Permian spiriferellid brachiopods from northern Pangaea: taxonomy, biostratigraphy, macroevolution and implications for palaeoenvironmental and palaeobiogeographical reconstructions

Lee, Sangmin; Shi, G.R.; Woo, Jong Inn; Park, Tae-Yoon S.; Oh, Jong‐Min; Kim, Na Kyung; Nakrem, Hans Arne; Tazawa, Jun-ichi

doi:10.1080/14772019.2019.1570569

Cited by 7 publications

(12 citation statements)

References 54 publications

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“…This specimen was collected from the Vøringen Member (late Early Permian) of the Kapp Starostin Formation in Skansbukta, central Spitsbergen (Arctic Norway), together with numerous other brachiopod fossils (see Lee et al . ). The specimen was transversely (parallel to the shell maximum width line) serial‐sectioned, originally in order to inspect its internal structure for taxonomic identification.…”

Section: Methodsmentioning

confidence: 97%

“…In particular, the specimen seems to be considerably similar to Spiriferella draschei (Toula ), a common species in the Kapp Starostin Formation of Spitsbergen as well as in other Permian marine deposits along the northern margin of Pangaea (Lee et al . ). They share the same morphology of dental structures and micro‐ornamentation.…”

Section: Methodsmentioning

confidence: 97%

“… Spiriferella protodraschei Lee & Shi in Lee et al . ( NMV P340474) from the Vøringen Member of the Kapp Starostin Formation in Skansbukta, central Spitsbergen. A–D, ventral, dorsal, lateral and posterior views of a conjoined shell.…”

Section: Methodsmentioning

confidence: 99%

“…The whole series of the serial sections (starting from the posterior tip of the specimen) can be downloaded from https://doi.org/10.6084/m9.figshare.7803392 (see also Lee et al . , fig. 17) [Colour figure can be viewed at wileyonlinelibrary.com]…”

Section: Methodsmentioning

confidence: 99%

“…Consequently, it was very recently assigned to the new species Spiriferella protodraschei Lee & Shi in Lee et al . , regarded as a close ancestral species of S. draschei .…”

Section: Methodsmentioning

confidence: 99%

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Discovery of ventrally directed spiralia in a Permian spiriferellid brachiopod and implications for its feeding system

Lee

Shi

Jung

et al. 2019

LET

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Spiralia are lophophore‐supporting, coiled internal structures developed in some extinct brachiopods. In spite of considerable variations in their orientation, the spiralia of most spiriferide and spiriferinide taxa are known to be laterally directed. Recent studies have shown that these brachiopods consistently have a median inhalant and lateral exhalant feeding system. Here, we report a Permian spiriferellid brachiopod fossil (Spiriferella protodraschei) bearing ventrally directed spiralia in its interior. Using the serial sections of the specimen, we have reconstructed the detailed morphology and orientation of the spiralia. Each spiralium in the specimen does not show the apically tapering pattern supposedly universal in all the known types of spiralia: instead it maintains a similar diameter even at its last whorl. The spiralia appear to have directly developed from strong and anteriorly extended crura, consisting of ten whorls in one side and 13 whorls in the other side. As the morphology and orientation of spiralia are immediately associated with the arrangement of spirolophous lophophore within the mantle cavity, the extraordinary orientation and form of the spiralia indicate that this brachiopod likely had developed a considerably modified feeding pattern with respect to most other spirolophous brachiopods. It is postulated that the inhalant/exhalant current circulation of the species (and its descendants) would be considerably different from that of other spiriferide taxa. In particular, the combination of the vertically oriented life posture (free‐lying with thickened ventral apex bottom) and ventrally directed spiralia resembles both fossil atrypide and modern rhynchonellide brachiopods in the orientation of spirolophe, suggesting that some spiriferellid brachiopods may have developed a lateral inhalant/median exhalant feeding current system. A few spiriferide and spiriferinide brachiopod taxa with a weakly transverse but strongly convex ventral valve are noted to exhibit similar modifications in their spiralia, possibly due to the spatial limitation of their mantle cavities.

