WorldCat Identities

Gaffney, Eugene S.

Works: 82 works in 221 publications in 1 language and 2,994 library holdings
Genres: Conference papers and proceedings  Classification  History 
Roles: Author, Creator, Contributor, Other
Publication Timeline
Most widely held works about Eugene S Gaffney
Most widely held works by Eugene S Gaffney
Discovering dinosaurs in the American Museum of Natural History by Mark Norell( Book )

4 editions published in 1995 in English and held by 797 WorldCat member libraries worldwide

What does the fossil record really tell us about the evolution and extinction of dinosaurs? What was the dinosaurs' exact relationship to the rest of the organic world? And what do they disclose about our own place in history of life?the authors use photgraphs, origiinal drawings, maps, charts, diagrams and historical and contemporary narratives to answer all our questions, from the most basic to the most sophisticated about the lives and characteristics of dinosaurs; to provide a complete picture of the most important skeletons exhibited in the Halls of Dinosaurs
Phylogenetic analysis and paleontology : proceedings of a symposium entitled "Phylogenetic models," convened at the North American Paleontological Convention II, Lawrence, Kansas, August 8, 1977 by Phylogenetic Models (Conference)( Book )

3 editions published in 1979 in English and held by 473 WorldCat member libraries worldwide

Studies how phylogenetic analysis is important in paleontology and that attempts to systematize fossil species should be based on an analysis of phylogenetic history
Discovering dinosaurs : evolution, extinction, and the lessons of prehistory by Mark Norell( Book )

11 editions published between 1995 and 2000 in English and held by 419 WorldCat member libraries worldwide

"This book addresses the questions of what the fossil record tells us about the evolution and extinction of dinosaurs, what their relationship to the rest of the organic world was, and what we can learn from them about our own place in the history of life on our planet. This edition has been updated throughout, and the authors have provided a new final chapter."--BOOK JACKET
The systematics of the North American family Baenidae (Reptilia, Cryptodira) by Eugene S Gaffney( Book )

7 editions published in 1972 in English and held by 83 WorldCat member libraries worldwide

"A systematic revision of the North American family Baenidae has resulted in the following conclusions: 1) The family ranges from Albian, early Cretaceous, to Uintan, late Eocene, in age. 2) Definite members of the family are presently known only from North America. 3) Eight genera including nine species are soundly based on skull material: Trinitichelys hiatti, new genus and new species; Hayemys latifrons (Hay), new genus; Plesiobaena antiqua (Lambe), new genus; Plesiobaena putorius, new genus and new species; Eubaena cephalica (Hay); Stygiochelys estesi Gaffney and Hiatt; Palatobaena bairdi, new genus and new species; Baena arenosa Leidy; and Chisternon undatum (Leidy). Four more genera with one species each are known only from shells: Compsemys victa Leidy; Neurankylus eximius Lambe; Boremys pulchra Lambe; and Thescelus insiliens Hay. The following are nomina dubia: Polythorax missuriensis Cope; 'Neurankylus' wyomingensis Gilmore; 'Baena' hayi Gilmore; 'Baena' nodosa Gilmore; Chisternon interpositum Hay; 'Baena' ornata Gilmore; and 'Baena' platyplastra Gilmore. 4) The family Glyptopsidae has the nearest ancestor in common with the family Baenidae; together they constitute the superfamily Baenoidea. A classification based in part on degree of morphologic diversity but consistent with the phylogeny is developed. A strictly phylogenetic classification is also presented"--P. 245
Phylogeny of the chelydrid turtles : a study of shared derived characters in the skull by Eugene S Gaffney( Book )

3 editions published in 1975 in English and held by 81 WorldCat member libraries worldwide

The turtle genera Chelydra (Recent, North America), Macroclemys (Recent, North America), Platysternon (Recent, Asia), Protochelydra (Paleocene, North America), and Macrocephalochelys (Pliocene, Asia) are hypothesized as a strictly monophyletic group on the basis of a shared derived character study of the skull. The five genera are therefore placed in the Family Chelydridae. The primary characters used involved the degree of temporal and cheek emargination along with changes in bone size and shape in the skull roof. Protochelydra, with the most extensive emarginations is proposed as the primitive end of a morphocline series culminating in Platysternon, which has the least emarginate condition. Cranial diagnoses for the testudinoid families Chelydridae, Emydidae, and Testudinidae are included
Comparative cranial morphology of Recent and fossil turtles by Eugene S Gaffney( Book )

