1992
DOI: 10.1111/j.1502-3931.1992.tb01793.x
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Evolution des Asteropyginae (Trilobita) et variations eustatiques au Dévonien

Abstract: La sous‐famille Asteropyginae regroupe des Trilobites de la Famille Dalmanitidae qui se sont développés pendant environ 40 millions d'années, du Lochkovien au Frasnien (Dévonien). Leur extension géographique, des Appalaches à la Birmanie, et leur diversification spécifique (225 espèces environ), ont subi des variations pendant cette période. La comparaison des changements de paléoenvironnement avec l'évolution des Asteropyginae, en particulier sur la base des courbes de variations eustatiques, montre la possib… Show more

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Cited by 25 publications
(18 citation statements)
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References 13 publications
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“…gdoumontensis (Asselberghs, 1930) from the lower Lochkovian was reported as probably the oldest asteropygine (Haas, 1968;Morzadec, 1992). Unfortunately, due to the poor preservation of the material, it is currently not possible to formally assess its generic identity.…”
Section: Morzadecmentioning
confidence: 96%
“…gdoumontensis (Asselberghs, 1930) from the lower Lochkovian was reported as probably the oldest asteropygine (Haas, 1968;Morzadec, 1992). Unfortunately, due to the poor preservation of the material, it is currently not possible to formally assess its generic identity.…”
Section: Morzadecmentioning
confidence: 96%
“…argovensis but in the published photographs fenestrae are not evident in the thorax. In addition to the pleural fenestrae, Morzadec (1983, p. 142–143, 145, 147; 1992, p. 90) reported exoskeletal ‘perforations’ in the pygidial axial rings of various species of Heliopyge ; however, the structures referred to are apparently the apodemal pits in the inter‐ring furrows.…”
Section: Fenestrae In Fenestraspis and Other Trilobitesmentioning
confidence: 99%
“…• A, B -Pilletina zguidensis Morzadec, 2001; lateral and dorsal views of cephalon with part of the thorax; × 2; PIMUZ 28387.…”
Section: Zoophycos Large Nautiloidsmentioning
confidence: 99%