Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
Specimen Records: 33
Specimens with Sequences: 23
Specimens with Barcodes: 14
Species: 2
Species With Barcodes: 2
Public Records: 13
Public Species: 2
Public BINs: 2
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Wikipedia

Arapaimidae

Arapaimidae is a family of freshwater osteoglossiform fishes known as the bonytongues. This family includes the arapaimas of the Amazon and Essequibo basins in South America, and the African arowana from Africa.[1] This family is sometimes considered to be a part of the arowana family, Osteoglossidae.

A genetic study shows that the Arapaimidae (arapaimas and African arowana) diverged from Osteoglossidae about 220 million years ago, during the Late Triassic. Within Osteoglossidae, the lineage leading to the South American Osteoglossum arowanas diverged about 170 million years ago, during the Middle Jurassic. The Asian and Australian arowanas in the genus Scleropages separated about 140 million years ago, during the Early Cretaceous.[2]

References[edit]

  1. ^ a b Froese, Rainer, and Daniel Pauly, eds. (2013). "Arapaimidae" in FishBase. August 2013 version.
  2. ^ Kumazawa, Yoshinori (2003). "The reason the freshwater fish arowana live across the sea". Quarterly Journal Biohistory (Winter). Archived from the original on 5 February 2012. Retrieved 19 July 2014. 
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