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Risultati della ricerca
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Journal article
Psittacopedids and zygodactylids: The diverse and species-rich psittacopasserine birds from the early Eocene London Clay of Walton-on-the-Naze (Essex, UK)
The Daniels collection of fossil birds from the early Eocene London Clay of Walton-on-the-Naze (Essex, UK) contains multiple specimens of the Psittacopedidae and Zygodactylidae, which are here for the first time studied in detail. The Psittacopedidae include Parapsittacopes bergdahli, Psittacomimus eos, gen. et sp. nov., ?Psittacopes occidentalis, sp. nov., and...Mayr, Gerald ; Kitchener, Andrew C
Psittacopasseres, evolution, fossil birds, Aves, and systematics
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Journal article
First recorded stranding of a short-finned pilot whale, Globicephala macrorhynchus, in Britain
A male pilot whale, Globicephala sp., was reported as a live stranding on 1st March 2012 at Hazelbeach, near Neyland, Pembrokeshire. It was euthanased and its skull was recovered during an onsite necropsy. Examination of the skull and contemporary photographs of the stranded animal confirm that this is the first...Kitchener, Andrew C ; Hantke, Georg ; Penrose, R S ; Perkins, M W ; Deaville, R
Globicephala melas, Delphinidae, skull, and Globicephala macrorhynchus
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Journal article
Early Eocene fossil illuminates the ancestral (diurnal) ecomorphology of owls and documents a mosaic evolution of the strigiform body plan
We describe a partial skeleton of a fossil owl (Strigiformes) from the early Eocene London Clay of Walton-on-the-Naze (Essex, UK). The holotype of Ypresiglaux michaeldanielsi, gen. et sp. nov. is one of the most complete specimens of a Palaeogene owl and elucidates the poorly known ecomorphology of stem group Strigiformes....Mayr, Gerald ; Kitchener, Andrew C
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Journal article
Oldest fossil loon documents a pronounced ecomorphological shift in the evolution of gaviiform birds
We describe a stem group representative of Gaviiformes (loons or divers) from the early Eocene London Clay of Walton-on-the-Naze (Essex, UK). The holotype of Nasidytes ypresianus gen. et sp. nov. is a partial skeleton including the mandible and all major limb bones. The new species is the oldest unambiguously identified...Mayr, Gerald ; Kitchener, Andrew C
Nasidytes ypresianus, Walton-on-the-Naze, Aves, fossil birds, and London Clay
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Journal article
New fossils from the London Clay show that the Eocene Masillaraptoridae are stem group representatives of falcons (Aves, Falconiformes)
The Eocene taxon Masillaraptoridae includes long-legged, raptorial birds, the phylogenetic affinities of which are poorly resolved. Here, fossils from the London Clay of Walton-on-the-Naze (Essex, U.K.) are described, which corroborate the hypothesis that masillaraptorids are stem group representatives of the Falconiformes (falcons). Two partial skeletons are assigned to a new...Mayr, Gerald ; Kitchener, Andrew C
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Journal article
Genetic examination of historical North Atlantic right whale (Eubalaena glacialis) bone specimens from the eastern North Atlantic: Insights into species history, transoceanic population structure, and genetic diversity
Species monitoring and conservation is increasingly challenging under current climate change scenarios. For the North Atlantic right whale (Eubalaena glacialis) this challenge is heightened by the added effects of complicated and uncertain past species demography. Right whales once had a much wider distribution across the North Atlantic Ocean, although the...Frasier, Brenna A ; Springate, Leah ; Frasier, Timothy R ; Brewington, Seth ; Carruthers, Martin …
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Journal article
Cranial volume and palate length of cats, Felis spp., under domestication, hybridization and in wild populations
Reduced brain size, compared with wild individuals, is argued to be a key characteristic of domesticated mammal species, and often cited as a key component of a putative ‘domestication syndrome’. However, brain size comparisons are often based on old, inaccessible literature and in some cases drew comparisons between domestic animals...Lesch, Raffaela ; Kitchener, Andrew C ; Hantke, Georg ; Kotrschal, Kurt ; Fitch, W Tecumseh
skull, conservation, brain size, wildlife, hybridization, and cranial capacity
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Journal article
Dental Anomaly Causing Severe Maxillary Lesions in a Male Sowerby’s Beaked Whale (Mesoplodon bidens Sowerby, 1804)
Sowerby’s beaked whale (Mesoplodon bidens) is a poorly known cetacean species, and much of our current information comes from stranded animals. Herein, we describe a dental anomaly in an adult male stranded in 2019 in the Moray Firth, Scotland. The mandibular teeth (tusks) had erupted so their tips converged towards...Plint, Tessa ; Hantke, Georg ; Schwarz, Tobias ; Kitchener, Andrew C
beaked whale, dental anomaly, maxillary lesions, Mesoplodon bidens, and pathology
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Journal article
First record of True’s beaked whale, Mesoplodon mirus, in Britain
A female beaked whale, Family Ziphiidae, was reported as stranded on 29th January 2020 at Kearvaig Bay, Sutherland, Scotland. Examination of its skull confirms that this is the first recorded stranding of True’s beaked whale, Mesoplodon mirus, in Britain.Kitchener, Andrew C ; Georg , Hantke ; Herman, Jeremy S ; ten Doeschate, Mariel ; Brownlow, Andrew C
skull, stranding, Ziphiidae, Mesoplodon mirusy, and pathology
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Journal article
Skull morphology diverges between urban and rural populations of red foxes mirroring patterns of domestication and macroevolution
Human activity is drastically altering the habitat use of natural populations. This has been documented as a driver of phenotypic divergence in a number of wild animal populations. Here, we show that urban and rural populations of red foxes (Vulpes vulpes) from London and surrounding boroughs are divergent in skull...Parsons, K J ; Rigg, Anders ; Conith, A J ; Kitchener, Andrew C ; Harris, S …
Canidae , domestication, developmental bias , contemporary evolution, morphometrics, and urban ecology