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Diatoma (Bacillariophyceae)

Diatoma sp. from a lake in New Hampshire USA

Diatoma cf. vulgaris
Frustule from a core sample 8,000 - 10,000 years old in a submerged lake (Kelley et al. 2010) off the coast of Maine USA. Note: how the striations curve at each end of the cell and the central pseudoraphe. Identified by A.L. Baker and counted by Carol Elliott, University of NH USA

Kelley, J.T., Belknap, D.F., and Claesson, S., 2010, Drowned coastal deposits with associated archeological remains from a sea-level “slowstand”: northwestern Gulf of Maine, USA. Geology, v. 38, p. 695-698, doi: 10.1130/G31002.1

Diatoma constricta
Photo posted online

Diatoma ehrenbergii
Photograph by Jason Zalack posted online

Diatoma ehrenbergii
Photograph posted online

Diatoma mesodon from Mill Creek, CO USA
Photograph by Marina Potapova posted online

Diatoma mesodon
Image posted online

Diatoma vulgare
Photograph posted online

Diatoma vulgare from Belgian estuaries (Oostende, Blankenberge and Nieuwpoort)
Photograph by Alessandro Bertoglio posted online

Diatom vurgalis
Photo posted online

Diatom vulgare from Jukam-ri, Hoein-myeon Boeun-gun Chungcheongbuk-do , Korea
Photo by Shin Jaegi posted online

Diatoma vulgaris
Photograph by Oliver Skibbe posted online

Diatoma vulgaris
Modified from photograph posted online

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