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
World Register of Marine Species (WoRMS)
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Class
Integrated Taxonomic Information System (ITIS)
view in classification
Class
Anage Data Class
Animal Diversity Web Descriptions Class
Animal Diversity Web Descriptions
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
BOLDS images II Class
BOLDS resource for species-level taxa Class
BioImages resource Class
Biopix
  • Echinoidea
Creaturecast
EOL Group on Flickr Class
EOL Group on Flickr Order
EOL Group on Flickr
Encyclopedia of Marine Life of Britain and Ireland Resource Class
IRMNG
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Class
Fairbairn, 2013 Class
  • Echinoidea
Freshwater and Marine Image Bank, University Libraries, U Washington
Global Biotic Interactions
  • Echinoidea
IUCN Red List Class
IUCN Red List
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Class
BioLib.cz Import Class
BioLib.cz Import
AnAge database Class
Inventaire National du Patrimoine Naturel Class
MCZ resource Class
MCZ resource
MarLIN resource Class
Moorea Biocode
  • Echinoidea
NCBI Taxonomy
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Class
NMNH Invertebrate Zoology resource Class
Natural History Museum Species of the day Class
NatureServe resource Class
OBIS depth range resource Order
OBIS depth range resource Class
Ocean Genome Resource- genomic DNA available Class
Paleobiology Database
view in classification
Class
Reid et al, 2012 Class
Invertebrates of the Salish Sea Class
SERPENT resource Class
SPIRE resource
Sloan-CoML NameLink Project
  • Echinoidea
Species 2000 & ITIS Catalogue of Life: April 2013
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Class
IUCN Structured Data Class
Taxonomic Hierarchy of COL-China 2012
view in classification
Class
Vimeo resource Class
Vimeo resource
  • Echinoidea
Monthly ARKive text import Class
Wikimedia Commons Class
Wikimedia Commons
Wikipedia Class
iNaturalist Images Class

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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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