3 editions published in 1979 in English and held by 79 WorldCat member libraries worldwide

"Comparative descriptions of the cranial morphology in living and extinct turtles are presented in this paper. Descriptions are arranged by bone rather than by taxon and attempt to document the types and degrees of differences in cranial structures within the Testudines, emphasizing features of systematic interest. Developmental information is also included. 273 figures supplement the text. About half of these figures show detailed internal morphology and include comparative series showing horizontal and sagittal sections, and oblique views of ear regions for each of the living families of turtles as well as for those extinct families where this information is available. Additional figures, some of which are taken from the literature, show disarticulated elements, inner ear regions, arterial and nerve foramina and canals, and basicranial morphology. The other half of the figures are dorsal, lateral, and ventral views (also occipital views in many cases) of the skull in nearly all living genera of turtles and many extinct genera. The higher category classification used is that developed by Gaffney (1975d) and no taxonomic novelties are announced. A section of text provides a brief literature revew of chelonian systematics and cranial morphology and a listing (by family) of useful turtle skull illustrations from the literature. A revised glossary of anatomical terms and an index are included"--P. 69
Morphology and evolution of turtles : proceedings of the Gaffney Turtle Symposium (2009) in honor of Eugene S. Gaffney by Donald Brinkman( Book )

8 editions published between 2012 and 2013 in English and held by 78 WorldCat member libraries worldwide

This volume celebrates the contributions of Dr. Eugene Gaffney to the study of turtles, through a diverse and complementary collection of papers that showcases the latest research on one of the most intriguing groups of reptiles. A mix of focused and review papers deals with numerous aspects of the evolutionary history of turtles, including embryonic development, origins, early diversification, phylogenetic relationships, and biogeography. Moreover it includes reports on important but poorly understood fossil turtle assemblages, provides historical perspectives on turtle research, and documents disease and variation in turtles. With its broad scope, which includes descriptions of material and new taxa from Australia, Asia, and Europe, as well as North and South America, this work will be an essential resource for anyone interested in the morphology and evolution of turtles. "This volume's breadth of time, geography, and taxonomic coverage makes it a major contribution to the field and a 'must have' for all vertebrate paleontologists.", James F. Parham, California State University, CA, USA "A comprehensive and sweeping overview of turtle evolution by the top experts in the field that will interest everyone curious about these unique reptiles." Jason S. Anderson, University of Calgary, Canada "An invaluable addition to the literature that covers the full spectrum of approaches toward understanding the evolution of these noble creatures." Ann C. Burke, Wesleyan University, CT, USA "A truly comprehensive volume that both the student of fossil turtles, as well as the general reader interested in these enigmatic creatures, will find fascinating." Tyler Lyson, Yale University, CT, USA
The Jurassic turtles of North America by Eugene S Gaffney( Book )

6 editions published in 1979 in English and held by 70 WorldCat member libraries worldwide

"There are two valid turtle taxa from the North American late Jurassic Morrison Formation: Glyptops plicatulus, distinguished by a fine, pustulose shell ornamentation, last vertebral scute partially dividing the last pair of marginal scutes, and a smoothly convex anterior margin of the plastron; and Dinochelys whitei, new genus and species, distinguished by a smooth shell surface, last vertebral scute not dividing the last pair of marginal scutes, and an anterior plastral margin with lobes formed by the gular and intergular scutes. presumed juveniles of Glyptops and Dinochelys suggest that prominent carapacial ridges characterize juveniles of these two taxa and that the ridges are lost in adults. Probaena sculpta Hay is considered a nomen dubium because it is an unidentifiable juvenile, presumably of Glyptops or Dinochelys. Taxa previously referred to Glyptops but here considered indeterminant are: 'Glyptops' pervicax, 'Glyptops' belviderensis, 'Glyptops' caelatus, 'Glyptops' depressus, and 'Glyptops' ruetimeyeri. Dinochelys is placed Cryptodira incertae sedis because the higher systematics of cryptodires is based on skull morphology and the skull is lacking in this form. A cranial study of Glyptops suggests that it and Mesochelys form a monophyletic group, the Glyptopsidae, that is characterized by one derived character: the basisphenoid extends the length of, and completely separates, the pterygoids. I follow Evans and Kemp's (1976) suggestion that the Baenoidea of Gaffney (1972 and 1975) is not monophyletic and that the Glyptopsidae is the sister group of the remaining cryptodires. Baenidae and Eucryptodira would form a monophyletic group sharing the derived character: posterior temporal emargination separating or nearly separating parietal and squamosal"--P. 95
The cranial morphology of the extinct horned turtle, Meiolania platyceps, from the Pleistocene of Lord Howe Island, Australia by Eugene S Gaffney( Book )

