Evolution of the silicoflagellate naviculopsid skeletal morphology in the Cenozoic

McCartney, Kevin; Witkowski, Jakub; Nowakowski, Ryszard; Szaruga, Adrianna; Zgłobicka, Izabela

doi:10.1016/j.marmicro.2019.101820

Cited by 5 publications

(2 citation statements)

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“…Mathematical modeling by McCartney and Loper (1989) suggested that an important function of the apical structure is to support the outer cell surface to reduce surface energy during the divisional process (McCartney et al 2014). The general history of naviculopsid silicoflagellates indicates that there may have times when there was a need for apical elements to divide the apical cell wall into small portals (McCartney et al 2020). A smaller overall skeletal size may achieve this as well.…”

Section: Significance Of Nodosa Morphologiesmentioning

confidence: 99%

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Acta Geologica Polonica

Szaruga

McCartney

Witkowski

2021

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Upper Miocene (~6 Ma) sediments from a north-south transect of Ocean Drilling Program Holes 848B, 849B, 850B, 851B across the equator in the Eastern Pacific Ocean record an episode of unusual skeletal variability associated with the silicoflagellate Bachmannocena diodon subsp. nodosa (Bukry) Bukry, 1987. Skeletons in this plexus persisted for between 55,000 and 75,000 years and include an arch across a 2-sided basal ring, a highly unusual morphology for the genus. Groups of skeletal morphotypes were common within the plexus episode, and occur in a systematic sequence that is consistent between sites. As a result of this study, silicoflagellates previously placed in the genus Neonaviculopsis Locker and Martini, 1986 are now considered part of the Bachmannocena diodon subsp. nodosa plexus.

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Section: Significance Of Nodosa Morphologiesmentioning

confidence: 99%

“…1). These diverse plexid skeletal morphologies have a range of naviculopsid morphologies (McCartney et al 2020) associated with Bachmannocena diodon subsp. nodosa (Bukry) Bukry, 1987 (hereafter referred to as BDN;McCartney et al 1995) and include a highly unusual arch across the 2-sided basal ring.…”

Section: Introductionmentioning

confidence: 99%