Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
                                        
Specimen Records:22Public Records:15
Specimens with Sequences:22Public Species:5
Specimens with Barcodes:22Public BINs:4
Species:5         
Species With Barcodes:5         
          
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Barcode data

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Locations of barcode samples

Collection Sites: world map showing specimen collection locations for Nilssonia

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Wikipedia

Nilssonia (plant)

Nilssonia is an extinct genus of plants belonging to Bennettitales, which were similar to cycads in growth form and leaf morphology, but completely different in reproductive structures. Bennettitales were found across the globe during the Triassic, Jurassic and Cretaceous.[2][3][4]

Location of Palaeontological Sites[edit]

References[edit]

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Nilssonia (genus)

Nilssonia is a genus of softshell turtles (family Trionychidae). In many treatments, it is monotypic, with the single species Burmese Peacock Softshell (N. formosa). However, the supposed other genus of peacock softshells, Aspideretes, is even closer related to N. formosa than was previously believed. They differ only in the neural plates between the first pleural scale pair of the bony carapace, which are fused into one in N. formosa and unfused in the others.[1]

Thus, it has been proposed to unite the two genera under the older name, Nilssonia. As it seems, the closest living relatives of the Burmese peacock softshell are the Ganges Soft-shelled Turtle (A./N. gangeticus) and the Nagpur Soft-shelled Turtle (A./N. leithii), making the merging of the genera well warranted.[1]

Species[edit source | edit]

If the genera are united there are five species:

Footnotes[edit source | edit]

  1. ^ a b Praschag et al. (2007)

References[edit source | edit]

  • Praschag, P.; Hundsdörfer, A.K.; Reza, A.H.M.A. & Fritz, U. (2007): Genetic evidence for wild-living Aspideretes nigricans and a molecular phylogeny of South Asian softshell turtles (Reptilia: Trionychidae: Aspideretes, Nilssonia). Zool. Scripta 36(4): 301–310. doi:10.1111/j.1463-6409.2007.00282.x (HTML abstract)
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