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Section: Methodsmentioning

confidence: 97%

Section: Methodsmentioning

confidence: 97%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…Consequently, it was very recently assigned to the new species Spiriferella protodraschei Lee & Shi in Lee et al . , regarded as a close ancestral species of S. draschei .…”

Section: Methodsmentioning

confidence: 99%

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Discovery of ventrally directed spiralia in a Permian spiriferellid brachiopod and implications for its feeding system

Lee

Shi

Jung

et al. 2019

LET

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Brachial supporting structure of Spiriferida (Brachiopoda)

et al. 2020

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The filter-feeding organ of some extinct brachiopods is supported by a skeletal apparatus called the brachidium. Although relatively well studied in Atrypida and Athyridida, the brachidial morphology is usually neglected in Spiriferida. To investigate the variations of brachidial morphology in Spiriferida, 65 species belonging to eight superfamilies were analyzed. Based on the presence/absence of the jugal processes and normal/modified primary lamellae of the spiralia, four types of brachidium are recognized. Type-I (with jugal processes) and Type-II (without jugal processes), both having normal primary lamellae, could give rise to each other by losing/re-evolving the jugal processes. Type-III, without jugal processes, originated from Type-II through evolution of the modified lateral-convex primary lamellae, and it subsequently gave rise to Type-IV by evolving the modified medial-convex primary lamellae. The evolution of brachidia within individual evolutionary lineages must be clarified because two or more types can be present within a single family. Type-III and Type-IV are closely associated with the prolongation of the crura, representing innovative modifications of the feeding apparatus in response to possible shift in the position of the mouth towards the anterior, allowing for more efficient feeding on particles entering the mantle cavity from the anterior gape. Meanwhile, the modified primary lamellae adjusted/regulated the feeding currents. The absence of spires in some taxa with Type-IV brachidium might suggest that they developed a similar lophophore to that in some extant brachiopods, which can extend out of the shell.

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Cisuralian–Guadalupian brachiopod assemblages from the northern Tengchong Block in western Yunnan, China and their paleogeographical implications—a revisit

Zong,

Zhan,

Lee

et al. 2024

J. Paleontol.

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The early to middle Permian brachiopods from the Tengchong Block in western Yunnan, southwestern China, play important roles in biostratigraphic correlation and paleogeographic inferences of tectonic units on eastern peri-Gondwana. However, detailed taxonomic studies of these brachiopods have been limited. In this paper, we provide the systematic description of three Permian brachiopod assemblages from the Shanmutang section in the northern Tengchong Block, which in ascending order include the Elivina-Etherilosia Assemblage from the top of the Kongshuhe Formation, and the Spiriferella-Spiriferellina Assemblage and the Waagenites-Costiferina Assemblage from the base and lower part, respectively, of the overlying Dadongchang Formation. Based on the biostratigraphic assessment of the brachiopod taxa as well as the age constraints from the associated fusulinid assemblages, the age of the Elivina-Etherilosia Assemblage is considered to be most likely late Sakmarian to early Artinskian, the Spiriferella-Spiriferellina Assemblage probably late Artinskian, and the Waagenites-Costiferina Assemblage late Roadian to early Wordian. A transition from cool-water faunas with Gondwanan affinities to mixed warm-temperate (transitional) faunas with Cathaysian elements is evident for the Artinskian and through the Guadalupian. The climatic transition inferred from the faunal evidence is interpreted to have resulted from the combined effect of Gondwana deglaciation and the northward drift of the peri-Gondwanan blocks (including the Tengchong Block) during the Cisuralian and Guadalupian.

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Permian spiriferellid brachiopods from northern Pangaea: taxonomy, biostratigraphy, macroevolution and implications for palaeoenvironmental and palaeobiogeographical reconstructions

Cited by 7 publications

References 54 publications

Discovery of ventrally directed spiralia in a Permian spiriferellid brachiopod and implications for its feeding system

Discovery of ventrally directed spiralia in a Permian spiriferellid brachiopod and implications for its feeding system

Brachial supporting structure of Spiriferida (Brachiopoda)

Cisuralian–Guadalupian brachiopod assemblages from the northern Tengchong Block in western Yunnan, China and their paleogeographical implications—a revisit

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