2 editions published in 1983 in English and held by 68 WorldCat member libraries worldwide

"Meiolania platyceps is the best known of the extinct horned turtles of the Southern Hemisphere. Five skulls and hundreds of cranial elements have been collected from Pleistocene rocks on Lord Howe Island, New South Wales, over the past 100 years. The skull of Meiolania platyceps has the following features of the family Meiolaniidae: (1) Squamosal and supraoccipital produced into large posteriorly and posterolaterally directed processes that extend clear of the skull roof; (2) Medial plate of pterygoid separated ventrally from basisphenoid to form intrapterygoid slit. Meiolania platyceps can be identified as Crytodira on the possession of: (1) A processus trochlearis oticum on the anterior edge of the otic chamber; (2) A pterygoid that extends posteriorly between quadrate and braincase; (3) A descending process of the prefrontal that meets the vomer ventromedially. Within the Crytodira, Meiolania platyceps can be identified as Eucryptodira based on the posterior position of the foramen posterius canalis carotici interni"--Page 364
A phylogeny and classification of the higher categories of turtles by Eugene S Gaffney( Book )

5 editions published in 1975 in English and held by 67 WorldCat member libraries worldwide

"Shared derived characters of the basicranium provide the basis for a new theory of relationships and a new classification of the major groups of living and extinct turtles. Post-Triassic turtles are characterized by a jaw-closing mechanism where the main adductor tendon rides over a trochlea, a condition unique among vertebrates. A study of the trochlear mechanism and associated basicranial adaptations for akinesis suggests that the trochlea evolved independently in cryptodires and pleurodires. Cranial arteries and the canals and foramina associated with them provide characters used to develop hypotheses of relationships among the Cryptodira. The taxon 'Amphichelydia,' characterized by primitive features and supposedly containing the ancestors of recent turtles, is rejected and its members distributed to monophyletic taxa"--P. 391
Cranial morphology of the European Jurassic turtles, Portlandemys and Plesiochelys by Eugene S Gaffney( Book )

2 editions published in 1976 in English and held by 64 WorldCat member libraries worldwide

"A theory of relationships is presented in which the Jurassic turtle genera Portlandemys and Plesiochelys are hypothesized as members of the monophyletic group Chelonioidea based on the possession of the following shared derived characters: 1) dorsum sellae high and separated from sella turcica and foramen anterius canalis carotici interni by prominent bone surface that usually has a sagittal ridge, 2) posterior part of sella turcica not concealed by overhanging dorsum sellae. The relationships of these genera within the Chelonioidea are more difficult to test owing to the fact that at present only the Recent forms are cranially as well known as Portlandemys and Plesiochelys. Nonetheless, I have suggested two contradictory hypotheses, one indicating Plesiochelys and Portlandemys as the sister group of the Dermochelyidae plus Cheloniidae, and the other indicating Plesiochelys as the sister group of the Toxochelyidae, Dermochelyidae, and Cheloniidae. The first hypothesis is consistent with derived characters of the palatine artery, whereas the second is consistent with postcranial derived characters"--p. 491
Discovering dinosaurs by Mark Norell( Book )

5 editions published in 1995 in English and Undetermined and held by 63 WorldCat member libraries worldwide

Evolution of the side-necked turtles : the families Bothremydidae, Euraxemydidae, and Araripemydidae by Eugene S Gaffney( Book )

6 editions published in 2006 in English and held by 34 WorldCat member libraries worldwide

There are other turtle families with bizarre skull morphologies (e.g., Nanhsiungchelyidae; Meiolaniidae) but these are not taxonomically diverse, at least as they are now known. In no other family do we see the extremes exemplified by the skulls of forms like Cearachelys, Bothremys, Labrostochelys, Azzabaremys, Rhothonemys, and Phosphatochelys. It is this remarkable variation in skull morphology that has allowed us to formulate a strong hypothesis of bothremydid relationships in spite of the presence in Pelomedusoides of remarkably uniform shells
Redescription of the skull of Dacquemys Williams, 1954, a podocnemidid side-necked turtle from the late Eocene of Egypt( )

