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Mary H. Schweitzer
North Carolina State University
77Publications
24H-index
1,786Citations
Publications 77
Newest
Published on Mar 7, 2019in BMC Evolutionary Biology3.04
Aurore Canoville11
Estimated H-index: 11
(NCSU: North Carolina State University),
Mary H. Schweitzer24
Estimated H-index: 24
(NCSU: North Carolina State University),
Lindsay E. Zanno17
Estimated H-index: 17
(NCSU: North Carolina State University)
Background Medullary bone (MB) is an estrogen-dependent, sex-specific tissue produced by female birds during lay and inferred to be present in extinct avemetatarsalians (bird-line archosaurs). Although preliminary studies suggest that MB can be deposited within most skeletal elements, these are restricted to commercial layers or hormonally treated male pigeons, which are poor analogues for wild birds. By contrast, studies in wild bird species noted the presence of MB almost exclusively within li...
Published on 2019in PeerJ2.35
Alida M. Bailleul6
Estimated H-index: 6
(CAS: Chinese Academy of Sciences),
Jingmai K. O'Connor22
Estimated H-index: 22
(CAS: Chinese Academy of Sciences),
Mary H. Schweitzer24
Estimated H-index: 24
Published on Aug 30, 2019in Royal Society Open Science2.52
Elena R. Schroeter8
Estimated H-index: 8
(NCSU: North Carolina State University),
Kevin Blackburn11
Estimated H-index: 11
(NCSU: North Carolina State University)
+ 1 AuthorsMary H. Schweitzer24
Estimated H-index: 24
(NCSU: North Carolina State University)
Humic substances are breakdown products of decaying organic matter that co-extract with proteins from fossils. These substances are difficult to separate from proteins in solution and interfere wit...
Published on Jul 4, 2019in Proteomics3.11
Mary H. Schweitzer24
Estimated H-index: 24
,
Elena R. Schroeter8
Estimated H-index: 8
+ 1 AuthorsWenxia Zheng10
Estimated H-index: 10
Yanhong Pan13
Estimated H-index: 13
(CAS: Chinese Academy of Sciences),
Wenxia Zheng10
Estimated H-index: 10
(NCSU: North Carolina State University)
+ 13 AuthorsJingmai K. O’Connor9
Estimated H-index: 9
(CAS: Chinese Academy of Sciences)
Dinosaur fossils possessing integumentary appendages of various morphologies, interpreted as feathers, have greatly enhanced our understanding of the evolutionary link between birds and dinosaurs, as well as the origins of feathers and avian flight. In extant birds, the unique expression and amino acid composition of proteins in mature feathers have been shown to determine their biomechanical properties, such as hardness, resilience, and plasticity. Here, we provide molecular and ultrastructural...
Published on Dec 1, 2018in Nature43.07
Johan Lindgren20
Estimated H-index: 20
(Lund University),
Peter Sjövall27
Estimated H-index: 27
(Research Institutes of Sweden)
+ 20 AuthorsC. Alwmark13
Estimated H-index: 13
(Lund University)
Ichthyosaurs are extinct marine reptiles that display a notable external similarity to modern toothed whales. Here we show that this resemblance is more than skin deep. We apply a multidisciplinary experimental approach to characterize the cellular and molecular composition of integumental tissues in an exceptionally preserved specimen of the Early Jurassic ichthyosaur Stenopterygius. Our analyses recovered still-flexible remnants of the original scaleless skin, which comprises morphologically d...
Published on Nov 28, 2018in PLOS ONE2.78
Mary Higby Schweitzer3
Estimated H-index: 3
(NCSU: North Carolina State University),
Wenxia Zheng10
Estimated H-index: 10
(NCSU: North Carolina State University)
+ 2 AuthorsJohan Lindgren20
Estimated H-index: 20
Published on Sep 3, 2018
Brandon J. N. Long1
Estimated H-index: 1
(NCSU: North Carolina State University),
Wenxia Zheng10
Estimated H-index: 10
(NCSU: North Carolina State University)
+ 1 AuthorsHans Hallen20
Estimated H-index: 20
(NCSU: North Carolina State University)
The discovery of soft structures in dinosaur bone with the morphological and molecular characteristics of blood vessels in extant vertebrates was both surprising and controversial. Mounting evidence suggests that these soft tissues are blood vessels, their preservation driven in part by reactive oxygen species derived from hemoglobin degradation. More data are needed to support this hypothesis. Raman spectroscopy, and resonance Raman in particular, can provide detailed information as to the chem...
Published on Dec 1, 2017in Scientific Reports4.01
Johan Lindgren20
Estimated H-index: 20
(Lund University),
Takeo Kuriyama6
Estimated H-index: 6
(University of Hyogo)
+ 9 AuthorsNaoki Kamezaki3
Estimated H-index: 3
(Okayama University of Science)
The holotype (MHM-K2) of the Eocene cheloniine Tasbacka danica is arguably one of the best preserved juvenile fossil sea turtles on record. Notwithstanding compactional flattening, the specimen is virtually intact, comprising a fully articulated skeleton exposed in dorsal view. MHM-K2 also preserves, with great fidelity, soft tissue traces visible as a sharply delineated carbon film around the bones and marginal scutes along the edge of the carapace. Here we show that the extraordinary preservat...
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