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.

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Preferred marks the preferred classification for this taxon.

Recognized By Rank Classification
Species 2000 & ITIS Catalogue of Life: April 2013
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Class
Tree of Life web project
  • Cephalopoda Cuvier, 1797
Animal Diversity Web Descriptions
Animal Diversity Web Descriptions Class
Appeltans et al, 2012
AquaMaps Resource Class
AskNature Class
Anoka Ramsey Community College BIOL 1107 Fall 2010 Class
BOLDS resource for higher-level taxa
BOLDS resource for higher-level taxa
BOLD images
  • Cephalopoda
BOLDS images II Class
BOLDS resource for species-level taxa Class
BioImages resource Class
EOL Group on Flickr Class
EOL Group on Flickr Class
EOL Group on Flickr Class
EOLspecies
  • Cephalopoda
Encyclopedia of Marine Life of Britain and Ireland Resource Class
Environments
Global Biotic Interactions
  • Cephalopoda
IUCN Red List Class
BioLib.cz Import Class
BioLib.cz Import
Initial Tree of Life web Import
  • Cephalopoda
Integrated Taxonomic Information System (ITIS)
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Class
Library of Alexandria Class
Library of Alexandria
MCZ resource Class
MarLIN resource Class
NCBI Taxonomy
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Class
NMNH Invertebrate Zoology resource Class
Natural History Museum Species of the day Class
NatureServe resource Class
OBIS Environmental Information
  • Cephalopoda Cuvier, 1795
OBIS depth range resource Class
Ocean Genome Resource- genomic DNA available Class
Paleobiology Database
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Class
Invertebrates of the Salish Sea Class
Invertebrates of the Salish Sea Class
SERPENT resource Class
SPIRE resource
  • Cephalopoda
Sloan-CoML NameLink Project
  • Cephalopoda
India Biodiversity Portal Species Data Class
IUCN Structured Data Class
Monthly ARKive text import Class
World Register of Marine Species (WoRMS)
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Class
Wikimedia Commons
Wikimedia Commons Class
Wikimedia Commons
Wikimedia Commons
Wikimedia Commons
Wikimedia Commons
Wikimedia Commons
Wikipedia Class
Wikipedia Class
Wikipedia Class
Wikipedia Class
Wikipedia Class
Wikipedia Class
iNaturalist Images Class

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