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Journal article
Dinocephalosaurus orientalis Li, 2003: a remarkable marine archosauromorph from the Middle Triassic of southwestern China
The non-archosauriform archosauromorph Dinocephalosaurus orientalis was first described from the Upper Member of the Guanling Formation (late Anisian, Middle Triassic) of Guizhou Province by Li in 2003 on the basis of a complete articulated skull and the first three cervical vertebrae exposed in dorsal to right lateral view. Since then,...Spiekman, Stephan N F ; Wang, Wei ; Zhao , Lijun ; Rieppel , Olivier ; Fraser, Nicholas C …
non-archosauriform , marine reptile , southern China, and late Anisian
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Journal article
Caridoid crustaceans from the Ballagan Formation (Tournaisian, Lower Carboniferous) of Willie's Hole, Chirnside, Scottish Borders, UK
The descriptions of two co-occurring cardioid crustaceans from the Ballagan Formation (Tournaisian, Lower Carboniferous) of Chirnside, Scottish Borders, help to resolve the taxonomy of the genus Tealliocaris. Tealliocaris robusta Peach, 1908 is assigned to Schramocaris to form S. robusta (Peach, 1908) comb. nov. on the basis of morphological characters such...Clark, Neil D L ; Ross, Andrew J
Scotland , Tealliocarididae , Crustacea , Mississippian , Eumalacostraca , and Tealliocaris
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Journal article
Range-wide whole-genome resequencing of the brown bear reveals drivers of intraspecies divergence
Population-genomic studies can shed new light on the effect of past demographic processes on contemporary population structure. We reassessed phylogeographical patterns of a classic model species of postglacial recolonisation, the brown bear ( ), using a range-wide resequencing dataset of 128 nuclear genomes. In sharp contrast to the erratic geographical...de Jong, Menno J ; Niamir, Aidin ; Wolf, Magnus ; Kitchener, Andrew C ; Lecomte, Nicolas …
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Journal article
Historical Textile Dye Analysis Using DESI-MS
Desorption electrospray ionization mass spectrometry (DESI-MS) is an ambient mass spectrometry technique that shows great potential for the analysis of fragile heritage objects in situ. This article focuses on the application of a recently built DESI source to characterize natural dyestuffs in historical textiles and a presentation of initial imaging...Sandström, Edith ; Vettorazzo, Chiara ; Mackay, C Logan ; Troalen, Lore G ; Hulme, Alison N
mass spectrometry, mass spectrometry imaging, natural dyes, non-invasive analysis, and textile
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Journal article
A new fossil from the London Clay documents the convergent origin of a “mousebird-like” tarsometatarsus in an early Eocene near-passerine bird
We describe a partial skeleton of a small bird from the lower Eocene London Clay of Walton-on-the-Naze (Essex, UK), which shows close affinities to two phylogenetically controversial early Paleogene taxa, Morsoravis sedilis (lower Eocene of Denmark) and Pumiliornis tessellatus (lower/middle Eocene of Germany). Our phylogenetic analysis supports a clade including...Mayr, Gerald ; Kitchener, Andrew C
Aves, Walton-on-the-Naze, Sororavis solitarius, Eocene, UK, and evolution
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Journal article
New postcranial remains from the Lealt Shale Formation of the Isle of Skye, Scotland, showcase hidden pterosaur diversity in the Middle Jurassic
The Early to Middle Jurassic transition was significant in pterosaur evolution, during which these volant reptiles exploded in diversity alongside dinosaurs and other animals. It has long been thought, however, that pterosaurs did not develop large wingspans until after the Jurassic, a notion challenged by the recent discovery of in...Jagielska, Natalia ; Challands, Thomas J ; O'Sullivan, Michael ; Ross, Dugald A ; Fraser, Nicholas C …
Palaeontology and Geobiology, Palaeoenvironments, and Palaeogeography
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Journal article
Narrow-beaked trogons from the early Eocene London Clay of Walton-on-the-Naze (Essex, UK)
We describe multiple partial skeletons of a new trogon species from the early Eocene London Clay of Walton-on-the-Naze (Essex, UK), which are among the oldest fossils of the Trogoniformes. , gen. et sp. nov. has a much narrower and more gracile beak than extant trogons, which denotes different ecological attributes...Mayr, Gerald ; De Pietri, Vanesa L ; Kitchener, Andrew C
Eotrogon stenorhynchus, gen. et sp. nov. , Phylogeny, Fossil birds , Paratrogon gallicus , Aves , and Evolution
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Journal article
Molecular fingerprints resolve affinities of Rhynie chert organic fossils
The affinities of extinct organisms are often difficult to resolve using morphological data alone. Chemical analysis of carbonaceous specimens can complement traditional approaches, but the search for taxon-specific signals in ancient, thermally altered organic matter is challenging and controversial, partly because suitable positive controls are lacking. Here, we show that...Loron , C C ; Rodriguez Dzul, E ; Orr, P J ; Gromov, A V ; Fraser, Nicholas C …
Eukaryote , Biogeochemistry, Palaeontology , and Prokaryote
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Journal article
Pests or prey? Micromammal species within an ancient anthropic environment at the Norse settlement site of Tuquoy (Westray, Orkney)
Micromammals, like rodents and shrews, adapt rapidly to take advantage of new food sources, habitats and ecological niches, frequently thriving in anthropogenic environments. Their remains, often retrieved during archaeological investigations, can be a valuable source of information about the past environmental conditions as well as interspecies interactions and human activity....Romaniuk, Andrzej A ; Troalen, Lore G ; Bendrey, Robin ; Herman, Jeremy S ; Owen, Olwyn …
commensalism, introductions, Orkney, micromammal, archaeology, and predation
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Journal article
Development and Application of Desorption Electrospray Ionization Mass Spectrometry for Historical Dye Analysis
A desorption electrospray ionization (DESI) source was built and attached to a Bruker 7T SolariX FT-ICR-MS for the in situ analysis of 14 early synthetic dyestuffs. Optimization using silk and wool cloths dyed with rhodamine B concluded that when using a commercial electrospray emitter (part number: 0601815, Bruker Daltonik), a...Sandström, Edith ; Vettorazzo, Chiara ; Mackay, C Logan ; Troalen, Lore G ; Hulme, Alison N
Solvents, Dyes and pigments, Biomimetic materials, Ions, and Fibers
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