactinia columnariaYabe and Sugiyama, 1934,Uvanella irregularaOtt, 1967,Stromatocoelia asiaticaZhang and Fan (in Fan and Zhang, 1985), andTebagathalamia cylindricumSenowbari-Daryan and Rigby, 1988, are reported. The described assemblage represents the most diverse Permian sphinctozoan sponge fauna known from Asia.

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