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
Integrated Taxonomic Information System (ITIS)
view in classification
Animal Diversity Web Descriptions
BOLDS resource for species-level taxa
DiscoverLife map resource
  • Mesonychoteuthis hamiltoni
Global Biotic Interactions Species
IUCN Red List Import
Initial Tree of Life web Import
  • Mesonychoteuthis hamiltoni
BOLDS images II Species
NCBI Taxonomy
view in classification
OBIS Environmental Information
  • Mesonychoteuthis hamiltoni Robson, 1925
OBIS depth range resource
Ocean Genome Resource- genomic DNA available
IUCN Structured Data
Tree of Life web project
  • Mesonychoteuthis hamiltoni Robson, 1925
World Register of Marine Species (WoRMS)
view in classification
Wikimedia Commons


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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