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Diatoms of North America
Practitioners
Morphology
Centric
Araphid
Eunotioid
Symmetric Biraphid
Monoraphid
Asymmetric Biraphid
Epithemioid
Nitzschioid
Surirelloid
Genera
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Glossary
About Us
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What are diatoms?
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Holly_23_frag_MIX_022.jpg
Species
Asterionella formosa
Site ID
INSTAAR DIATOM Collection 13391
Name
Sediment 5.5 cm core depth, Holly Lake, Grand Teton National Park
Caption
External view, mid section of valve
Coordinates
43.7927, -110.7980
Notes
Marginal spines are widely spaced from one another
Scalebar = 3 µm