Leptomitid sponges from the Cambrian (Stage 4) Balang Fauna of Guizhou, China

Wang, Qiujun; Jin, Peng; Wen, Rong; Du, Guangying; Zhang, Hui; Wang, Dezhi; Wang, Yifan

doi:10.1016/j.geobios.2019.10.005

Cited by 3 publications

(2 citation statements)

References 30 publications

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“…Sponge specimens include both fully articulated skeletons and partly and completely disarticulated remains (Q.J. Wang et al, 2018, 2019, 2020) that were collected from the Lazizhai section (Fig. 1.2) at Lazizhai Village, Jianhe County, Kaili City, Guizhou.…”

Section: Methodsmentioning

confidence: 99%

“…; Byronia sp. ), sponges (e.g., Jianhella obconica Wang and Peng in Wang et al, 2019; Leptomitus teretiusculus Chen, Hou, and Lu, 1989; Hamptonia jianhensis Wang and Peng in Q.J. Wang et al, 2020), worms ( Wronascolex geyiensis Peng et al, 2016), brachiopods ( Diandongia cirularis Peng et al, 2010b; Lingulellotreta malongensis [Rong, 1974]), echinoderms ( Guizhoueocrinus yui Zhao, Parsley, and Peng, 2007), mollusks, hyoliths ( Haplophrentis reesei Babcock and Robison, 1988; Ambrolinevitus maximus Jiang, 1982; ?…”

Section: Geological Settingmentioning

confidence: 99%

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Saetaspongia sponges from the Cambrian (Stage 4) Balang Formation of Guizhou, China

et al. 2021

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Saetaspongia so far cannot be confidently assigned to any class-level crown group. Clarifying its phylogenetic position requires new information provided by more detailed studies of previously described and/or new material. Some sponge fossils with the typical skeletal architecture of Saetaspongia have recently been recognized in the Cambrian (Stage 4) Balang Biota of Guizhou, China, including S. jianhensis new species and S. cf. S. densa. The new taxon is characterized by the following features: spicules are fine monaxons and are inclined to be loosely to densely arranged into plumose arrays; skeleton is composed primarily of one major plumose bundle, with an uncertain number (perhaps two) of small plumose arrays; and primary skeleton is occasionally interspersed with some irregularly oriented individual spicules. An additional specimen consisting of large monaxons, with plumose structures and overlying irregular coarse monaxons, closely fits the description and illustrations of previously described S. cf. S. densa. By combining information from previous studies and the present research, fossil evidence indicates that the plumose architecture is a critical feature diagnostic of Saetaspongia and that there are no hexactine-based spicules in this genus. The new material from the Balang Biota further supports the notion that Saetaspongia has a protomonaxonid rather than a hexactinellid affinity. Fossil evidence suggests that Saetaspongia had a wide biogeographic distribution during the early Cambrian and the stratigraphic distribution of this genus extends up to Stage 4. UUID: http://zoobank.org/e9ca5e4a-134c-4daa-9266-19085e32614f.

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Section: Methodsmentioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%

Saetaspongia sponges from the Cambrian (Stage 4) Balang Formation of Guizhou, China

et al. 2021

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Chancelloriids from the Cambrian (Stage 4) Balang Lagerstätte of South China and a reappraisal of their diversification in South China

Zhang,

Wang,

Zhang

et al. 2024

Geobios

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The lower Cambrian Cranbrook Lagerstätte of British Columbia

Caron,

Webster,

Briggs

et al. 2023

JGS

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Discovered over a century ago, the lower Cambrian (Series 2, Stage 4) Cranbrook Lagerstätte of southeastern British Columbia's Eager Formation is one of the oldest Burgess Shale-type deposits in North America. This Konservat-Lagerstätte is rich in olenelloid trilobites, but also yields a very low-diversity soft-bodied fossil assemblage including Tuzoia and Anomalocaris , and a low-diversity ichnofauna. Its scientific study, however, remains limited. A 2015 field-based investigation by the Royal Ontario Museum has revealed new information about the site's biota, depositional environment, and taphonomic conditions. Not only is the Cranbrook Lagerstätte significant for early Cambrian biostratigraphy and comparisons with other Burgess Shale-type deposits, it also reveals some of the little-known diversity of life along a distal outer shelf environment during the Cambrian period. Supplementary material: https://doi.org/10.6084/m9.figshare.c.6850810

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Leptomitid sponges from the Cambrian (Stage 4) Balang Fauna of Guizhou, China

Cited by 3 publications

References 30 publications

Saetaspongia sponges from the Cambrian (Stage 4) Balang Formation of Guizhou, China

Saetaspongia sponges from the Cambrian (Stage 4) Balang Formation of Guizhou, China

Chancelloriids from the Cambrian (Stage 4) Balang Lagerstätte of South China and a reappraisal of their diversification in South China

The lower Cambrian Cranbrook Lagerstätte of British Columbia

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