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
view in classification
Initial Tree of Life web Import
  • Sepiidae
AquaMaps Resource Family
BOLDS resource for higher-level taxa
BOLDS resource for higher-level taxa Family
BOLDS images II Family
BOLDS resource for species-level taxa Family
BioImages resource Family
Biopix Family
EOL Group on Flickr
EOL Group on Flickr Family
EOL Metrics Family
  • Sepiidae
EOL hotlist Scratchpad Family
  • Sepiidae
Encyclopedia of Marine Life of Britain and Ireland Resource Family
FALO Classification
view in classification
Femorale resource Family
Freshwater and Marine Image Bank, University Libraries, U Washington
Global Biotic Interactions Family
Global Biotic Interactions Family
IUCN Red List Family Import Family Import
Animal Diversity Web Descriptions Family
Integrated Taxonomic Information System (ITIS)
view in classification
Inventaire National du Patrimoine Naturel Family
MarLIN resource Family
NCBI Taxonomy
view in classification
NMNH Invertebrate Zoology resource Family
NCBI, GGBN, GBIF, BHL, BOLDS data coverage Family
  • Sepiidae
OBIS Environmental Information
  • Sepiidae Leach, 1817
OBIS depth range resource Family
Ocean Genome Resource- genomic DNA available Family
Paleobiology Database
view in classification
Smithsonian type specimen data Family
Monthly ARKive text import Family
IUCN Structured Data Family
Tree of Life web project
  • Sepiidae Keferstein 1866
Undersea Production test 2 Family
Vimeo resource Family
Wikimedia Commons
Wikimedia Commons Family
Wikimedia Commons Genus
Wikipedia Family
iNaturalist Images 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.

To request an improvement, please leave a comment on the page. Thank you!