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005			20190617151702.0
008			171213r20182018dcua b f001 0 eng
010			_a 2017059091
040			_aDGPO/DLC _beng _erda _cDGPO _dDLC _dPUCPR
042			_apcc
043			_an-us-md
086	0		_aSI 1.30:100
245	0	4	_aThe geology and vertebrate paleontology of Calvert Cliffs, Maryland / _cedited by Stephen J. Godfrey.
264		1	_aWashington, D.C. : _bSmithsonian Institution Scholarly Press, _c2018.
300			_a274 pages : _billustrations (some color), maps ; _c28 cm.
336			_btxt
337			_bn _2rdamedia
338			_bnc _2rdacarrier
490	1		_aSmithsonian contributions to paleobiology, _x0081-0266 ; _vnumber 100
504			_aIncludes bibliographical references and index.
520			_aThe last comprehensive review of the fossil vertebrates from the Miocene of Calvert Cliffs was published more than 100 years ago. This volume is a collection of papers that updates some of the geological features of Calvert Cliffs and provides reviews of the fossil biota that includes representatives from the following taxonomic groups: chondrichthyans (chimaeras, shark, skates, and rays), actinopterygians (ray-finned fishes), crocodilians (crocodiles), pinnipeds (seals), and sirenians (sea cows). Peter Vogt, Ralph R. Eshelman, and Stephen J. Godfrey document how the 20-40 m (65-130 feet) high Calvert Cliffs along the Western Shore of Chesapeake Bay continue to yield insights into 18-8 Ma (middle Miocene) geology, marine and terrestrial vertebrate fauna, and origin and evolution of Chesapeake Bay and Calvert Cliffs up to the present. These exposures rank high among the best-known fossiliferous deposits of any age. Bretton W. Kent describes the cartilaginous fish (the chondrichthyan) fauna consisting of 53 species; three chimaeras (ratfishes), 38 sharks, and 12 skates and rays; a fauna rich in large macrophagous sharks and large neritic rays. Giorgio Carnevale and Stephen J. Godfrey present an account of the 38 actinopterygian taxa known from osteological remains and a diverse otolith assemblage of at least 55 taxa. These actinopterygians show an affinity for well-oxygenated muddy and sandy substrates dominated by shallow water species characteristic of the inner shelf, and secondarily by epipelagic taxa. Robert E. Weems details the crocodilians referable to the tomistomine Thecachampsa. The closest living relative is Tomistoma schlegelii, the false-gharial of Southeast Asia. Two species are present: Thecachampsa sericodon and T. antiquus--Provided by publisher.
700	1		_aGodfrey, Stephen J. _9296439
830		0	_aSmithsonian contributions to paleobiology ; _v100.
050	0	0	_aQE694 _b.G46 2018
082	0	4	_223 _a566.09752 _bG3457
650		0	_aGeology, Stratigraphic _yMiocene _9101970
650		0	_aGeology _zMaryland _zCalvert Cliffs _9101964
650		0	_aPaleontology _yMiocene _9147060
650		0	_aPaleontology _zMaryland _zCalvert Cliffs _9147060
650		0	_aVertebrates, Fossil _9185217
650		0	_aBiology _vClassification _962461
906			_a7 _bcbc _corignew _d1 _eecip _f20 _gy-gencatlg
942			_2ddc _c6 _h566.09752 _kG3457 _n0