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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Class Import
AquaMaps Resource Class
BOLDS resource for higher-level taxa
BOLDS resource for higher-level taxa
BOLDS images II Class
BOLDS resource for species-level taxa Class
BioImages resource Class
EOL Group on Flickr Class
EOL hotlist Scratchpad Class
  • Scaphopoda
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FALO Classification
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Fairbairn, 2013 Class
  • Scaphopoda
GBIF national node type records: Netherlands Class
GBIF national node type records: United Kingdom Class
Global Biotic Interactions Class Import Class
Appeltans et al, 2012
Integrated Taxonomic Information System (ITIS)
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Inventaire National du Patrimoine Naturel Class
MCZ resource Class
NCBI Taxonomy
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NMNH Invertebrate Zoology resource Class
NatureServe resource Class
OBIS depth range resource Class
Ocean Genome Resource- genomic DNA available Class
Paleobiology Database
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SERPENT resource Class
SPIRE resource
  • Scaphopoda
Sloan-CoML NameLink Project
  • Scaphopoda
Smithsonian type specimen data Class
Animal Diversity Web Descriptions
Wikimedia Commons Class
Wikimedia Commons
Wikipedia Class
iNaturalist Images Class


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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