Polarornis
Polarornis is a genus of prehistoric bird, possibly an anserimorph. It contains a single species Polarornis gregorii, known from incomplete remains of one individual found on Seymour Island, Antarctica, in rocks which are dated to the Late Cretaceous (López de Bertodano Formation, about 66 Ma). The discovery of Polarornis gregorii was first announced by Sankar Chatterjee in 1989, but he did not describe and officially name the species until 2002. The name Polarornis had been announced unofficially several years prior to its official publication, in Chatterjee's 1997 book The Rise of Birds.
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Polarornis
Polarornis is a genus of prehistoric bird, possibly an anserimorph. It contains a single species Polarornis gregorii, known from incomplete remains of one individual found on Seymour Island, Antarctica, in rocks which are dated to the Late Cretaceous (López de Bertodano Formation, about 66 Ma). The discovery of Polarornis gregorii was first announced by Sankar Chatterjee in 1989, but he did not describe and officially name the species until 2002. The name Polarornis had been announced unofficially several years prior to its official publication, in Chatterjee's 1997 book The Rise of Birds.
has abstract
Polarornis estas genro de prah ...... e 1997 nome The Rise of Birds.
@eo
Polarornis gregorii Polarornis ...... 2,1 et 66,0 millions d'années.
@fr
Polarornis gregorii — викопний ...... ків тому) у Південній півкулі.
@uk
Polarornis is a genus of prehi ...... s 1997 book The Rise of Birds.
@en
極地鳥屬（學名：Polarornis）是（Anserimor ...... 其著作The Rise of Birds中使用了本屬的學名。
@zh
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994,013,110
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authority
Chatterjee 2002
@en
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fossil range
~
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parent authority
Chatterjee 2002
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taxon
Polarornis gregorii
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hypernym
comment
Polarornis estas genro de prah ...... e 1997 nome The Rise of Birds.
@eo
Polarornis gregorii Polarornis ...... 2,1 et 66,0 millions d'années.
@fr
Polarornis gregorii — викопний ...... ків тому) у Південній півкулі.
@uk
Polarornis is a genus of prehi ...... s 1997 book The Rise of Birds.
@en
極地鳥屬（學名：Polarornis）是（Anserimor ...... 其著作The Rise of Birds中使用了本屬的學名。
@zh
label
Polarornis gregorii
@uk
Polarornis
@en
Polarornis
@eo
Polarornis
@fr
極地鳥屬
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