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Ceratopsida dinosauriers migrationsmönster under krittiden baserat på paleobiogeografi och fylogeni

Rönning, Lydia LU (2017) In Examensarbeten i geologi vid Lunds universitet GEOL01 20171
Department of Geology
Abstract (Swedish)
The infraorder Ceratopsia, or horned dinosaurs, within the clade Dinosauria, shows a specific, restrained migratory pattern. Therefore, the classical view presented by Sereno (1999), of a monodirectal migratory event from Asia to North America via the Bering’s Strait has been commonly accepted in its simplicity. Another hypothe-sis presented during the same time by Chinnery (1998) suggests a migration route from Asia to North America through prehistoric Europe; however, this scenario has largely been rejected due to its bold nature. In order to evaluate the different hypophysis, this study analyses publications dealing with the phylogeny and paleobiogeo-graphy of horned dinosaurs. Yet, problems in mapping the migratory patterns are many:... (More)
The infraorder Ceratopsia, or horned dinosaurs, within the clade Dinosauria, shows a specific, restrained migratory pattern. Therefore, the classical view presented by Sereno (1999), of a monodirectal migratory event from Asia to North America via the Bering’s Strait has been commonly accepted in its simplicity. Another hypothe-sis presented during the same time by Chinnery (1998) suggests a migration route from Asia to North America through prehistoric Europe; however, this scenario has largely been rejected due to its bold nature. In order to evaluate the different hypophysis, this study analyses publications dealing with the phylogeny and paleobiogeo-graphy of horned dinosaurs. Yet, problems in mapping the migratory patterns are many: Firstly, several findings that contradict the classical picture have been overlooked. Further, there is a fossil underrepresentation during critical periods and from critical places. Lastly, there are disagreements among scientists, both concerning the relat-ionships within Ceratopsia and in reconstructing the paleogeography of the Cretaceous Period. What can be said at the moment is that the migrations of horned dinosaurs were more complex than the classical idea proposes. The migrations probably were more global, had more routes, more directions, and happened at more stages than have hitherto been assumed. (Less)
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author
Rönning, Lydia LU
supervisor
organization
course
GEOL01 20171
year
type
M2 - Bachelor Degree
subject
keywords
Ceratopsia, Cretaceous, Migration, Beringia, Paleobiogeography
publication/series
Examensarbeten i geologi vid Lunds universitet
report number
510
language
Swedish
id
8922158
date added to LUP
2017-08-18 01:41:30
date last changed
2017-08-18 01:41:30
@misc{8922158,
  abstract     = {The infraorder Ceratopsia, or horned dinosaurs, within the clade Dinosauria, shows a specific, restrained migratory pattern. Therefore, the classical view presented by Sereno (1999), of a monodirectal migratory event from Asia to North America via the Bering’s Strait has been commonly accepted in its simplicity. Another hypothe-sis presented during the same time by Chinnery (1998) suggests a migration route from Asia to North America through prehistoric Europe; however, this scenario has largely been rejected due to its bold nature. In order to evaluate the different hypophysis, this study analyses publications dealing with the phylogeny and paleobiogeo-graphy of horned dinosaurs. Yet, problems in mapping the migratory patterns are many: Firstly, several findings that contradict the classical picture have been overlooked. Further, there is a fossil underrepresentation during critical periods and from critical places. Lastly, there are disagreements among scientists, both concerning the relat-ionships within Ceratopsia and in reconstructing the paleogeography of the Cretaceous Period. What can be said at the moment is that the migrations of horned dinosaurs were more complex than the classical idea proposes. The migrations probably were more global, had more routes, more directions, and happened at more stages than have hitherto been assumed.},
  author       = {Rönning, Lydia},
  keyword      = {Ceratopsia,Cretaceous,Migration,Beringia,Paleobiogeography},
  language     = {swe},
  note         = {Student Paper},
  series       = {Examensarbeten i geologi vid Lunds universitet},
  title        = {Ceratopsida dinosauriers migrationsmönster under krittiden baserat på paleobiogeografi och fylogeni},
  year         = {2017},
}