The Russian School of Foraminiferology

Mikhalevich, V. I.; Bugrova, E. M.; Basov, Valeriy; Zakrevskaya, Elena; Dmitrieva, T. V.; Barash, M. S.

doi:10.2113/gsjfr.50.1.97

Cited by 2 publications

References 8 publications

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Test structure in some pioneer multichambered Paleozoic foraminifera

Dubicka

Gajewska

Kozłowski

et al. 2021

Proc. Natl. Acad. Sci. U.S.A.

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Foraminiferal wall microstructures, consistent with the molecular-based high-rank classification, are critical to understanding foraminiferal evolution and advanced taxonomic relationships. Although test structures are well documented for recent, Cenozoic, and some Mesozoic foraminifera, the diagnostic characteristics of Paleozoic taxa are largely unexplored. The majority of calcareous Paleozoic foraminifera have been assigned to the Fusulinata based on questionable homogeneously “microgranular” test wall microstructures, which have never been sufficiently documented for most taxa. We investigated the test structures of exceptionally well-preserved Devonian (Eifelian) Semitextularia thomasi, representing the first calcareous true multichambered (serial) foraminifera, and compared this species with a large fusiform Permian representative of “true” fusulinids (Neoschwagerinidae). The tests of Semitextularia thomasi display lamellar structures that are not observed in any other fossil or recent foraminiferal group. The Paleozoic foraminifera, traditionally referred to one taxon (the class Fusulinata), possess at least three contrasting test wall microstructures, representing separate high-rank taxonomic groups. Fusulinata is most likely a highly polyphyletic group that is in need of taxonomic revision. The term Fusulinata, defined as including all Paleozoic calcareous forms except Miliolida and Lagenata, is not phylogenetically meaningful and should no longer be used or should be restricted to true complex fusulinids with microgranular test structures, which appeared in the Carboniferous.

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Test structure in some pioneer multichambered Paleozoic foraminifera

Dubicka

Gajewska

Kozłowski

et al. 2021

Proc. Natl. Acad. Sci. U.S.A.

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Foraminiferal art through the ages

Lipps¹

2022

The Evolution of Paleontological Art

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Foraminifera are single-celled organisms with and without shells (tests). They have an abundant fossil record over the past 545 million years and presence in modern oceans. The art of forams is dominated by hand-drawn scientific illustrations to scanning electron microscopic images done over the past 455 years, providing vital knowledge about shelled forams. From 1665 to 1835, forams were assigned to micro-invertebrates rather than single-celled forms. With more than 75,000 publications and nearly 50,000 described species of forams, illustrations must number more than 200,000. The illustrations include a range from simple line drawings through shaded ink and pencil renderings, sometimes even colored, to photographs and scanning electron micrographs. Forams also appear in other art forms: The Pyramids at Giza in Egypt, hand-sized models, jewelry, flooring, stamps, coins, sculptures, and a Chinese Foraminiferal Sculpture Park. Foraminiferal art, although very abundant in many forms, has not caught the attention of many people outside of foraminiferology.

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The Russian School of Foraminiferology

Cited by 2 publications

References 8 publications

Test structure in some pioneer multichambered Paleozoic foraminifera

Test structure in some pioneer multichambered Paleozoic foraminifera

Foraminiferal art through the ages

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