154,169 species and infraspecific names are in the database, 21,058 images, 59,692 bibliographic items, 415,380 distributional records.

Taxonomy Browser

Family: Hemidiscaceae

Higher Taxonomy

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Rank

Name

Authority  

# Species

 

Empire

Eukaryota

Chatton  

44,997

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Kingdom

Chromista

Cavalier-Smith  

24,101

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Phylum

Bacillariophyta

Karsten  

15,188

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Subphylum

Coscinodiscophytina

Medlin & Kaczmarska  

1,170

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Class

Coscinodiscophyceae

Round & R.M.Crawford  

1,170

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Subclass

Coscinodiscophycidae

Round & R.M.Crawford  

608

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Order

Coscinodiscales

F.E.Round & R.M.Crawford  

499

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Family

Hemidiscaceae

Hendey ex Hasle  

141

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Subordinate taxa

Rank

Name

Authority  

Fossil

# Species

 

Genus

Actinocyclus

Ehrenberg  

92

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Genus

Araniscus

S.Komura  

Y

4

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Genus

Azpeitia

M.Peragallo  

23

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Genus

Charcotia

M.Peragallo  

0

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Genus

Charcotiella

S.Blanco & W.E.Wetzel  

13

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Genus

Euodia

Bailey ex Ralfs  

2

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Genus

Fovirhombus

 

0

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Genus

Hemidiscus

Wallich  

10

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Genus

Pontodiscus

Temniskova-Topalova & Sheshukova-Poretzkaya  

Y

1

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Genus

Pseudoguinardia

von Stosch  

1

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Genus

Roperia

Grunow ex Pelletan  

4

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Genus

Undatodiscus

Lupikina  

Y

2

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