3 editions published in 2002 in English and held by 33 WorldCat member libraries worldwide

The known material of the side-necked turtle Dacquemys paleomorpha Williams, 1954, consists of the type skull and a new skull from the late Eocene of Egypt. Dacquemys is reaffirmed as a member of the Podocnemididae because of its well-developed cavum pterygoideus. Within the Podocnemididae Dacquemys uniquely possesses a fully roofed temporal region produced by a posteriorly extensive parietal and wide supraoccipital, a very wide interorbital area, and two accessory maxillary ridges meeting anteriorly to form an enclosed trough
Side-necked turtle lower jaws (Podocnemididae, Bothremydidae) from the late Cretaceous Maevarano Formation of Madagascar by Eugene S Gaffney( Book )

5 editions published in 2003 in English and held by 22 WorldCat member libraries worldwide

Two lower jaws from the upper part (early Maastrichtian) of the late Cretaceous Maevarano Formation in the Mahajanga Basin, northwestern Madagascar, are identified as belonging to side-necked turtles (Pleurodira). A nearly complete lower jaw is identified as cf. Erymnochelys because of its close resemblance to the living Malagasy Erymnochelys madagascariensis. Both uniquely possess the combination of a posteriorly directed processus retroarticularis and a nearly identical triturating surface that is narrow anteriorly with a horizontal labial ridge and a dorsally rising lingual ridge. A second specimen, consisting of an incomplete symphyseal region, is questionably identified as Bothremydidae on the basis of a thick wedge-shaped symphysis with partial or complete pits on the rami. The cf. Erymnochelys specimen is the oldest record of Erymnochelys or a taxon very similar to it, and it indicates the persistence of a Mesozoic element in the extant Malagasy turtle fauna. The possible bothremydid jaw suggests a more cosmopolitan element now extinct
Evolution of the side-necked turtles : the family Podocnemididae by Eugene S Gaffney( Book )

5 editions published between 2010 and 2011 in English and held by 21 WorldCat member libraries worldwide

The family Podocnemididae consists of 20 genera and 30 species considered here as valid and diagnosable by cranial characters. Three of these genera and eight species persist into the Recent fauna, barely reflecting the evolutionary diversity and distribution of the group. The family extends from the late Cretaceous to the Recent and occurs in North and South America, Europe, Asia, and Africa. A phylogenetic analysis utilizes 31 podocnemidid taxa (30 named and one unnamed; a total of 37 taxa analyzed includes outgroups) in the Podocnemididae that are analyzed using PAUP. The resulting consensus of nine equally parsimonious cladograms is the basis for a new classification of the family. The family Podocnemididae is reconfirmed as monophyletic, using the unique possession of a cavum pterygoidei formed by the basisphenoid, pterygoid, prootic, and quadrate, underlain by the pterygoid and basisphenoid, among other characters. Much of our resolution agrees with that of França and Langer (2006), which can be modified and restated as follows: (Bauruemys (vilavilensis (Podocnemis (Peltocephalus, Erymnochelys)))). The two clades proposed by Broin (1991) and Lapparent de Broin (2000b, 2001, 2003a, 2003b), designated by her as the "subfamily Podocnemidinae" and the "subfamily Erymnochelinae," are inconsistent with our analysis. In our analysis the "Podocnemidinae" (sensu Broin, 1991) is paraphyletic, and the "Erymnochelinae" (sensu Broin, 1991) could be made monophyletic, with the important addition of Peltocephalus (placed in the "Podocnemidinae" by Broin). We add a number of new taxa to the basal Podocnemididae and to the broad-jawed subtribe Stereogenyina. Within the family Podocnemididae Cope, 1868, the sister taxon to all other podocnemidids and recognized as the subfamily Bauruemydinae, new, is Bauruemys elegans (Suárez, 1969a), known from associated skulls and shells. All other podocnemidids, the redefined subfamily Podocnemidinae Cope, 1868, are united by a slight to absent temporal emargination, a completely closed foramen jugulare posterius, and saddle-shaped cervical centra (modified as a separate state in Erymnochelys). A basal group of Cretaceous-Paleocene podocnemidids that are the sister group to all remaining podocnemidids, here termed the infrafamily Peiropemydodda, consisting of two taxa from the late Cretaceous of Brazil, Peiropemys mezzalirai, n. gen. et sp., and Pricemys caiera, n. gen. et sp., and Lapparentemys vilavilensis (Broin, 1971), n. gen., from the Paleocene of Bolivia. The resolution of the basal members of the family is: (Bauruemys (Pricemys (Lapparentemys, Peiropemys)) (Infrafamily Podocnemidodda)). The remaining podocnemidids form the infrafamily Podocnemidodda Cope, 1868, new rank, and is characterized by the possession of a cheek emargination that does not reach above the level of the orbit, the medial expansion of the triturating surfaces with a median maxillary ridge present, and the presence of accessory ridges on the triturating surfaces. This group contains the living podocnemidids and a series of extinct forms, including the marine broad-jawed taxa
Redescription of the skull of Ummulisani rutgersensis Gaffney, Tong, and Meylan, 2006, a bothremydid side-necked turtle from the Eocene of Morocco by Eugene S Gaffney( )

