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Journal article
An unusual small-bodied crocodyliform from the Middle Jurassic of Scotland, UK, and potential evidence for an early diversification of advanced neosuchians
The Middle Jurassic is a poorly sampled time interval for non-pelagic neosuchian crocodyliforms, which obscures our understanding of the origin and early evolution of major clades. Here we report a lower jaw from the Middle Jurassic (Bathonian) Duntulm Formation of the Isle of Skye, Scotland, UK, which consists of an...Yi, Hongyu ; Tennant, Johnathan P ; Young, Mark T ; Challands, Thomas James ; Foffa, Davide …
Duntulm Formation, Neosuchia, Crocodyliformes, and Isle of Skye
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Journal article
Tooth serration morphologies in the genus Machimosaurus (Crocodylomorpha, Thalattosuchia) from the Late Jurassic of Europe
Machimosaurus was a large-bodied durophagous/chelonivorous genus of teleosaurid crocodylomorph that lived in shallow marine and brackish ecosystems during the Late Jurassic. Among teleosaurids, Machimosaurus and its sister taxon ‘Steneosaurus’ obtusidens are characterized by having foreshortened rostra, proportionally enlarged supratemporal fenestrae and blunt teeth with numerous apicobasal ridges and a shorter...Young, Mark T ; Steel, Lorna ; Brusatte, Stephen L ; Foffa, Davide ; Lepage, Yves
Machimosaurus, Teleosauridae, ‘pseudo-denticles’, dental morphology, Europe, and enamel ridges
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Journal article
Revision of the Late Jurassic teleosaurid genus Machimosaurus (Crocodylomorpha, Thalattosuchia)
Machimosaurus was a large-bodied genus of teleosaurid crocodylomorph, considered to have been durophagous/chelonivorous, and which frequented coastal marine/estuarine ecosystems during the Late Jurassic. Here, we revise the genus based on previously described specimens and revise the species within this genus. We conclude that there were three European Machimosaurus species and...Young, Mark T ; Hua, Stéphane ; Steel, Lorna ; Foffa, Davide ; Brusatte, Stephen L …
Machimosaurus, Teleosauridae, Tithonian, Africa, Kimmeridgian, and Europe
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Journal article
A review of Necrotauliids from the Triassic/Jurassic of England (Trichoptera: Necrotauliidae)
Species previously attributed to Necrotauliidae are revised from the Late Triassic and Early Jurassic of England based on examination of type specimens and non-type material. The necrotauliids have been considered as a basal family of caddisflies (Trichoptera) or as a paraphyletic assemblage of stem-amphiesmenopterans. Herein a new genus, Austaulius, is...Kelly, Richard S ; Ross, Andrew ; Coram, Robert A
palaeoentomology, taxonomy/systematics, Polyneoptera, palaeobiogeography, and Archidermaptera
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Journal article
A new metriorhynchid crocodylomorph from the Oxford Clay Formation (Middle Jurassic) of England, with implications for the origin and diversification of Geosaurini
Metriorhynchids are an extinct group of Jurassic–Cretaceous crocodylomorphs secondarily adapted to a marine lifestyle. A new metriorhynchid crocodylomorph from the Oxford Clay Formation (Callovian, Middle Jurassic) of England is described. The specimen is a large, fragmentary skull and associated single ramus of a lower jaw uniquely preserved in a septarian...Foffa, Davide ; Young, Mark T ; Brusatte, Stephen L ; Graham, Mark R ; Steel, L
Geosaurus, Jurassic, macrophagy, Ieldraan, Melksham monster, and Geosaurini
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Journal article
Squeezing river catchments through tectonics: shortening and erosion across the Indus Valley, NW Himalaya
Tectonic displacement of drainage divides and the consequent deformation of river networks during crustal shortening have been proposed for a number of mountain ranges, but never tested. In order to preserve crustal strain in surface topography, surface displacements across thrust faults must be retained without being recovered by consequent erosion....Sinclair, H D ; Mudd, S M ; Dingle, E ; Hobley, D E J ; Robinson, R …
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Journal article
Sauropod dinosaur trackways in a Middle Jurassic lagoon on the Isle of Skye, Scotland
The Middle Jurassic was a dynamic interval in dinosaur evolution, but the dinosaur fossil record from this time is extremely poor throughout the world. The Isle of Skye (Scotland) preserves marginal marine and terrestrial deposits of Middle Jurassic age, which have yielded sparse bones, teeth, footprints and small segments of...Brusatte, Stephen L ; Challands, Thomas James ; Ross, Dugald A ; Young, Mark T ; Wilkinson, Mark
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Journal article
Theropod dinosaurs from the Middle Jurassic (Bajocian-Bathonian) of Skye, Scotland
The Isle of Skye, Scotland, has yielded a diverse Middle Jurassic terrestrial vertebrate fauna, but little is known about the predatory dinosaurs (theropods) occupying the top and secondary carnivore roles in these ecosystems, as their fossils have been limited to rare footprints of small- to mid-sized taxa. We describe two...Brusatte, Stephen L ; Clark, Neil D L
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Journal article
Rensching cats and dogs: feeding ecology and fecundity trends explain variation in the allometry of sexual size dimorphism
The tendency for sexual size dimorphism (SSD) to increase with body mass in taxa where males are larger, and to decrease when females are larger, is known as Rensch's rule. In mammals, where the trend occurs, it is believed to be the result of a competitive advantage for larger males,...Johnson, P J ; Noonan, M J ; Kitchener, Andrew C ; Harrington, L A ; Newman, C …
dimorphism, Canidae, allometry, diet, resource dispersion, and Felidae