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
view in classification
Order
Gulf of Maine Area CoML resource Order
Animal Diversity Web Descriptions Order
Avibase - IOC World Bird Names (2011)
view in classification
Order
BHL: BioDivLibrary's photostream Order
  • Procellariiformes
BOLDS resource for higher-level taxa
BOLDS resource for higher-level taxa
BOLDS images II Order
BOLDS resource for species-level taxa Order
BioImages resource Order
Bird Life History Order
Birds resource Order
Clements Checklist resource
view in classification
Order
Conabio Order
Dutch Marine and Coastal Species Encyclopedia
  • Procellariiformes
EOL Group on Flickr Order
EOL Group on Flickr Order
EOL Group on Flickr Order
EOL hotlist Scratchpad Order
  • Procellariiformes
Environments
Taxonomic Hierarchy of COL-China 2012 Fauna Aves Order
Global Biotic Interactions Order
Global Biotic Interactions Order
Anage Data Order
IABIN resource Order
IUCN Red List Order
IUCN Red List
view in classification
Order
BioLib.cz Import
Integrated Taxonomic Information System (ITIS)
view in classification
Order
Inventaire National du Patrimoine Naturel Order
Taxonomic Hierarchy of COL-China 2012 Lei Aves Order
MCZ resource Order
NCBI Taxonomy
view in classification
Order
NatureServe resource Order
OBIS depth range resource Order
PNG_Birds Order
Paleobiology Database
view in classification
Order
Sloan-CoML NameLink Project
  • Procellariiformes
Monthly ARKive text import Order
IUCN Structured Data Order
Taxonomic Hierarchy of COL-China 2012
view in classification
Order
Tree of Life web project
  • Procellariiformes
World Register of Marine Species (WoRMS)
view in classification
Order
Wikimedia Commons Order
Wikimedia Commons
Wikipedia Order
iNaturalist Images Order

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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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