scholarly journals IV.—On the Occurrence of Boring Mollusca in the Oolitic Rocks

1875 ◽  
Vol 2 (6) ◽  
pp. 267-272 ◽  
Author(s):  
J. Morris

The occurrence of perforations due to Lithophagous mollusca has been frequently observed in the Oolitic rocks, viz. in the Inferior and Great Oolite, Cornbrash, Coral-rag, and Portland beds. During a recent visit, with some of the students of the Agricultural College, Cirencester, to a quarry near there, further evidence of a similar fact was obtained. The quarry is situated near the canal on the farm land of Mr. Sargeant, and has been long worked for road stone and building stone, and, according to the Geological Survey, belongs to the Forest Marble division of the Great Oolite series, and exhibits the structure known as “false-bedding or oblique lamination,” and occasionally the flagstones in this and other neighbouring quarries show ripple-marks and tracks of marine animals.

1944 ◽  
Vol 4 (13) ◽  
pp. 577-590 ◽  

With the death on 15 September 1943, at Upton near Didcot, Berkshire, of Dr Henry Guy Ellcock Pilgrim, vertebrate palaeontology has lost one of its most distinguished exponents, a man who was also the world’s greatest authority on the rich Siwalik fauna of India. Pilgrim, who comes of an old Barbadian family, was the son of Henry Ellcock Pilgrim and Isabel Pilgrim (nee Wilson), and was born at Stepney, Barbados, on 24 December 1875. He was educated at Harrison College, Barbados, and University College, London, with a short period at the Wye Agricultural College, Kent. He was at University College from 1894—1897 and 1900-1902, and at Wye in 1902. He took the degrees of B.Sc. in 1901 and of D.Sc. in 1908, both of London University. During his first period at University College Pilgrim studied chemistry: during his second period he studied geology, first under Professor Bonney and later under Professor Garwood. He was appointed to the Geological Survey of India in 1902, and sailed for Calcutta at the end of September on the P. & O. steamer Cormandel , with the present writer and the late Dr James Malcolm Maclaren, also new recruits to the Survey. We arrived in Calcutta on 28 October, whilst C. L. Griesbach was still Director. During his service Pilgrim did field work in Burma, the Persian Gulf, including Persia and Arabia, Baluchistan, the Punjab, the Simla Hills, and Bhutan. When at headquarters he was Curator of the Geological Museum in 1909, and filled the post of Palaeontologist on many occasions from 1905 onwards. He was promoted Superintendent in 1920 and retired from the Geological Survey in 1930


1984 ◽  
Vol 3 (2) ◽  
pp. 103-111 ◽  
Author(s):  
Leroy Page

Benjamin Franklin Mudge (1817-79), originally from Massachusetts, was appointed State Geologist and Director of the First Geological Survey of Kansas in 1864. After failing to be reappointed in 1865 he became Professor of Natural Science at Kansas State Agricultural College, Manhattan, whose president, Joseph Denison, was an old friend and fellow Methodist. Mudge taught courses in all areas of science and spent his summers geologizing in western Kansas. An avid collector, he sent fossil specimens to Edward Cope, O. C. Marsh, and others. In the summer of 1872 he discovered a Cretaceous bird, Ichthyornis dispar, described by Marsh at Yale as the first fossil bird known to have teeth. In 1873 the KSAC regents replaced Denison by John Anderson, who dismissed Mudge and two others in February 1874 after they complained to members of the legislature about misuse of college funds and tried unsuccessfully to defeat legislative confirmation of some of the regents. Mudge then was employed by Marsh to collect fossil vertebrates (1874-77). Assisted by Samuel Williston and other former students, he sent to Marsh a large number of specimens of marine reptiles, pterodactyls, and birds from the Cretaceous beds of western Kansas. In 1877 he was sent to Colorado, where he supervised the quarrying of dinosaur bones at Cañon City. Strongly religious and a staunch opponent of slavery and alcohol, Mudge was regarded highly as a teacher and collector. He published in 1875 a description of the geology of Kansas which contained the first geological map of the State. He also was cofounder and first president of the Kansas Academy of Science.


2020 ◽  
Vol 642 ◽  
pp. 163-177 ◽  
Author(s):  
Y Niella ◽  
AF Smoothey ◽  
V Peddemors ◽  
R Harcourt

In the face of accelerating climate change, conservation strategies will need to consider how marine animals deal with forecast environmental change as well as ongoing threats. We used 10 yr (2009-2018) of data from commercial fisheries and a bather protection program along the coast of New South Wales (NSW), southeastern Australia, to investigate (1) spatial and temporal patterns of occurrence in bull sharks and (2) environmental factors affecting bull shark occurrence along the coast of NSW. Predicted future distribution for this species was modelled for the forecast strengthening East Australian Current. Bull sharks were mostly harvested in small to larger estuaries, with average depth and rainfall responsible for contrasting patterns for each of the fisheries. There was an increase in the occurrence of bull sharks over the last decade, particularly among coastal setline fisheries, associated with seasonal availability of thermal gradients >22°C and both westward and southward coastal currents stronger than 0.15 and 0.60 m s-1, respectively, during the austral summer. Our model predicts a 3 mo increase in the availability of favourable water temperatures along the entire coast of NSW for bull sharks by 2030. This coastline provides a uniquely favourable topography for range expansion in the face of a southerly shift of warmer waters, and habitat is unlikely to be a limiting factor for bull sharks in the future. Such a southerly shift in distribution has implications for the management of bull sharks both in commercial fisheries and for mitigation of shark-human interactions.


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