Stasis and diversity in living fossils: Species delimitation and evolution of lingulid brachiopods

Gotô, Ryôzô; Takano, Tsuyoshi; Seike, Koji; Yamashita, Momo; Paulay, Gustav; Rodgers, Kuʻulei S.; Hunter, Cynthia L.; Tongkerd, Piyoros; Sato, Shinichi; Endo, Kazuhiko

doi:10.1016/j.ympev.2022.107460

Cited by 11 publications

(4 citation statements)

References 85 publications

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“…Although the supposed living fossil Lingula has long been considered to virtually lack morphological evolutionary changes ( Schopf, 1984 ), more recent studies have shown that lingulide brachiopods have experienced dramatic modifications in many aspects ( Liang et al, 2023 ), including arrangement of internal organs ( Zhang et al, 2008 ), life mode ( Topper et al, 2015 ), shell structure ( Cusack et al, 1999 ), and even genome ( Goto et al, 2022 ; Luo et al, 2015 ). The complexity and diversity of linguliform shell architecture was increasingly recognised in the pioneering study of Cusack, Williams and Holmer ( Cusack et al, 1999 ; Holmer, 1989 ; Williams and Cusack, 1999 ; Williams and Holmer, 1992 ).…”

Section: Discussionmentioning

confidence: 99%

Evolution and diversity of biomineralized columnar architecture in early Cambrian phosphatic-shelled brachiopods

Zhang,

Holmer

et al. 2024

eLife

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Biologically controlled mineral crystals producing organic-inorganic composites (hard skeletons) by metazoan biomineralizers has been an evolutionary innovation for more than half billion years on Earth. Among them, linguliform brachiopods are the only invertebrates that secrete phosphate to build their skeletons. One of the most distinct shell structures is the organic-phosphatic columns applied exclusively by phosphatic-shelled brachiopods. However, the complexity, diversity and biomineralization process of these microscopic columns are far from clear in brachiopod ancestors. Here, exquisitely well preserved columnar structures are discovered for the first time in the earliest eoobolids. The hierarchical shell architectures, epithelial cell moulds, and the shape and size of cylindrical columns are scrutinised in Latusobolus xiaoyangbaensis gen. et sp. nov. and Eoobolus acutulus sp. nov from the Cambrian Series 2 Shuijingtuo Formation of South China. The secretion and construction of the stacked sandwich model of columnar shell, which played a significant role in the evolution of linguliforms, is highly biologically controlled and organic- matrix mediated. Furthermore, a continuous transformation of anatomic features resulting from the growth of columns is revealed between Eoobolidae, Lingulellotretidae and Acrotretida, shedding new light on the evolutionary growth and adaptive innovation of stacked sandwich columns among early phosphatic-shelled brachiopods during the Cambrian explosion.

show abstract

Section: Discussionmentioning

confidence: 99%

Evolution and diversity of biomineralized columnar architecture in early Cambrian phosphatic-shelled brachiopods

Zhang,

Holmer

et al. 2024

eLife

View full text Add to dashboard Cite

show abstract

“…Although the supposed living fossil Lingula has long been considered to virtually lack morphological evolutionary changes (Schopf, 1984), more recent studies have shown that lingulide brachiopods have experienced dramatic modifications in many aspects (Liang et al, 2023), including arrangement of internal organs (Zhang et al, 2008), life mode (Topper et al, 2015), shell structure (Cusack et al, 1999), and even genome (Goto et al, 2022; Luo et al, 2015). The complexity and diversity of linguliform shell architecture was increasingly recognised in the pioneering study of Cusack, Williams and Holmer (Cusack et al, 1999; Holmer, 1989; Williams and Cusack, 1999; Williams and Holmer, 1992).…”

Section: Discussionmentioning

confidence: 99%

Evolution and diversity of biomineralized columnar architecture in early Cambrian phosphatic-shelled brachiopods

