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
Species 2000 & ITIS Catalogue of Life: April 2013
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Family Import
BOLDS images II Family
BOLDS resource for species-level taxa Family
EOL Metrics Family
  • Architeuthidae
EOL hotlist Scratchpad Family
  • Architeuthidae
FALO Classification
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GBIF national node classification resource: Germany Family
Global Biotic Interactions Family
Global Biotic Interactions Family
IUCN Red List Family Import Family
BOLDS resource for higher-level taxa
Integrated Taxonomic Information System (ITIS)
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NCBI Taxonomy
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NMNH Invertebrate Zoology resource Family
Natural History Museum Species of the day Family
NCBI, GGBN, GBIF, BHL, BOLDS data coverage Family
  • Architeuthidae
OBIS Environmental Information
  • Architeuthidae Pfeffer, 1900
OBIS depth range resource Family
Ocean Genome Resource- genomic DNA available Family
Animal Diversity Web Descriptions Family
IUCN Structured Data Family
Wikimedia Commons Family
Wikipedia Family


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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