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A new species of deer from the early Middle Pleistocene, and the origins of modern fallow deer
No full textThe ancestry of fallow deer (Dama) is found in Late Pliocene to Early Pleistocene Pseudodama, deer with unpalmated four-point antlers. Dama with palmated antlers first appears in the late Middle Pleistocene. Until now, fallow deer from the intervening early Middle Pleistocene were very poorly known
The unique features shared by a specimen from Pakefield (UK) and one from Soleilhac (France) justify the recognition of a new species, Dama roberti, named for Robert Mutch and Félix Robert.
The form of the antler base and details of the teeth and bones make clear that the new species is part of the Pseudodama/Dama group. Some characters of D. roberti are primitive, reminiscent of Pseudodama. The loss of the middle tine might be a continuation of a trend of reduction in late Pseudodama. The incipient flattening (palmation) could indicate ancestry to later Dama, or be a parallel acquisition.
Two possible phylogenetic trees are suggested: either D. roberti is close to the ancestry of modern fallow deer, or it is a separate branch of the Pseudodama group and should probably be referred to that genus. Based on antler characters both trees require five transitions so, on that basis, one tree cannot be chosen as more parsimonious than the other. This question is currently being addressed by a phylogenetic analysis based on more than 80 characters of antlers, teeth and bones in the context of other European Pleistocene deer species
The mysterious early Middle Pleistocene fallow deer: a possible link between Early Pleistocene “Pseudodama” and recent Dama dama
No full textDama roberti, a new species of deer from the early Middle Pleistocene of Europe, and the origins of modern fallow deer
No full textThe ancestry of the modern Fallow deer, Dama dama, has been tentatively traced back to Pliocene/Early Pleistocene forms referred to ‘Pseudodama’, characterized by unpalmated three- or four-point antlers. By the late Middle Pleistocene, Dama with palmated antlers occurs, as D. dama clactoniana. However, fallow deer from the interim period, the early Middle Pleistocene, are poorly-known. A new specimen from Pakefield (Suffolk, UK), represented by a portion of cranium with a substantial part of both antlers plus a mandible and scapula, is the most complete small deer specimen from the British early Middle Pleistocene (ca. 700 ka). The position and orientation of the basal tine, together with dental characters and mandibular morphology, are typical of fallow deer. The narrow palmation is reminiscent of D. dama clactoniana, but the lack of palmation tines is unique. Moreover, the lack of second (and third) tines in an adult specimen differs from both D. dama dama and D. d. clactoniana, being a primitive character shared with the last representatives of ‘Pseudodama’, which, on the other hand, has a circular beam, lacking any palmation. This combination of features justifies the erection of a new species provisionally placed within the genus Dama, D. roberti n.sp. Another specimen from Soleilhac (Auvergne, France), represented by portion of the two antlers, a mandible and a tibia, shares antler morphology with the Pakefield specimen and can be ascribed to the same new species. Isolated antler and dental remains from coeval British sites are tentatively ascribed to the new species. The new find has implications for the ancestry of modern fallow deer
Lister, A W, NX49847
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/399603Surname: LISTER. Given Name(s) or Initials: A W. Military Service Number or Last Known Location: NX49847. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 37258.217535
Item: [2016.0049.31896] "Lister, A W, NX49847
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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