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Wightia declivirostris

Wightia is a genus of tapejarid pterosaur recovered from the Lower Cretaceous (Barremian) aged Wessex Formation of the Isle of Wight of England, from which it gets its name.[1] The only species within this genus is W. declivirostris.

Wightia
Temporal range: Early Cretaceous, Barremian
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Order: Pterosauria
Suborder: Pterodactyloidea
Family: Tapejaridae
Subfamily: Sinopterinae
Genus: Wightia
Martill et al., 2020
Species:
W. declivirostris
Binomial name
Wightia declivirostris
Martill et al., 2020

Discovery and naming edit

Amateur paleontologist John Winch discovered a pterosaur snout at the east coast of Wight, near the cliff of Yaverland Point at Sandown, in a fossil plant debris layer. In 2020, the type species Wightia declivirostris was named and described by David Michael Martill, Mick Green, Roy Smith, Megan Jacobs and John Winch. The generic name Wightia comes from the Isle of Wight in England where the fossil was found. The specific name means "slanting beak" in Latin, from declivis, "inclining downwards", and rostrum, "snout", referring to the snout kink typical of tapejarids.

The holotype, IWCSM. 2020. 401, was found in a layer of the Wessex Formation dating from the Barremian. It consists of partial paired praemaxillae, lacking the snout tip and broken off at the rear before the front edge of the fenestra nasoantorbitalis. The fossil is lightly eroded, transversely compressed and deformed. It is part of the collection of the Museum of Isle of Wight Geology (Dinosaur Isle Visitor Centre).

Description edit

The species is solely known from the premaxilla. Martill e.a. indicated some distinguishing traits. The occlusal surface (palate) of the snout is pierced by only a limited number of slit-like foramina combined with a single row of foramina parallel to and close to the jaw edge and positioned far apart, at about one opening per centimetre. The snout is appending under an angle of 12°.

Phylogeny edit

The morphology of the occlusal margin suggests closer affinities of Whightia with Sinopterus than with the South American tapejarids. The describers place the two, including Eopteranodon and Huaxiapterus, in a newly named subfamily of tapejarids called Sinopterinae.

Palaeoecology edit

Wightia inhabited the area presented by southern England's Wessex Formation, at the time a floodplain. The formation contains an abundance of insects like Dungeyella. Herbivores ranged from small mammals like Eobaatar, Loxaulax and Yaverlestes to ornithopods, themselves ranging from the small Hypsilophodon to large iguanodonts like Mantellisaurus. The largest predators of the area and time were the spinosaurid Baryonyx and the allosauroid Neovenator, as well as the basal tyrannosaur Eotyrannus.

Wightia was most likely an omnivore like other tapejarids.

References edit

  1. ^ Martill, David M.; Green, Mick; Smith, Roy; Jacobs, Megan; Winch, John (April 2020). "First tapejarid pterosaur from the Wessex Formation (Wealden Group: Lower Cretaceous, Barremian) of the United Kingdom". Cretaceous Research. 113: 104487. doi:10.1016/j.cretres.2020.104487.

wightia, declivirostris, plant, wightia, plant, wightia, genus, tapejarid, pterosaur, recovered, from, lower, cretaceous, barremian, aged, wessex, formation, isle, wight, england, from, which, gets, name, only, species, within, this, genus, declivirostris, wig. For the plant see Wightia plant Wightia is a genus of tapejarid pterosaur recovered from the Lower Cretaceous Barremian aged Wessex Formation of the Isle of Wight of England from which it gets its name 1 The only species within this genus is W declivirostris WightiaTemporal range Early Cretaceous Barremian PreꞒ Ꞓ O S D C P T J K Pg N Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataOrder PterosauriaSuborder PterodactyloideaFamily TapejaridaeSubfamily SinopterinaeGenus WightiaMartill et al 2020Species W declivirostrisBinomial name Wightia declivirostrisMartill et al 2020 Contents 1 Discovery and naming 2 Description 3 Phylogeny 4 Palaeoecology 5 ReferencesDiscovery and naming editAmateur paleontologist John Winch discovered a pterosaur snout at the east coast of Wight near the cliff of Yaverland Point at Sandown in a fossil plant debris layer In 2020 the type species Wightia declivirostris was named and described by David Michael Martill Mick Green Roy Smith Megan Jacobs and John Winch The generic name Wightia comes from the Isle of Wight in England where the fossil was found The specific name means slanting beak in Latin from declivis inclining downwards and rostrum snout referring to the snout kink typical of tapejarids The holotype IWCSM 2020 401 was found in a layer of the Wessex Formation dating from the Barremian It consists of partial paired praemaxillae lacking the snout tip and broken off at the rear before the front edge of the fenestra nasoantorbitalis The fossil is lightly eroded transversely compressed and deformed It is part of the collection of the Museum of Isle of Wight Geology Dinosaur Isle Visitor Centre Description editThe species is solely known from the premaxilla Martill e a indicated some distinguishing traits The occlusal surface palate of the snout is pierced by only a limited number of slit like foramina combined with a single row of foramina parallel to and close to the jaw edge and positioned far apart at about one opening per centimetre The snout is appending under an angle of 12 Phylogeny editThe morphology of the occlusal margin suggests closer affinities of Whightia with Sinopterus than with the South American tapejarids The describers place the two including Eopteranodon and Huaxiapterus in a newly named subfamily of tapejarids called Sinopterinae Palaeoecology editWightia inhabited the area presented by southern England s Wessex Formation at the time a floodplain The formation contains an abundance of insects like Dungeyella Herbivores ranged from small mammals like Eobaatar Loxaulax and Yaverlestes to ornithopods themselves ranging from the small Hypsilophodon to large iguanodonts like Mantellisaurus The largest predators of the area and time were the spinosaurid Baryonyx and the allosauroid Neovenator as well as the basal tyrannosaur Eotyrannus Wightia was most likely an omnivore like other tapejarids References edit Martill David M Green Mick Smith Roy Jacobs Megan Winch John April 2020 First tapejarid pterosaur from the Wessex Formation Wealden Group Lower Cretaceous Barremian of the United Kingdom Cretaceous Research 113 104487 doi 10 1016 j cretres 2020 104487 Portals nbsp Paleontology nbsp Cretaceous nbsp United Kingdom Retrieved from https en wikipedia org w index php title Wightia declivirostris amp oldid 1062327667, wikipedia, wiki, book, books, library,

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