Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Maria E. McNamara"'
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-12 (2024)
Abstract Fossil feathers have transformed our understanding of integumentary evolution in vertebrates. The evolution of feathers is associated with novel skin ultrastructures, but the fossil record of these changes is poor and thus the critical trans
Externí odkaz:
https://doaj.org/article/4d95cf56638c4b918ace6c228ebdee16
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-14 (2024)
Abstract The Eocene Geiseltal Konservat-Lagerstätte (Germany) is famous for reports of three dimensionally preserved soft tissues with sub-cellular detail. The proposed mode of preservation, direct replication in silica, is not known in other fossil
Externí odkaz:
https://doaj.org/article/f0a9fdd2dd294961b5a98b009a05646b
Autor:
Tiffany S. Slater, Shosuke Ito, Kazumasa Wakamatsu, Fucheng Zhang, Peter Sjövall, Martin Jarenmark, Johan Lindgren, Maria E. McNamara
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-15 (2023)
Abstract Melanin pigments play a critical role in physiological processes and shaping animal behaviour. Fossil melanin is a unique resource for understanding the functional evolution of melanin but the impact of fossilisation on molecular signatures
Externí odkaz:
https://doaj.org/article/456bca3c91684e218945540b82d7f281
Autor:
Yan-jie Zhang, Peter J. M. Shih, Jun-you Wang, Maria E. McNamara, Chungkun Shih, Dong Ren, Tai-ping Gao
Publikováno v:
BMC Ecology and Evolution, Vol 21, Iss 1, Pp 1-21 (2021)
Abstract Background Sexual dimorphism is widespread in insects. The certain specialized structures may be used as weapons in male–male combats or as ornaments to enhance mating opportunities. Results We report striking swollen first tarsal segments
Externí odkaz:
https://doaj.org/article/d73891bef6a64df3b36168e39d817828
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-10 (2020)
Abstract Fossil melanosomes, micron-sized granules rich in melanin in vivo, provide key information for investigations of the original coloration, taxonomy and internal anatomy of fossil vertebrates. Such studies rely, in part, on analysis of the ino
Externí odkaz:
https://doaj.org/article/bbd9503468144e7688af3b183f4f862e
Autor:
Maria E. McNamara, Jonathan S. Kaye, Michael J. Benton, Patrick J. Orr, Valentina Rossi, Shosuke Ito, Kazumasa Wakamatsu
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-9 (2018)
The colour of extinct animals has been inferred from fossilized melanosomes – organelles rich in melanin. Here, the authors show that internal melanosomes that do not contribute to colour are abundant in some extant vertebrates and may redistribute
Externí odkaz:
https://doaj.org/article/4bda4163549d45a794d3d4421c9c8dec
Autor:
Maria E. McNamara, Fucheng Zhang, Stuart L. Kearns, Patrick J. Orr, André Toulouse, Tara Foley, David W. E. Hone, Chris S. Rogers, Michael J. Benton, Diane Johnson, Xing Xu, Zhonghe Zhou
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-7 (2018)
In addition to the evolutionary innovation of feathers, bird skin has complex adaptations. Here, McNamara and colleagues examine exceptionally preserved skin from feathered dinosaurs and ancient birds from the Cretaceous and show the early acquisitio
Externí odkaz:
https://doaj.org/article/4b76764c8c8c49ab9b8ad0d35c469dce
Publikováno v:
Papers in Palaeontology. 8
The Geiseltal biota is an Eocene lacustrine Konservat-Lagerstätte in central Germany. Despite its rich fauna and flora (over 50 000 fossil vertebrates, insects and other invertebrates, plants and trace fossils) the taphonomy of the biota, and of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bcb2d111c0dd51323746386c61915517
https://doi.org/10.1002/spp2.1453
https://doi.org/10.1002/spp2.1453
Publikováno v:
Palaeontology
A key feature of the pigment melanin is its high binding affinity for trace metal ions. In modern vertebrates trace metals associated with melanosomes, melanin-rich organelles, can show tissue-specific and taxon-specific distribution patterns. Such s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7d99b7b4038d128ffd3ed84a75bf676
https://hdl.handle.net/10468/11870
https://hdl.handle.net/10468/11870
Autor:
Tiffany S. Slater, Patrick J. Orr, Shosuke Ito, Tara Foley, Maria E. McNamara, Kazumasa Wakamatsu
Publikováno v:
Palaeontology
Fossils are a key source of data on the evolution of feather structure and function through deep time, but their ability to resolve macroevolutionary questions is compromised by an incomplete understanding of their taphonomy. Critically, the relative
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7f9bc128140ef271c9c25aaf09e679d
https://doi.org/10.1111/pala.12445
https://doi.org/10.1111/pala.12445