Reference : The macroevolutionary landscape of short-necked plesiosaurians
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
Life sciences : Multidisciplinary, general & others
Life sciences : Zoology
http://hdl.handle.net/2268/251288
The macroevolutionary landscape of short-necked plesiosaurians
English
Fischer, Valentin mailto [Université de Liège - ULiège > Département de géologie > Evolution and diversity dynamics lab >]
Maclaren, James mailto [Université de Liège - ULiège > Département de géologie > Evolution and diversity dynamics lab >]
Soul, Laura C. [> >]
Bennion, Rebecca mailto [Université de Liège - ULiège > Département de géologie > Evolution and diversity dynamics lab >]
Druckenmiller, Patrick Scott [> >]
Benson, Roger B. J. [> >]
2020
Scientific Reports
Nature Publishing Group
10
16434
1--12
Yes (verified by ORBi)
International
20452322
London
United Kingdom
[en] Plesiosauria ; Evolution ; Disparity ; Ecomorphology ; niche ; Macroevolution
[en] Throughout their evolution, tetrapods have repeatedly colonised a series of ecological niches in marine ecosystems, producing textbook examples of convergent evolution. However, this evolutionary phenomenon has typically been assessed qualitatively and in broad-brush frameworks that imply simplistic macroevolutionary landscapes. We establish a protocol to visualize the density of trait space occupancy and thoroughly test for the existence of macroevolutionary landscapes. We apply this protocol to a new phenotypic dataset describing the morphology of short-necked plesiosaurians, a major component of the Mesozoic marine food webs (ca. 201 to 66 Mya). Plesiosaurians evolved this body plan multiple times during their 135-million-year history, making them an ideal test case for the existence of macroevolutionary landscapes. We find ample evidence for a bimodal craniodental macroevolutionary landscape separating latirostrines from longirostrine taxa, providing the first phylogenetically-explicit quantitative assessment of trophic diversity in extinct marine reptiles. This bimodal pattern was established as early as the Middle Jurassic and was maintained in evolutionary patterns of short-necked plesiosaurians until a Late Cretaceous (Turonian) collapse to a unimodal landscape comprising longirostrine forms with novel morphologies. This study highlights the potential of severe environmental perturbations to profoundly alter the macroevolutionary dynamics of animals occupying the top of food chains.
Geology - GEOLOGY
Fonds de la Recherche Scientifique - F.R.S.-FNRS
SEASCAPE
Researchers ; Professionals ; Students ; General public
http://hdl.handle.net/2268/251288
10.1038/s41598-020-73413-5
http://www.nature.com/articles/s41598-020-73413-5

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Open access
Fischer&al2020 the macroevolutionary landscape of short‐necked plesiosaurians.pdfPublisher postprint3.85 MBView/Open

Additional material(s):

File Commentary Size Access
Open access
Supp_Info.pdfSupplementary information1.65 MBView/Open
Open access
Supp_files.zipSupplementary files2 MBView/Open

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.