Trinacria (diatom)

Trinacria; Temporal range: Early Eocene, 59.2–56 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
	Trinacria simulacrum
Scientific classification
Domain:	Eukaryota
Clade:	Sar
Clade:	Stramenopiles
Phylum:	Ochrophyta
Clade:	Diatomeae
Class:	Mediophyceae
Order:	Hemiaulales
Family:	Hemiaulaceae
Genus:	† Trinacria ; Heiberg [ da ] (1863)
Species
	Trinacria acuminata ; Trinacria altar ; Trinacria anisimovae ; Trinacria antiqua ; Trinacria aries ; Trinacria barronii ; Trinacria cancellata ; Trinacria caudata ; Trinacria chenevierei ; Trinacria conifera ; Trinacria cornuta ; Trinacria coronata ; Trinacria cristata ; Trinacria deciusi ; Trinacria deciusii ; Trinacria ecostata ; Trinacria excavata ; Trinacria exsculpta ; Trinacria fimbriata ; Trinacria fragilis ; Trinacria grevillei ; Trinacria grunowii ; Trinacria heibergii ; Trinacria hystrix ; Trinacria indefinita ; Trinacria insipiens ; Trinacria insolita ; Trinacria interlineata ; Trinacria jeremiae ; Trinacria jordanii ; Trinacria kittoniana ; Trinacria lecointei ; Trinacria limpida ; Trinacria lingulata ; Trinacria media ; Trinacria mertzii ; Trinacria mucronata ; Trinacria muelleri ; Trinacria nitescens ; Trinacria pachtii ; Trinacria palmipes ; Trinacria pantocsekii ; Trinacria paradoxa ; Trinacria pileolus ; Trinacria praecellens ; Trinacria praetenuis ; Trinacria princeps ; Trinacria racovitzae f. excavata ; Trinacria racovitzae ; Trinacria regina ; Trinacria rossica ; Trinacria semseyi ; Trinacria senta ; Trinacria simulacroides ; Trinacria simulacrum ; Trinacria sparsa ; Trinacria subcapitata ; Trinacria subcapitata ; Trinacria subcoronata ; Trinacria tessela ; Trinacria tripedalis ; Trinacria tristictia ; Trinacria tschestnovii ; Trinacria venosa f. major ; Trinacria venosa ; Trinacria ventricosa ; Trinacria vetustissima ; Trinacria weissflogii ; Trinacria wittii ;

Last updated November 07, 2025

Trinacria is an extinct genus of diatoms present during the early Eocene, named for its triskelion shape.^[1]

Fossilized shell of Trinacria aries
Trinacria ventricosa

References

↑ M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2014. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 21 December 2014.

This diatom article is a stub. You can help Wikipedia by expanding it.

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.

[algae_database-1] M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2014. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 21 December 2014.

[1]

Trinacria Temporal range: Early Eocene, 59.2–56 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓

Trinacria simulacrum
Scientific classification
Domain:	Eukaryota
Clade:	Sar
Clade:	Stramenopiles
Phylum:	Ochrophyta
Clade:	Diatomeae
Class:	Mediophyceae
Order:	Hemiaulales
Family:	Hemiaulaceae
Genus:	† Trinacria Heiberg [ da ] (1863)
Species
Trinacria acuminata Trinacria altar Trinacria anisimovae Trinacria antiqua Trinacria aries Trinacria barronii Trinacria cancellata Trinacria caudata Trinacria chenevierei Trinacria conifera Trinacria cornuta Trinacria coronata Trinacria cristata Trinacria deciusi Trinacria deciusii Trinacria ecostata Trinacria excavata Trinacria exsculpta Trinacria fimbriata Trinacria fragilis Trinacria grevillei Trinacria grunowii Trinacria heibergii Trinacria hystrix Trinacria indefinita Trinacria insipiens Trinacria insolita Trinacria interlineata Trinacria jeremiae Trinacria jordanii Trinacria kittoniana Trinacria lecointei Trinacria limpida Trinacria lingulata Trinacria media Trinacria mertzii Trinacria mucronata Trinacria muelleri Trinacria nitescens Trinacria pachtii Trinacria palmipes Trinacria pantocsekii Trinacria paradoxa Trinacria pileolus Trinacria praecellens Trinacria praetenuis Trinacria princeps Trinacria racovitzae f. excavata Trinacria racovitzae Trinacria regina Trinacria rossica Trinacria semseyi Trinacria senta Trinacria simulacroides Trinacria simulacrum Trinacria sparsa Trinacria subcapitata Trinacria subcapitata Trinacria subcoronata Trinacria tessela Trinacria tripedalis Trinacria tristictia Trinacria tschestnovii Trinacria venosa f. major Trinacria venosa Trinacria ventricosa Trinacria vetustissima Trinacria weissflogii Trinacria wittii