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Articles by Kelley PH
Malformed trilobites from the Cambrian, Ordovician, and Silurian of Australia
Malformed trilobites from the Cambrian, Ordovician, and Silurian of Australia 1Division of Paleontology (Invertebrates), American Museum of Natural History, New York, NY 2Palaeoscience Research Centre, School of Environmental and Rural Science, University of New England, Armidale, New South Wales, Australia 3Palaeontology Department, Australian Museum Research Institute, Sydney, New South Wales, Australia 4Department of Biological Sciences, Macquarie University, Sydney, New South Wales,...
Bite and tooth marks on sauropod dinosaurs from the Morrison Formation
Bite and tooth marks on sauropod dinosaurs from the Morrison Formation 1Università degli Studi di Modena e Reggio Emilia, Moderna, Italy 2American Museum of Natural History, New York, NY, USA 3Universität Hamburg, Hamburg, Germany 4GeoBioTec, Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal 5Unidad Ejecutora Lillo, CONICET-Fundación Miguel Lillo, Tucumán, Argentina 6Western University of Health Sciences, Pomona, CA, USA 7School of Biological and Behavioural...
Five new malformed trilobites from Cambrian and Ordovician deposits from the Natural History Museum
Five new malformed trilobites from Cambrian and Ordovician deposits from the Natural History Museum 1American Museum of Natural History, New York City, NY, United States of America 2School of Environmental and Rural Science, University of New England, Armidale, New South Wales, Australia 3Palaeontology Department, Australian Museum Research Institute, Sydney, New South Wales, Australia 4Department of Biological Sciences, Macquarie University, Sydney, Australia DOI 10.7717/peerj.16326 Academic...
The quality of the fossil record across higher taxa: compositional fidelity of phyla and classes in benthic marine associations
Compositional and diversity fidelity Prior to all analyses small samples with fewer than 50 individuals were excluded (36 out of 52 sites were retained in the final analysis). As samples from DAs typically contain more individuals, sample standardization was performed using rarefaction, and samples were rarefied to the smallest of the two assemblages in any given live-dead pair.
Examining abnormal Silurian trilobites from the Llandovery of Australia
Geological context The material reported herein comes from “Cotton Hill Quarry”, at approximately 33°18′44.0″S 147°56′00.9″E, on the western limb of the Forbes Anticline within the Cotton Formation (Fig. 1). The geological context of this site was discussed in detail by Edgecombe & Sherwin (2001, p 87–90). Hence, only a summary is provided here. Generally, the formation outcrops poorly, appearing only as low rubbly hills in the Forbes region.
Exploring abnormal Cambrian-aged trilobites in the Smithsonian collection
Results Elliptocephala asaphoides Emmons, 1844, USNM PAL 18350a, Browns Pond Formation (=Schodack Formation) (Cambrian Stage 2, Series 4, age taken from Skovsted & Peel, 2007), eastern New York, USA. Figures 1A, 1B. USNM PAL 18350a is preserved as an external mould with a ‘U’-shaped abnormality that truncates pleurae by 8 mm. Abnormality begins at thoracic segment 6, extends into thoracic segment 8, and is 15 mm long.
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