Difference between revisions of "Palaeognathae"

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| width=800 colspan=5 | A ratite is any of a diverse group of large, flightless birds of the superorder Palaeognathae. There is still some controversy regarding the systematics involved. Some sources state that Ratites are synonymous with Struthioniformes, while other sources state that Ratites are the same group, only that the order Struthioniformes contains only the Ostrich and possibly the Elephant Bird. Ratites belong to the modern bird superorder Palaeognathae which consists of ratites and tinamous (compare to Neognathae). Unlike other flightless birds, the ratites have no keel on their sternum – hence the name from the Latin ratis (for raft). Without this to anchor their wing muscles, they could not fly even if they were to develop suitable wings.
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| width=780 colspan=5 | A ratite is any of a diverse group of large, flightless birds of the superorder Palaeognathae. There is still some controversy regarding the systematics involved. Some sources state that Ratites are synonymous with Struthioniformes, while other sources state that Ratites are the same group, only that the order Struthioniformes contains only the Ostrich and possibly the Elephant Bird. Ratites belong to the modern bird superorder Palaeognathae which consists of ratites and tinamous (compare to Neognathae). Unlike other flightless birds, the ratites have no keel on their sternum – hence the name from the Latin ratis (for raft). Without this to anchor their wing muscles, they could not fly even if they were to develop suitable wings.
  
 
Most parts of the former Gondwana Supercontinent have ratites, or did have until the fairly recent past. Their closest living relatives are the tinamous of South America.
 
Most parts of the former Gondwana Supercontinent have ratites, or did have until the fairly recent past. Their closest living relatives are the tinamous of South America.
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'''Get back to [[Aves]]'''
 
'''Get back to [[Aves]]'''
 
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| width=160 | [[File:Cassowary.jpg|60px|link= Cassowary]] [[Cassowary]]
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| width=130 | [[File:Cassowary.jpg|60px|link= Cassowary]] [[Cassowary]]
| width=160 | [[File:Emu.JPG|60px|link= Emu]] [[Emu]]
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| width=130 | [[File:Emuary.JPG|60px|link= Emuarius]] †[[Emuarius]]
| width=160 | [[File:Kiwi.jpg|60px|link= Kiwi]] [[Kiwi]]
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| width=130 | [[File:Emu.JPG|60px|link= Emu]] [[Emu]]
| width=160 | [[File:Ostrich.jpg|60px|link= Ostrich]] [[Ostrich]]
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| width=130 | [[File:Kiwi.jpg|60px|link= Kiwi]] [[Kiwi]]
| width=160 | [[File:Rhea.jpg|60px|link= Rhea]] [[Rhea]]
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| width=130 | [[File:Ostrich.jpg|60px|link= Ostrich]] [[Ostrich]]
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| width=130 | [[File:Rhea.jpg|60px|link= Rhea]] [[Rhea]]
  
 
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Revision as of 04:15, 12 August 2016

A ratite is any of a diverse group of large, flightless birds of the superorder Palaeognathae. There is still some controversy regarding the systematics involved. Some sources state that Ratites are synonymous with Struthioniformes, while other sources state that Ratites are the same group, only that the order Struthioniformes contains only the Ostrich and possibly the Elephant Bird. Ratites belong to the modern bird superorder Palaeognathae which consists of ratites and tinamous (compare to Neognathae). Unlike other flightless birds, the ratites have no keel on their sternum – hence the name from the Latin ratis (for raft). Without this to anchor their wing muscles, they could not fly even if they were to develop suitable wings.

Most parts of the former Gondwana Supercontinent have ratites, or did have until the fairly recent past. Their closest living relatives are the tinamous of South America.

For more information, visit the Wikipedia entry.

Get back to Aves

Cassowary.jpg Cassowary 60pxEmuarius Emu.JPG Emu Kiwi.jpg Kiwi Ostrich.jpg Ostrich Rhea.jpg Rhea