Glossary of Skeletal Biomineralization

Caner, J.G.; Bändel, Klaus; Buffrénil, Vivian de; Carlson, Sandra J.; Castanet, J.; Dalingwater, J.; Francillon‐Vieillot, H.; Géraudie, Jacqueline; Meunier, François; Mutvei, Harry; Ricqlès, Armand de; Sire, Jean‐Yves; Smith, Annie; Wendt, Jobst; Williams, Antony S.; Zylberberg, Louise

doi:10.1002/9781118667279.oth1

Cited by 36 publications

(61 citation statements)

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“…Vinn (2012) hypothesised that calcite is favoured by the serpulid biomineralisation system for producing complex structures. In contrast, within molluscs aragonite has a greater variety of complex structures as compared to that of calcite (Carter et al, 1990). Recently Smith et al (2013) also showed that clade AI ("Serpula-group") tends to have mixed mineralogy with dominating calcite, and clade AII ("Spirobranchus-group") tends to have fully calcitic mineralogy, sometimes with little aragonite.…”

Section: Tube Mineral Composition: New Cues For Serpulid Evolutionmentioning

confidence: 99%

Written in stone: history of serpulid polychaetes through time

et al. 2014

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Ippolitov, A.P., Vinn, O., Kupriyanova, E.K. and Jäger, M. 2014. Written in stone: history of serpulid polychaetes through time. Memoirs of Museum Victoria 71: 123-159.Although the fossil record of annelids in general is poor, calcareous tube-building Serpulidae are a notable exception. The "stumbling block" of understanding the serpulid fossil record is obtaining reliable taxonomic interpretations of fossil tubes based on morphology. Luckily, serpulid tubes demonstrate high variety of ultrastructures and nonuniform mineralogical composition, which can be used as new tools for decrypting the fossil record. Ancient Late Ediacaran (580-541 Ma) and Paleozoic (541-252 Ma) rocks contain diverse tubicolous fossils that have often been erroneously interpreted as annelids, and serpulids, in particular. Palaeozoic to Middle Jurassic coiled spirorbiform tubes, often referred to as Spirorbis, had been shown to be microconchids, a group of probable lophophorate affinity. The most ancient records of unequivocal serpulids date back to the Middle Triassic (~244 Ma) of the Mesozoic, and from the Earliest Jurassic (~200 Ma) fossil serpulids become common. From the latest Jurassic (~146 Ma) serpulids colonised hydrocarbon seep environments and possibly also penetrated the deep sea. Concerted efforts of paleontologists and zoologists are needed for further understanding of serpulid evolutionary history. The serpulid fossil record can become a valuable instrument for calibration of "molecular clocks" in polychaetes, which would allow dating not only divergence events in serpulids, but also in annelid groups that lack a representative fossil record.

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Section: Tube Mineral Composition: New Cues For Serpulid Evolutionmentioning

confidence: 99%

Written in stone: history of serpulid polychaetes through time

et al. 2014

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“…The regular spherulitic prismatic structure is presumably more advanced than an irregular spherulitic prismatic structure; the regular shape of the crystals and thick interprismatic organic sheets probably increase the sturdiness of the material (Carter et al 1990;Mutvei pers. comm.…”

Section: Discussionmentioning

confidence: 99%

Microstructure and formation of the calcareous operculum in Pyrgopolon ctenactis and Spirobranchus giganteus (Annelida, Serpulidae)

Vinn

Hove²

2011

Zoomorphology

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The calcareous operculum of Pyrgopolon ctenactis is composed of spherulitic prismatic structures. The opercular cup consists of regular spherulitic prismatic crystals; the talon has two layers, an inner with an irregular spherulitic prismatic structure (150 lm thick) and an outer with a regular spherulitic prismatic structure (110 lm thick). The outer regular structure has thick (1 lm) organic interprismatic sheets unique in biomineralization of this group, but similar to that of Bivalvia. We infer that control over biomineralization is stronger during the formation of the outer regular layer, with its thick organic interprismatic sheets, than during the formation of the inner irregular spherulitic prismatic structure, without such sheets. In Spirobranchus giganteus, opercular formation differs from that of P. ctenactis. S. giganteus has numerous pores in its opercular plate, and calcification starts with the formation of an outer irregularly oriented prismatic structure followed by an oriented prismatic structure without interprismatic sheets.

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“…This form is seen only in nacre (see Figure 6 for some modern examples of nacre). Nacre was defined by Carter et al [31] as "polygonal to rounded aragonitic tablets arranged in broadly continuous, regular, mutually parallel laminae" (p. 611). Thus we agree with Grégoire [10] and Mutvei [11] that nacre is the type of shell microstructure replicated here.…”

Section: Isorthoceras Sociale and Other Molluscs From The Ordovician mentioning

confidence: 99%

“…However, details of the crystalline constituents of the lamellae have not yet been seen, and so it is unclear which type of laminar microstructure is preserved here. In general, coiled shells from Cambrian deposits tend to have lamello-fibrillar shell microstructure [3,37], where "the horizontal fibers in successive laminae differ in orientation by irregularly varying angles" (p. 611) [31].…”

Section: Molluscs From the Ordovician Cyclora Beds Of Indiana And Ohiomentioning

confidence: 99%

Nacre in Molluscs from the Ordovician of the Midwestern United States

Vendrasco

Checa

Heimbrock³

et al. 2013

Geosciences

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Nacre was previously thought to be primitive in the Mollusca, but no convincing Cambrian examples are known. This aragonitic microstructure with crystal tablets that grow within an organic framework is thought to be the strongest, most fracture-resistant type of shell microstructure. Fossils described herein from the Ordovician of Iowa, Indiana, and Ohio provide supporting evidence for the hypothesis that sometime between the middle Cambrian and late Ordovician, nacre originated in cephalopod, bivalve, and possibly gastropod lineages. The correlation of independent origins of fracture-resistant nacre with increasing shell-crushing abilities of predators during the Cambrian-Ordovician suggests an early pulse in the evolutionary arms race between predators and molluscan prey.

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Glossary of Skeletal Biomineralization

Cited by 36 publications

References 0 publications

Written in stone: history of serpulid polychaetes through time

Written in stone: history of serpulid polychaetes through time

Microstructure and formation of the calcareous operculum in Pyrgopolon ctenactis and Spirobranchus giganteus (Annelida, Serpulidae)

Nacre in Molluscs from the Ordovician of the Midwestern United States

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