2017
DOI: 10.1111/jeb.13050
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Discrete and morphometric traits reveal contrasting patterns and processes in the macroevolutionary history of a clade of scorpions

Abstract: Many palaeontological studies have investigated the evolution of entire body plans, generally relying on discrete character-taxon matrices. In contrast, macroevolutionary studies performed by neontologists have mostly focused on morphometric traits. Although these data types are very different, some studies have suggested that they capture common patterns. Nonetheless, the tests employed to support this claim have not explicitly incorporated a phylogenetic framework and may therefore be susceptible to confound… Show more

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Cited by 19 publications
(16 citation statements)
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“…6 and S21 of SI File 4). An increase in morphological and ecological innovation among Jurassic echinoids was also previously recognized using both discrete characters and geometric morphometrics (Hopkins and Smith 2015; Boivin et al 2018), data types that can support contradictory macroevolutionary patterns (Mongiardino Koch et al 2017). These previous studies recognized evolutionary innovations mainly among irregular echinoids, whereas our results show that multiple clades of regular echinoids (echinothurioids, calycineans and camarodonts) also contributed to this expansion of ecospace.…”
Section: Discussionmentioning
confidence: 76%
“…6 and S21 of SI File 4). An increase in morphological and ecological innovation among Jurassic echinoids was also previously recognized using both discrete characters and geometric morphometrics (Hopkins and Smith 2015; Boivin et al 2018), data types that can support contradictory macroevolutionary patterns (Mongiardino Koch et al 2017). These previous studies recognized evolutionary innovations mainly among irregular echinoids, whereas our results show that multiple clades of regular echinoids (echinothurioids, calycineans and camarodonts) also contributed to this expansion of ecospace.…”
Section: Discussionmentioning
confidence: 76%
“…On the other hand, Mongiardino Koch et al . (), in their study of scorpion disparity, found significant differences between discrete character and traditional morphometric methods, and they showed that these differences were greater than expected from the evolution of random data on a phylogeny. They also simulated discrete character data and compared this to simulated traditional morphometric data (not landmark coordinates).…”
Section: Discussionmentioning
confidence: 97%
“…On the other hand, Mongiardino Koch et al . () found disagreements when comparing traditional morphometric data and discrete characters, and they strongly advocated incorporating a phylogenetic framework.…”
mentioning
confidence: 99%
“…Nevertheless, Mongiardino Koch et al . () have shown that these two approaches yield contrasting patterns of disparity in their analysis of the scorpion genus Brachistosternus . This difference may reflect the relative power of continuous versus categorical approaches to characterizing morphology at different taxonomic scales.…”
Section: Osteostraci As a Case Studymentioning
confidence: 99%