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Albaillella
The relationship between the genus Albaillella Deflandre and the ceratoikiscid Radiolaria
Radiolarians from the E-Lert Fm. (a–h) Albaillella asymmetrica Ishiga &am...
Figure 5 —Sketch of Albaillella kayai n. sp. showing short-hand notation...
Scale bar 100μm. Specimens from Goji-hachimuran (Gh), Ubara (Ub) and Tenjin...
Figure 5 —Latest Permian Albaillellidae from the Dongpan Section, Guangxi,...
Abstract: The Permian Period is one of the most varied times, not only in oceanic environments, but also for the evolution of the radiolarian assemblages. Permian radiolarians have been extensively studied, and great progress has been achieved recently in their biostratigraphy. Seventeen Permian radiolarian zones are summarized here. Among these, seven zones are assigned to the latest Carboniferous–early Permian, namely (in ascending order): the Pseudoalbaillella bulbosa Assemblage Zone, the Pseudoalbaillella u-forma – Pseudoalbaillella elegans Assemblage Zone, the Pseudoalbaillella lomentaria – Pseudoalbaillella sakmarensis Assemblage Zone, the Pseudoalbaillella rhombothoracata Interval Zone, the Albaillella xiaodongensis Assemblage Zone, the Albaillella sinuata Abundance Zone and the Pseudoalbaillella ishigai Abundance Zone. Five zones are attributed to the middle Permian, including the Pseudoalbaillella globosa Interval Zone, the Follicucullus monacanthus Interval Zone, the Follicucullus porrectus Interval Zone, the Follicucullus scholasticus Interval Zone and the Follicucullus charveti Interval Zone. Five zones belong to the middle Permian–late Permian, including the Albaillella cavitata Interval Zone, the Albaillella levis Interval Zone, the Albaillella excelsa Interval Zone, the Albaillella triangularis Interval Zone and the Albaillella yaoi Abundance Zone. These Permian radiolarian biozones and their correlations with conondont zones or other chronostratigraphic schemes are discussed. The phylogenetic model of radiolarians through the Permian Period is also revised.
ALBAILLELLIDAE (RADIOLARIA) FROM THE LATEST PERMIAN IN SOUTHERN GUANGXI, CHINA
Pelagic radiolarian and conodont biozonation in the Permo-Triassic boundary interval and correlation to the Meishan GSSP
Some New Radiolarian Species and Genus from Upper Permian in Guangxi Province, South China
Figure 8. All radiolarians are from Dongpan, Liuqiao, Xichang and Balong s...
Scale bar 100μm. All specimens from Goji-hachimuran, southwest Japan. 1 Ne...
Figure 4 —Scanning electron micrographs. All scale bars are 50 μm. Specime...
MIDDLE TO UPPER TOURNASIAN RADIOLARIA OF THE BALTALIMANI FORMATION, ISTANBUL, TURKEY
Figure 4 —Latest Permian Albaillellidae from the Dongpan Section, Guangxi,...
F ig . 6. Radiolarians from the lower parts of a sequence of Water Pipe Can...
ABSTRACT A radiolarian zonation consisting of 10 zones is proposed for the Upper Devonian (Famennian) and Lower Carboniferous (Mississippian) of the southern United States. In the Arbuckle Mountains and Criner Hills of Oklahoma, Upper Devonian and Mississippian Radiolaria-bearing samples were collected from the Woodford, Sycamore and ‘Caney’ Formations as well as the basal portion of the Goddard Formation. The following 11 sections were studied, integrated through correlation of first and last appearance datums (FAD’s and LAD’s) of distinct biostratigraphically useful species, and linked to published zonations where possible: Criner Hills Locality 1, Criner Hills Locality 2, Henry House Creek (West Stream), Henry House (South Side), Arbuckle Anticline (South Limb, 1-35), Arbuckle Anticline (North Limb, 1-35), Ti Valley, Hickory Creek, Philips Creek, Oil Creek, and Viola (near Delaware Creek). Three radiolarian zones occur at the Criner Hills Locality 1 section: Staurentactinia spp.- Lapidopiscum spp. Zone, Lapidopiscum spp.- Protoalbaillella deflandrei Zone, and Glanta crinerensis-Protoalbaillella media Zone. Four radiolarian zones occur at the Criner Hills Locality 2 section: Pylentonema spp.-Staurentactinia spp. Zone, Staurentactinia spp.-Lapidopiscum spp. Zone, Lapidopiscum spp.-Protoalbaillella deflandrei Zone, and Glanta crinerensis-Protoalbaillella media Zone. Two radiolarian zones occur at the Henry House (South Side) section: Lapidopiscum spp.- Protoalbaillella deflandrei Zone and Glanta crinerensis-Protoalbaillella media Zone. Two radiolarian zones occur at the Henry House Creek (West Stream) section: Staurentactinia spp.- iMpidopiscum spp. Zone and an undefined biozone. Five radiolarian zones occur at the Arbuckle Anticline (South Limb, 1-35) section: Pylentonema spp.-Staurentactinia spp. Zone, Staurentactinia spp.- Lapidopiscum spp. Zone, Lapidopiscum spp.- Protoalbaillella deflandrei Zone, Glanta crinerensis-Protoalbaillella media Zone, and a Pre - “ A. cartalla-A. furcata” Interval. Four radiolarian zones occur at the Arbuckle Anticline (North Limb, 1-35) section: Lapidopiscum spp.- Protoalbaillella deflandrei Zone, the Pre - “ A. cartalla-A. furcata” Interval, Albaillella cartalla-Albaillella furcata Zone, and Albaillella furcata-Ormistonella hickoryensis Zone. Three radiolarian zones occur at the Ti Valley section: Lapidopiscum spp.-Protoalbaillella deflandrei Zone, Protoalbaillella deflandrei-Holoeciscus spp. Zone, and an undefined biozone. The Hickory Creek, Philips Creek, Oil Creek and Viola sections contain the Ormistonella hickoryensis-Cornum spp. Zone, Cornum spp.-Trilacertus baumgartneri Zone, Trilacertus baumgartneri-Circulaforma robusta Zone, and an unzoned interval, respectively. This zonation has been calibrated using concomitant data supplied by conodonts and goniatites. This biostratigraphic data serves as a bridge, linking the proposed zonation to North American and European standard zones as well as the geochronometric time scale. Two new subfamilies, three new genera, and 50 new species are described and figured herein. Also, the stratigraphic distribution of 185 species is presented. Radiolarian biostratigraphic data from a third area, the Ouachita Mountains of Oklahoma, was re-examined and integrated with this study.