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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Phylum
Sloan-CoML NameLink Project
  • Chordata
Monthly ARKive text import Class
Monthly ARKive text import Phylum
Alaska Fisheries Science Center Phylum
AmphibiaWeb Phylum
AnAge database Phylum
Anage Data Phylum
Animal Diversity Web Descriptions Phylum
AquaMaps Resource Phylum
Arctic Ocean Biodiversity Phylum
AskNature Phylum
Avibase - IOC World Bird Names (2011)
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Phylum
BOLDS resource for higher-level taxa Phylum
BOLDS images II Phylum
BOLDS resource for species-level taxa Phylum
BioImages resource
BioImages resource
BioImages resource Phylum
BioKIDS Phylum
BioKIDS Critter Catalog Phylum
Biopix Phylum
Bird Life History Phylum
Birdlife International links resource Phylum
Birds resource Phylum
CMARZ resource Phylum
CalPhotos
  • Chordata,tunicata
Clements Checklist resource
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Phylum
Conabio Phylum
EOL Group on Flickr Order
EOL Group on Flickr Phylum
EOL Group on Flickr Phylum
EOL Group on Flickr
EOLspecies
  • Chordata
Environments Phylum
Environments Phylum
Environments Phylum
Fauna Aves Phylum
FishBase
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Phylum
Fishes resource Phylum
Global Biotic Interactions
  • Chordata
Herpetology Resource Phylum
Herring, 1987 Phylum
IABIN resource Phylum
INBio resource Phylum
IUCN Red List Phylum
IUCN Red List
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Phylum
BioLib.cz Import
Initial Tree of Life web Import
  • Chordata
Insect Visitors of Illinois Wildflowers Phylum
Integrated Taxonomic Information System (ITIS)
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Division
Lei Aves Phylum
Library of Alexandria Phylum
Library of Alexandria Phylum
MCZ resource Phylum
Mammal life history Phylum
Mammalia Phylum
Mammals Resource Phylum
MarLIN resource Phylum
Moorea Biocode
  • Chordata
Morphbank Resource Phylum
NCBI Taxonomy
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Phylum
NMNH Invertebrate Zoology resource Phylum
Natural History Museum Species of the day Phylum
OBIS Environmental Information
  • Chordata Linnaeus, 1758
OBIS depth range resource Phylum
Ocean Genome Resource- genomic DNA available Phylum
Paleobiology Database
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Unranked clade
Phenoscape Catfish Fin Shapes Phylum
Photosynth Resource Phylum
Primate specimen measurements Phylum
Protoanguilla palau video Phylum
Reid et al, 2012 Phylum
Invertebrates of the Salish Sea Phylum
SERPENT resource Phylum
SPIRE resource Phylum
Amphibians of Panama Phylum
South African Vertebrates
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Phylum
India Biodiversity Portal Species Data Phylum
IUCN Structured Data Phylum
Taxonomic Hierarchy of COL-China 2012
view in classification
Phylum
The Biodiversity of Tamborine Mountain Phylum
Tree of Life web project
  • Chordata
Vimeo resource Phylum
World Register of Marine Species (WoRMS)
view in classification
Phylum
WhyReef kids content Phylum
Wikimedia Commons Phylum
Wikimedia Commons Phylum
Wikimedia Commons
Wikimedia Commons
Wikimedia Commons
Wikimedia Commons
Wikimedia Commons
Wikimedia Commons
Wikimedia Commons
Wikimedia Commons
Wikipedia Phylum
Wikipedia Order
Wikipedia Phylum
ZooKeys Phylum
iNaturalist Images Phylum
iSpot southern Africa Phylum
  • Chordata
xeno-canto Bird Sounds Phylum

Disclaimer

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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