Scientists aim to describe a single 'tree of life' that reflects the evolutionary relationships of living things. However, evolutionary relationships are a matter of ongoing discovery, and there are different opinions about how living things should be grouped and named. EOL reflects these differences by supporting several different scientific 'classifications'. Some species have been named more than once. Such duplicates are listed under synonyms. EOL also provides support for common names which may vary across regions as well as languages.

Preferred marks the preferred classification for this taxon.

Recognized By Rank Classification
World Register of Marine Species (WoRMS)
view in classification
NCBI Taxonomy
view in classification
Cris DB
Edwards et al, 2015
view in classification
Genus Import Import Genus
  • Synechococcus
Arctic algae Genus
OBIS Environmental Information
  • Synechococcus Nägeli, 1849
OBIS depth range resource
Olenina et al, 2006
Sloan-CoML NameLink Project
  • Synechococcus
view in classification
Wikimedia Commons
Wikimedia Commons Genus
Wikipedia Genus


EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

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