Tag Archives: Rallus sp.

Rallus sp. ‘Fernando de Noronha’

Fernando de Noronha Rail (Rallus sp.)

The Fernando de Noronha Rail is an enigmatic bird known from subfossil remains that had been found in the late 1970s on the island of Fernando de Noronha, 354 km offshore the coast of Brazil.:

Remains of a new species of rail (Rallidae) were also found, bringing the total known land-bird fauna to four species. Most of the elements of the skeleton, from several different individuals, are represented. This was a medium- size rail with the wings reduced, but to a lesser extent than in many flightless species. It does not appear to be particularly close morphologically to any of the species of rails from mainland Brazil. I have briefly alluded to this form elsewhere …, but it has yet to be formally described.

The form may have been a member of the genus Laterallus or Rallus, however, the species has still not been described. [1]

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References:

[1] S. L. Olson: Natural history of vertebrates on the Brazilian islands of the mid South Atlantic. National Geographic Society Research Reports 13: 481-492. 1981

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edited: 03.05.2022

Rallus sp. ‘Terceira’

Terceira Rail (Rallus sp.)

This form is known from not less than 13 associated skeletons which were recovered from cave deposits on the island of Terceira, one of the Azores Islands, Portugal, most of which, however, with fragmentary bones only.

The Terceira Rail was a member of the genus Rallus but has not yet being described. [1]

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There is a very exceptional specimen that can be assigned to this species that was found in Algar do Carvão, a chimney of a former volcano in the center of Terceina. This specimen is of an individual that was mummified by natural processes and is now preserved as a three-dimensional body still bearing soft body parts, skin and feathers “wrapped” in a silicified crust. [1]

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References:

[1] Josep Antoni Alcover; Harald Pieper; Fernando Pereira; Juan Carlos Rando: Five new extinct species of rails (Aves: Gruiformes: Rallidae) from the Macaronesian Islands (North Atlantic Ocean). Zootaxa 4057(2): 151-190. 2015

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edited: 10.09.2019

Rallus sp. ‘Santa Maria’

Santa Maria Rail (Rallus sp.)

This form is known from ten subfossil bones, most of them fragmentary only, collected on the island of Santa Maria in the Azores group, Portugal.

The Santa Maria Rail most likely was a distinct species. [1]

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References:

[1] Josep Antoni Alcover; Harald Pieper; Fernando Pereira; Juan Carlos Rando: Five new extinct species of rails (Aves: Gruiformes: Rallidae) from the Macaronesian Islands (North Atlantic Ocean). Zootaxa 4057(2): 151-190. 2015

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edited: 10.09.2019

Rallus sp. ‘Graciosa’

Graciosa Rail (Rallus sp.)

This up to now unnamed form is known from 21 subfossil bones, 12 of them only fragments, collected in 2014 on the island of Graciosa in the Azores, Portugal.

The form has not yet being described but can be assigned to the genus Rallus and most likely was a distinct species. [1]

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References:

[1] Josep Antoni Alcover; Harald Pieper; Fernando Pereira; Juan Carlos Rando: Five new extinct species of rails (Aves: Gruiformes: Rallidae) from the Macaronesian Islands (North Atlantic Ocean). Zootaxa 4057(2): 151-190. 2015

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edited: 10.09.2019