Biomineralization in Fossil Record

A special issue of Minerals (ISSN 2075-163X). This special issue belongs to the section "Environmental Mineralogy and Biogeochemistry".

Deadline for manuscript submissions: closed (20 August 2020) | Viewed by 2981

Special Issue Editor

Department of Geology, University of Tartu, 50411 Tartu, Estonia
Interests: skeletal micro- and ultrastructures; evolution of mineral composition; biomineralization in serpulids; biomineralization in problematic fossils; aragonite versus calcite seas; ocean acidification
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Special Issue Information

Dear Colleagues,

Mechanical and chemical properties of mineral skeletons form bases of evolutionary success in many organisms. Microstructures and ultrastructures of mineral skeletons play an important role in the evolution of organisms. These micro- and ultrastructures are very diverse and have an evolutionary history of over half a billion years. In many groups, the micro- and ultrastructures of mineral skeletons are poorly known. The SEM study of fossils is essential for understanding the micro- and ultrastructural evolution of mineral skeletons. The crystallography (EBSD) of fossil skeletons is an emerging field of biomineralization studies. The mineral composition of the skeleton often determines its preservation potential as fossil. The mineralogical evolution of many organisms has not been investigated at all or is poorly understood. The best way to study the mineralogical evolution of organisms is to study their fossils throughout the geological time. It is interesting that some aquatic invertebrates are primitively calcitic, while others are primitively aragonitic. How might this affect them differently at calcite to aragonite vs. aragonite to calcite sea switchovers? In addition to aragonite versus calcite seas, past and current ocean acidification may have affected biomineralization in marine organisms. The biomineralization of terrestrial organisms also needs further studies in the context of evolution of their skeletons.

Dr. Olev Vinn
Guest Editor

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Keywords

  • skeletal micro- and ultrastructures
  • crystal lattice
  • crystallography
  • evolution of mineral structures
  • mechanical properties of mineral skeletons
  • mineralogical composition
  • mineralogical evolution
  • chemical properties of mineral skeletons
  • aragonite and calcite seas

Published Papers (1 paper)

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Review

11 pages, 4367 KiB  
Review
Biomineralization of Polychaete Annelids in the Fossil Record
by Olev Vinn
Minerals 2020, 10(10), 858; https://doi.org/10.3390/min10100858 - 29 Sep 2020
Cited by 11 | Viewed by 2677
Abstract
Ten distinct microstructures occur in fossil serpulids and serpulid tubes can contain several layers with different microstructures. Diversity and complexity of serpulid skeletal structures has greatly increased throughout their evolution. In general, Cenozoic serpulid skeletal structures are better preserved than Mesozoic ones. The [...] Read more.
Ten distinct microstructures occur in fossil serpulids and serpulid tubes can contain several layers with different microstructures. Diversity and complexity of serpulid skeletal structures has greatly increased throughout their evolution. In general, Cenozoic serpulid skeletal structures are better preserved than Mesozoic ones. The first complex serpulid microstructures comparable to those of complex structures of molluscs appeared in the Eocene. The evolution of serpulid tube microstructures can be explained by the importance of calcareous tubes for serpulids as protection against predators and environmental disturbances. Both fossil cirratulids and sabellids are single layered and have only spherulitic prismatic tube microstructures. Microstructures of sabellids and cirratulids have not evolved since the appearance of calcareous species in the Jurassic and Oligocene, respectively. The lack of evolution in sabellids and cirratulids may result from the unimportance of biomineralization for these groups as only few species of sabellids and cirratulids have ever built calcareous tubes. Full article
(This article belongs to the Special Issue Biomineralization in Fossil Record)
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