A new fossil species of Rhopalodia O. Müller (Bacillariophyceae, Rhopalodiales) from Mexico

Max Moore; Megan Greenwood; Patrick Kociolek; Sarah Hamsher; Scott Miller; Jingchun Li

doi:10.1080/0269249X.2025.2478955

A new fossil species of Rhopalodia O. Müller (Bacillariophyceae, Rhopalodiales) from Mexico

Max Moore, Megan Greenwood, Patrick Kociolek, Sarah Hamsher, Scott Miller, Jingchun Li

Division of Biological and Biomedical Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

A new species of Rhopalodia is described from fossil sediments from Mexico based on light and scanning electron microscope observations. The new Rhopalodia species has valve features that place it within the R. gibba group of the genus, including a raphe in a short keel on the dorsal side of the valve and girdle bands that have small extensions that clasp over the costate fibulae. The species is distinguished from R. gibba and other allied species by valve shape. This is the first extinct fossil species of Rhopalodia described outside of Europe.

Original language	English
Pages (from-to)	229-236
Number of pages	8
Journal	Diatom Research
Volume	40
Issue number	3
DOIs	https://doi.org/10.1080/0269249X.2025.2478955
State	Published - 2025

Keywords

diatoms
light microscopy
Miocene
scanning electron microscopy
systematics
taxonomy

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10.1080/0269249X.2025.2478955

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abstract = "A new species of Rhopalodia is described from fossil sediments from Mexico based on light and scanning electron microscope observations. The new Rhopalodia species has valve features that place it within the R. gibba group of the genus, including a raphe in a short keel on the dorsal side of the valve and girdle bands that have small extensions that clasp over the costate fibulae. The species is distinguished from R. gibba and other allied species by valve shape. This is the first extinct fossil species of Rhopalodia described outside of Europe.",

keywords = "diatoms, light microscopy, Miocene, scanning electron microscopy, systematics, taxonomy",

author = "Max Moore and Megan Greenwood and Patrick Kociolek and Sarah Hamsher and Scott Miller and Jingchun Li",

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T1 - A new fossil species of Rhopalodia O. Müller (Bacillariophyceae, Rhopalodiales) from Mexico

AU - Moore, Max

AU - Greenwood, Megan

AU - Kociolek, Patrick

AU - Hamsher, Sarah

AU - Miller, Scott

AU - Li, Jingchun

PY - 2025

Y1 - 2025

N2 - A new species of Rhopalodia is described from fossil sediments from Mexico based on light and scanning electron microscope observations. The new Rhopalodia species has valve features that place it within the R. gibba group of the genus, including a raphe in a short keel on the dorsal side of the valve and girdle bands that have small extensions that clasp over the costate fibulae. The species is distinguished from R. gibba and other allied species by valve shape. This is the first extinct fossil species of Rhopalodia described outside of Europe.

AB - A new species of Rhopalodia is described from fossil sediments from Mexico based on light and scanning electron microscope observations. The new Rhopalodia species has valve features that place it within the R. gibba group of the genus, including a raphe in a short keel on the dorsal side of the valve and girdle bands that have small extensions that clasp over the costate fibulae. The species is distinguished from R. gibba and other allied species by valve shape. This is the first extinct fossil species of Rhopalodia described outside of Europe.

KW - diatoms

KW - light microscopy

KW - Miocene

KW - scanning electron microscopy

KW - systematics

KW - taxonomy

UR - https://www.scopus.com/pages/publications/105002659192

U2 - 10.1080/0269249X.2025.2478955

DO - 10.1080/0269249X.2025.2478955

M3 - Article

AN - SCOPUS:105002659192

SN - 0269-249X

VL - 40

SP - 229

EP - 236

JO - Diatom Research

JF - Diatom Research

IS - 3

ER -

A new fossil species of Rhopalodia O. Müller (Bacillariophyceae, Rhopalodiales) from Mexico

Abstract

Keywords

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