1
40
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Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
<a href="http://doi.org/10.1098/rspb.2008.0912" target="_blank" rel="noreferrer noopener">http://doi.org/10.1098/rspb.2008.0912</a>
Pages
2609–2615
Issue
1651
Volume
275
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Relative growth rates of predator and prey dinosaurs reflect effects of predation.
Publisher
An entity responsible for making the resource available
Proceedings. Biological sciences
Date
A point or period of time associated with an event in the lifecycle of the resource
2008
2008-11
Subject
The topic of the resource
Aging/physiology; Animals; Dinosaurs/*growth & development; Fossils; Predatory Behavior/*physiology; Sexual Maturation; Species Specificity
Creator
An entity primarily responsible for making the resource
Cooper Lisa Noelle; Lee Andrew H; Taper Mark L; Horner John R
Description
An account of the resource
Hadrosaurs grew rapidly, and quantifying their growth is key to understanding life-history interactions between predators and prey during the Late Cretaceous. In this study, we longitudinally sampled a sequence of lines of arrested growth (LAGs) from an essentially full-grown hadrosaur Hypacrosaurus stebingeri (MOR 549). Spatial locations of LAGs in the femoral and tibial transverse sections of MOR 549 were measured and circumferences were calculated. For each bone, a time series of circumference data was fitted to several stochastic, discrete growth models. Our results suggest that the femur and the tibia of this specimen of Hypacrosaurus probably followed a Gompertz curve and that LAGs reportedly missing from early ontogeny were obscured by perimedullary resorption. In this specimen, death occurred at 13 years and took approximately 10-12 years to reach 95 per cent asymptotic size. The age at growth inflection, which is a proxy for reproductive maturity, occurred at approximately 2-3 years. Comparisons with several small and large predatory theropods reveal that MOR 549 grew faster and matured sooner than they did. These results suggest that Hypacrosaurus was able to partly avoid predators by outgrowing them.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1098/rspb.2008.0912" target="_blank" rel="noreferrer noopener">10.1098/rspb.2008.0912</a>
Rights
Information about rights held in and over the resource
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
2008
Aging/physiology
Animals
Cooper Lisa Noelle
Department of Anatomy & Neurobiology
Dinosaurs/*growth & development
Fossils
Horner John R
Lee Andrew H
NEOMED College of Medicine
Predatory Behavior/*physiology
Proceedings. Biological sciences
Sexual Maturation
Species Specificity
Taper Mark L
-
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
URL Address
<a href="http://doi.org/10.1098/rspb.2018.2417" target="_blank" rel="noreferrer noopener">http://doi.org/10.1098/rspb.2018.2417</a>
Rights
Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).
Pages
20182417-20182417
Issue
1896
Volume
286
NEOMED College
NEOMED College of Medicine
NEOMED Department
Department of Anatomy & Neurobiology
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Unexpected evolutionary patterns of dental ontogenetic traits in cetartiodactyl mammals.
Publisher
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Proceedings. Biological sciences
Date
A point or period of time associated with an event in the lifecycle of the resource
2019
2019-02
Subject
The topic of the resource
*Phylogeny; life history; Cetartiodactyla; dental eruption; herbivory
Creator
An entity primarily responsible for making the resource
Rodrigues Helder Gomes; Lihoreau Fabrice; Orliac Maeva; Thewissen J G M; Boisserie Jean-Renaud
Description
An account of the resource
Studying ontogeny in both extant and extinct species can unravel the mechanisms underlying mammal diversification and specialization. Among mammalian clades, Cetartiodactyla encompass species with a wide range of adaptations, and ontogenetic evidence could clarify longstanding debates on the origins of modern specialized families. Here, we study the evolution of dental eruption patterns in early diverging cetartiodactyls to assess the ecological and biological significance of this character and shed new light on phylogenetic issues. After investigation of the ontogenetic dental series of 63 extinct genera, our parsimony reconstructions of eruption state evolution suggest that the eruption of molars before permanent premolars represents a plesiomorphic condition within Cetartiodactyla. This result substantially differs from a previous study based on modern species only. As a result, the presence of this pattern in most ruminants might represent an ancestral condition contributing to their specialized herbivory, rather than an original adaptation. In contrast, the late eruption of molars in hippopotamoids is more likely related to biological aspects, such as increases in body mass and slower pace of life. Our study mainly shows that eruption sequences reliably characterize higher level cetartiodactyl taxa and could represent a new source of phylogenetic characters, especially to disentangle the origin of hippopotamoids and cetaceans.
Identifier
An unambiguous reference to the resource within a given context
<a href="http://doi.org/10.1098/rspb.2018.2417" target="_blank" rel="noreferrer noopener">10.1098/rspb.2018.2417</a>
*Phylogeny
2019
Boisserie Jean-Renaud
Cetartiodactyla
dental eruption
Department of Anatomy & Neurobiology
herbivory
life history
Lihoreau Fabrice
NEOMED College of Medicine
Orliac Maeva
Proceedings. Biological sciences
Rodrigues Helder Gomes
Thewissen J G M