3 editions published in 2008 in English and held by 21 WorldCat member libraries worldwide

Three skulls of Ummulisani rutgersensis are described here as an addendum to the descriptions and analyses presented in Gaffney et al. (2006a). The present paper is essentially a replacement for the Ummulisani cranial morphology text in that paper (Gaffney et al. 2006a: 447-457). The original description was based primarily on one skull, AMNH 30563, the type of Ummulisani rutgersensis. Because two previously undescribed skulls, AMNH 30569 and AMNH 30562, are more complete, they add significantly to our understanding of this taxon. However, it does not alter the results of the phylogenetic analysis by Gaffney et al. (2006a), in that Ummulisani rutgersensis remains the sister taxon to Phosphatochelys tedfordi
Acleistochelys, a new side-necked turtle (Pelomedusoides, Bothremydidae) from the Paleocene of Mali( )

2 editions published in 2007 in English and held by 20 WorldCat member libraries worldwide

The Paleocene Teberemt Formation south of the Adrar des Iforas Mountains, between Saguirilidad and In Fargas, Mali, yielded a nearly complete skull of a new genus and species of side-necked turtle, Acleistochelys maliensis. Acleistochelys is a member of the family Bothremydidae Baur, 1891, because: (1) the fossa precolumellaris is absent, (2) the foramen stapedio-temporale faces anteriorly, (3) the eustachian tube is separated from the stapes by bone, and (4) an exoccipital-quadrate contact is present. Within the Bothremydidae, Acleistochelys belongs to the tribe Taphrosphyini because: (1) the maxilla-quadratojugal contact is absent, (2) the palate is dorsally arched, (3) there is only a small contribution of the palatine to the triturating surfaces, and (4) the septum orbitotemporale is at least partially open. Acleistochelys is most closely related to Azabbaremys because both share a narrow vomer lacking a posterior attachment to the palatines. The specimen was found in a marine limestone associated with crocodiles, echinoids, and mollusks
Sankuchemys, a new side-necked turtle (Pelomedusoides, Bothremydidae) from the late Cretaceous of India( Book )

3 editions published in 2003 in English and held by 20 WorldCat member libraries worldwide

The Maastrichtian Deccan Intertrappean beds of Amboli Quarry, Bombay, yielded the skull of a new genus of side-necked turtle. Sankuchemys sethnai, new genus and species, is a pelomedusoid pleurodire belonging to the family Bothremydidae Baur, 1891, based on these characters: (1) exoccipital-quadrate contact, and (2) foramen stapedio-temporale not visible in dorsal view. Sankuchemys is most closely related to Kurmademys from the Maastrichtian of Tamil Nadu, because among bothremydids they uniquely share a highly emarginated temporal roof and a small postorbital. Sankuchemys is unique among bothremydids in having an accessory ridge on the triturating surface
The Transylvanian turtle, Kallokibotion, a primitive cryptodire of Cretaceous Age by Eugene S Gaffney( Book )

5 editions published in 1992 in English and held by 20 WorldCat member libraries worldwide

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Discovering dinosaurs : evolution, extinction, and the lessons of prehistory
Morphology and evolution of turtles : proceedings of the Gaffney Turtle Symposium (2009) in honor of Eugene S. Gaffney
Alternative Names
Eugene Gaffney

Eugene Gaffney paléontologue américain (1942-)

Eugene S. Gaffney Amerikaans paleontoloog

Eugene S. Gaffney paleontólogo estadounidense

يوجين إس. غافني إحاثي من الولايات المتحدة الأمريكية


English (93)