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History
West Indian Ocean coelacanth
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The West Indian Ocean coelacanth is a crossopterygian, one of two extant species of coelacanth, a rare order of vertebrates more closely related to lungfish and tetrapods than to the common ray-finned fishes. The other extant species is the Indonesian coelacanth.
Image: Latimeria chalumnae
Image: Latimeria chalumnae
Image: Latimeria chalumnae replica
Image: Latimeria chalumnae replica
Latimeria chalumnae model in the Oxford University Museum of Natural History
Latimeria chalumnae model in the Oxford University Museum of Natural History
Preserved specimen of Latimeria chalumnae in the Natural History Museum, Vienna, Austria [length: 170 cm (67 in) - weight: 60 kg (130 lb)]. This speci
Preserved specimen of Latimeria chalumnae in the Natural History Museum, Vienna, Austria [length: 170 cm (67 in) - weight: 60 kg (130 lb)]. This specimen was caught on 18 October 1974, next to Salimani/Selimani (Grand Comoro, Comoro Islands) 11°48′40.7″S 43°16′3.3″E / 11.811306°S 43.267583°E / -11.811306; 43.267583.
Sarcopterygii
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Sarcopterygii — sometimes considered synonymous with Crossopterygii — is a clade including both a group of bony fish commonly referred to as lobe-finned fish, and tetrapods. They are characterised by prominent muscular limb buds (lobes) within their fins, which are supported by articulated appendicular skeletons. This is in contrast to the other clade of bony fish, the Actinopterygii, which have only skin-covered bony spines supporting the fins.
Guiyu oneiros, the earliest-known bony fish, lived during the Late Silurian, 419 million years ago). It has the combination of both ray-finned and lob
Guiyu oneiros, the earliest-known bony fish, lived during the Late Silurian, 419 million years ago). It has the combination of both ray-finned and lobe-finned features, although analysis of the totality of its features places it closer to lobe-finned fish.
Tooth from the sarcopterygian Onychodus from the Devonian of Wisconsin
Tooth from the sarcopterygian Onychodus from the Devonian of Wisconsin
Image: Latimeria Paris
Image: Latimeria Paris
Life restoration of Sparalepis tingi and other fauna from the Silurian of Yunnan
Life restoration of Sparalepis tingi and other fauna from the Silurian of Yunnan