&lt;I&gt;Galloisiana olgae&lt;/I&gt; sp. nov. (Grylloblattodea: Grylloblattidae) and the Paleobiology of a Relict Order of Insects

Vršanský, Peter; Storozhenko, Sergei Y.; Labandeira, Conrad C.; Ihringova, Petra

doi:10.1603/0013-8746(2001)094[0179:gosngg]2.0.co;2

Cited by 28 publications

(24 citation statements)

References 13 publications

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“…Their phylogenetic positions are not well constrained, but both are relict orders, having a previously wider distribution (Vrsansky et al 2001;Engel & Grimaldi 2004). …”

Section: Discussionmentioning

confidence: 99%

Many hexapod groups originated earlier and withstood extinction events better than previously realized: inferences from supertrees

2010

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Comprising over half of all described species, the hexapods are central to understanding the evolution of global biodiversity. Direct fossil evidence suggests that new hexapod orders continued to originate from the Jurassic onwards, and diversity is presently higher than ever. Previous studies also suggest that several shifts in net diversification rate have occurred at higher taxonomic levels. However, their inferred timing is phylogeny dependent. We re-examine these issues using the supertree approach to provide, to our knowledge, the first composite estimates of hexapod order-level phylogeny. The Purvis matrix representation with parsimony method provides the most optimal supertree, but alternative methods are considered. Inferring ghost ranges shows richness of terminal lineages in the order-level phylogeny to peak just before the end-Permian extinction, rather than the present day, indicating that at least 11 more lineages survived this extinction than implied by fossils alone. The major upshift in diversification is associated with the origin of wings/wing folding and for the first time, to our knowledge, significant downshifts are shown associated with the origin of species-poor taxa (e.g. Neuropterida, Zoraptera). Polyneopteran phylogeny, especially the position of Zoraptera, remains important resolve because this influences findings regarding shifts in diversification. Our study shows how combining fossil with phylogenetic information can improve macroevolutionary inferences.

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“…Their phylogenetic positions are not well constrained, but both are relict orders, having a previously wider distribution (Vrsansky et al 2001;Engel & Grimaldi 2004). …”

Section: Discussionmentioning

confidence: 99%

Many hexapod groups originated earlier and withstood extinction events better than previously realized: inferences from supertrees

2010

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“…Many such taxa are argued to have dispersed between Asia and North America during the Paleogene period (66 to 23 Ma), despite the physical separation of the two continents at that time (Manchester, ; Maekawa & Nalepa, ). However, researchers have assumed that Grylloblatta dispersed to North America during the glacial cycles of the Pliocene–Pleistocene period, making use of the intermittent Beringian land bridge (Vrsansky et al , ; Jarvis & Whiting, ). While this hypothesis makes sense in light of their cold‐specialized ecology, recent genetic estimates of the divergence time between Grylloblatta and its Asian relatives are incompatible with the Pliocene–Pleistocene epochs (Schoville & Kim, ; Schoville et al , ).…”

Section: A Global Biogeography Of Grylloblattidaementioning

confidence: 99%

Current status of the systematics and evolutionary biology of Grylloblattidae (Grylloblattodea)

Schoville

2014

Systematic Entomology

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This year marks a century since the description of Grylloblatta campodeiformis Walker (1914) and the enigmatic insect family Grylloblattidae (Grylloblattodea 1 ). In the past decade, our understanding of the evolutionary diversification of grylloblattids has grown, giving prospect to elaborating other aspects of their biology, in particular their ecology, physiology and behaviour. Specific accomplishments include clarification and extension of grylloblattid geographic distributions (Schoville,

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“…Unfortunately, our genetic sampling does not include Grylloblattella from northern China or central Russia (Bai et al 2010, Storozhenko andOliger 1984), which is extremely rare in collections. Due to the rich fossil record of ancestral Grylloblattida in central Asia (Vrsansky et al 2001), we expect that Grylloblatella species will form a separate lineage sister to all other Grylloblattidae.…”

Section: Discussionmentioning

confidence: 99%

Phylogenetic Relationships and Relictualism of Rock-Crawlers (Grylloblattodea: Grylloblattidae) in Cave and Mountain Habitats of Korea

Schoville¹,

Kim²

2011

Annals of the Entomological Society of America

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Rock-crawlers (Grylloblattodea: Grylloblattidae) in northeastern Asia are low-vagility insects that are restricted to cool temperate forests and mountainous regions. Morphologically distinguishable species are similar ecologically and show narrow endemism and a patchy distribution. As a result, grylloblattids are hypothesized to be relict species that have persisted in situ over long periods of climatic and geological change (Storozhenko and Oliger 1984). We investigate whether the diversification pattern of Asian grylloblattids reflects long-term persistence and divergence due to geological events, or more recent diversification in response to climatic change. Using multilocus genetic data, we examine the phylogenetic relationship to other Asian Grylloblattidae and the geographic pattern of diversification of Korean rock-crawlers, Galloisiana Caudell & King (1924) and Namkungia Storozhenko & Park (2002). Our analysis reveals a monophyletic grouping of Korean species, with multiple cryptic lineages and restricted geographical distributions. Based on genetic data, Korean species are closely related to Japanese Galloisiana. Using a Bayesian relaxed clock model calibrated with a mitochondrial substitution rate, the age of the most recent common ancestor of the Korean—Japanese lineage is estimated within the Miocene epoch. This provides evidence for a diversification event closely tied to the geological events separating the Japanese archipelago from the Korean peninsula.

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<I>Galloisiana olgae</I> sp. nov. (Grylloblattodea: Grylloblattidae) and the Paleobiology of a Relict Order of Insects

Cited by 28 publications

References 13 publications

Many hexapod groups originated earlier and withstood extinction events better than previously realized: inferences from supertrees

Many hexapod groups originated earlier and withstood extinction events better than previously realized: inferences from supertrees

Current status of the systematics and evolutionary biology of Grylloblattidae (Grylloblattodea)

Phylogenetic Relationships and Relictualism of Rock-Crawlers (Grylloblattodea: Grylloblattidae) in Cave and Mountain Habitats of Korea

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