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- Title
Closing a biogeographic gap: a new pettalid genus from South Australia (Arachnida : Opiliones : Cyphophthalmi : Pettalidae) with a UCE-based phylogeny of Cyphophthalmi.
- Authors
Giribet, Gonzalo; Shaw, Matthew; Lord, Arianna; Derkarabetian, Shahan
- Abstract
Pettalidae is a family of mite harvestmen that inhabits the former circum-Antarctic Gondwanan terranes, including southern South America, South Africa, Madagascar, Sri Lanka, Australia and New Zealand. Australia is home to two pettalid genera, Austropurcellia , in northern New South Wales and Queensland, and Karripurcellia , in Western Australia, until now showing a large distributional gap between these two parts of the Australian continent. Here we report specimens of a new pettalid from South Australia, Archaeopurcellia eureka , gen. et sp. nov., closing this distributional gap of Australian pettalids. Phylogenetic analyses using traditional Sanger markers as well as ultra-conserved elements (UCEs) reveal that the new genus is related to the Chilean Chileogovea , instead of any of the other East Gondwanan genera. This relationship of an Australian species to a South American clade can be explained by the Antarctic land bridge between these two terranes, a connection that was maintained with Australia until 45 Ma. The UCE dataset also shows the promise of using museum specimens to resolve relationships within Pettalidae and Cyphophthalmi. ZooBank: urn:lsid:zoobank.org:pub:9B57A054-30D8-4412-99A2-6191CBD3BD7E We explored the phylogeny of the family Pettalidae, distributed in the terranes of former Gondwana, using both Sanger markers and UCEs. A new pettalid from South Australia closing a large distributional gap in pettalids is described as Archaeopurcellia eureka , gen. et sp. nov., related to West Gondwanan genera. This relationship of an Australian species to a South American clade can be explained by the Antarctic land bridge between these two terranes, a connection that was maintained until 45 Ma.
- Subjects
SOUTH Australia; OPILIONES; ARACHNIDA; PHYLOGENY; MITES
- Publication
Invertebrate Systematics, 2022, Vol 36, Issue 11, p1002
- ISSN
1445-5226
- Publication type
Article
- DOI
10.1071/IS22043