Zhang

Holmer

et al. 2023

Preprint

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Biologically controlled mineral crystals producing organic-inorganic composites (hard skeletons) by metazoan biomineralizers has been an evolutionary innovation for more than half billion years on Earth. Among them, linguliform brachiopods are the only invertebrates that secrete phosphate to build their skeletons. One of the most distinct shell structures is the organic-phosphatic columns applied exclusively by phosphatic-shelled brachiopods. However, the complexity, diversity and biomineralization process of these microscopic columns are far from clear in brachiopod ancestors. Here, exquisitely well preserved columnar structures are discovered for the first time in the earliest eoobolids. The hierarchical shell architectures, epithelial cell moulds, and the shape and size of cylindrical columns are scrutinised in Latusobolus xiaoyangbaensis gen. et sp. nov. and Eoobolus acutulus sp. nov from the Cambrian Series 2 Shuijingtuo Formation of South China. The secretion and construction of the stacked sandwich model of columnar shell, which played a significant role in the evolution of linguliforms, is highly biologically controlled and organic-matrix mediated. Furthermore, a continuous transformation of anatomic features resulting from the growth of columns is revealed between Eoobolidae, Lingulellotretidae and Acrotretida, shedding new light on the evolutionary growth and adaptive innovation of stacked sandwich columns among early phosphatic-shelled brachiopods during the Cambrian explosion.

show abstract

“…Although the supposed living fossil Lingula has long been considered to virtually lack morphological evolutionary changes (Schopf, 1984), more recent studies have shown that lingulide brachiopods have experienced dramatic modifications in many aspects (Liang et al, 2023), including internal organs (Zhang et al, 2008), life mode (Topper et al, 2015), shell structures (Cusack et al, 1999), and even genome (Goto et al, 2022;Luo et al, 2015). The complexity and diversity of linguliform shell architecture was increasingly recognised in the pioneering study of Cusack, Williams and Holmer (Cusack et al, 1999;Holmer, 1989;Williams and Cusack, 1999;Williams and Holmer, 1992).…”

Section: Diversity Of Linguliform Brachiopod Shellsmentioning

confidence: 99%

Evolution and diversity of biomineralized columnar architecture in early Cambrian phosphatic-shelled brachiopods

Zhang,

Holmer

et al. 2023

Preprint

View full text Add to dashboard Cite

Biologically-controlled mineralization producing organic-inorganic composites (hard skeletons) by metazoan biomineralizers has been an evolutionary innovation since the earliest Cambrian. Among them, linguliform brachiopods are one of the key invertebrates that secrete calcium phosphate minerals to build their skeletons. One of the most distinct shell structures is the organo-phosphatic cylindrical column exclusive to phosphatic-shelled brachiopods, including both crown and stem groups. However, the complexity, diversity and biomineralization processes of these microscopic columns are far from clear in brachiopod ancestors. Here, exquisitely well-preserved columnar shell ultrastructures are reported for the first time in the earliest eoobolids. The hierarchical shell architectures, epithelial cell moulds, and the shape and size of cylindrical columns are scrutinised in Latusobolus xiaoyangbaensis gen. et sp. nov. and Eoobolus acutulus sp. nov from the Cambrian Series 2 Shuijingtuo Formation of South China. The secretion and construction of the stacked sandwich model of columnar architecture, which played a significant role in the evolution of linguliforms, is highly biologically controlled and organic-matrix mediated. Furthermore, a continuous transformation of anatomic features resulting from the growth of columnar shells is revealed between Eoobolidae, Lingulellotretidae and Acrotretida, shedding new light on the evolutionary growth and adaptive innovation of biomineralized columnar architecture among early phosphatic-shelled brachiopods during the Cambrian explosion.

show abstract

Stasis and diversity in living fossils: Species delimitation and evolution of lingulid brachiopods

Cited by 11 publications

References 85 publications

Evolution and diversity of biomineralized columnar architecture in early Cambrian phosphatic-shelled brachiopods

Evolution and diversity of biomineralized columnar architecture in early Cambrian phosphatic-shelled brachiopods

Evolution and diversity of biomineralized columnar architecture in early Cambrian phosphatic-shelled brachiopods

Evolution and diversity of biomineralized columnar architecture in early Cambrian phosphatic-shelled brachiopods

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