Eocene relatives of cod icefishes (Perciformes: Notothenioidei) from Seymour Island, Antarctica
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Eocene relatives of cod icefishes (Perciformes: Notothenioidei) from Seymour Island, Antarctica. / Bieńkowska-Wasiluk, Małgorzata ; Bonde, Niels Christensøn; Møller, Peter Rask; Gaździcki, Andrzej.
I: Geological Quarterly, Bind 57, Nr. 4, 2013, s. 567–582.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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T1 - Eocene relatives of cod icefishes (Perciformes: Notothenioidei) from Seymour Island, Antarctica
AU - Bieńkowska-Wasiluk, Małgorzata
AU - Bonde, Niels Christensøn
AU - Møller, Peter Rask
AU - Gaździcki, Andrzej
PY - 2013
Y1 - 2013
N2 - Fragmentary skull bones and vertebra from the Upper Eocene La Meseta Formation on Seymour (Marambio) Island, Antarctic Peninsula have been described as gadiform fishes, informally named “Mesetaichthys”. Here we describe jaws as Mesetaichthys jerzmanskae n. g. and n. sp., and refer this taxon to the perciform suborder Notothenioidei. This group is almost unknown as fossils. Similarities to the living, ‘primitive’ nototheniid Dissostichus eleginoides are indicated in the dentition. Gadiform evolution in the Paleocene-Eocene, and the possibility of a correlation between the origin and evolution of notothenioids in connection with the deterioration of the climate in Antarctica during the Late Eocene-Oligocene is discussed.
AB - Fragmentary skull bones and vertebra from the Upper Eocene La Meseta Formation on Seymour (Marambio) Island, Antarctic Peninsula have been described as gadiform fishes, informally named “Mesetaichthys”. Here we describe jaws as Mesetaichthys jerzmanskae n. g. and n. sp., and refer this taxon to the perciform suborder Notothenioidei. This group is almost unknown as fossils. Similarities to the living, ‘primitive’ nototheniid Dissostichus eleginoides are indicated in the dentition. Gadiform evolution in the Paleocene-Eocene, and the possibility of a correlation between the origin and evolution of notothenioids in connection with the deterioration of the climate in Antarctica during the Late Eocene-Oligocene is discussed.
U2 - 10.7306/gq.1112
DO - 10.7306/gq.1112
M3 - Journal article
VL - 57
SP - 567
EP - 582
JO - Geological Quarterly
JF - Geological Quarterly
SN - 1641-7291
IS - 4
ER -
ID: 97080977