Paul G Davis

Paul G Davis

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9
Publications
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311
Citations
Citations since 2017
0 Research Items
64 Citations
2017201820192020202120222023051015
2017201820192020202120222023051015
2017201820192020202120222023051015
2017201820192020202120222023051015

Publications

Publications (9)
Article
This paper describes a new ichthyosaur specimen from the Stonebarrow Marls Member (Charmouth Mudstone Formation) of Charmouth, Dorset. It is substantially complete and various characters of the skull (snout ratios and basioccipital morphology) and appendicular skeleton (the number of digits on the hind paddle, which can be used to infer the number...
Article
Full-text available
An almost symmetrical, isolated feather from the Crato Formation is associated with numerous spherical, hollow structures approximately 75 microns diameter which are interpreted as the eggs of an avian ectoparasite, probably a mite. The feather shape resembles the caudal feathers of modern birds and Archaeopteryx, but it appears to have only simple...
Article
The high specificity of bird ectoparasites has frequently been interpreted to mean that they have a long evolutionary history1. Either they were present as parasites before the main diversification of birds in the Cretaceous period2, or they evolved independently into avian parasites on several occasions. The recent discovery of dinosaurs with feat...
Article
Taphonomic experiments on bird carcasses were carried out at two field sites in southern Florida, a brackish swamp and a marine embayment. Observations were made on carcasses protected by metal cages, and unprotected carcasses. Scavengers were the primary agent of degradation in the case of unprotected carcasses. The sequence of morphological decay...
Article
This study presents a synthesis of the evidence for modern archaeological, and palaeontological bioerosion of vertebrate tissue. It describes the first evidence for the bioerosion of modern, archaeological and fossil bird bones. A new form of bone bioerosion, known as Hackett tunnels, is defined. The bioerosion of vertebrate tissue by cyanobacteria...
Article
Scanning electron microscopy of feathers has revealed evidence that a bacterial glycocalyx (a network of exocellular polysaccharide fibers) played a role in promoting their fossilization in some cases. This mode of preservation has not been reported in other soft tissues. The majority of fossil feathers are preserved as carbonized traces. More rare...
Article
Full-text available
The taphonomy of birds can be investigated with actualistic studies complemented by reviewing Konversat Lagerstätten such as Messel, Green River and Solnhofen. Two field sites were chosen in southern Florida: 1, a freshwater (16–23 ppt salinity) environment in which biogenic carbonate muds were being deposited and 2, a marine (30–34 ppt salinity) e...

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