Long bone histology of<i>Metoposaurus diagnosticus</i>(Temnospondyli) from the Late Triassic of Krasiejów (Poland) and its paleobiological implications

Konietzko-Meier, Dorota; Sander, P. Martin

doi:10.1080/02724634.2013.765886

Cited by 47 publications

(66 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This also applies in temnospondyls (Damiani, 2000; Steyer et al, 2004; Ray, Mukherjee & Bandyopadhyay, 2009; Mukherjee, Ray & Sengupta, 2010; Sanchez et al, 2010a; Sanchez et al, 2010b; Konietzko-Meier & Klein, 2013; Konietzko-Meier & Sander, 2013; Konietzko-Meier & Schmitt, 2013; Sanchez & Schoch, 2013; Konietzko-Meier, Danto & Gądek, 2014). In the long bones, the three main types of growth marks are known: fast growing zones, more slowly deposited annuli, and Lines of Arrested Growth (LAG-s) that indicate the cessation of the growth (Francillon-Vieillot et al, 1990).…”

Section: Discussionmentioning

confidence: 97%

“…Histology of the long bones in Metoposaurus krasiejowensis is well known (Konietzko-Meier & Klein, 2013; Konietzko-Meier & Sander, 2013), and an evaluation and correlation of the growth patterns preserved in long bones and dermal bones is possible. Indirect estimation of the individual age of the studied skull is possible based on the morphological characters and size-comparison with the femora.…”

Section: Discussionmentioning

confidence: 99%

“…It suggests that accumulation of external resting lines does not mean the cessation of growth at all (EFS), but only the oscillation in growth rate during one season (Konietzko-Meier & Klein, 2013; Konietzko-Meier & Sander, 2013). The complex with accumulation of resting lines is interpreted as a single annulus deposited during one, dry season (Konietzko-Meier & Sander, 2013; Konietzko-Meier & Klein, 2013) and together with the more vascularized zone represents a full annual growth cycle. However, in the skull, resting lines occur only once in the outermost part of external cortex following the high vascularized layer.…”

Section: Discussionmentioning

confidence: 99%

“…Instead, adjacent to the annuli, numerous lines are present. To avoid nomenclatural problems, all lines representing the cessation of growth are referred to in this study as resting lines, without determination of whether they occur annually or not (Konietzko-Meier & Sander, 2013; also see discussion).…”

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

Cranial bone histology ofMetoposaurus krasiejowensis(Amphibia, Temnospondyli) from the Late Triassic of Poland

Gruntmejer

Konietzko-Meier

Bodzioch

2016

PeerJ

Self Cite

View full text Add to dashboard Cite

In this study, 21 skull bones of Metoposaurus krasiejowensis from the Late Triassic of Poland were investigated histologically. Dermal bones show a diploë structure, with an ornamented external surface. The ridges consist of mostly well vascularized parallel-fibered bone; the valleys are built of an avascular layer of lamellar bone. The thick middle region consists of cancellous bone, with varying porosity. The thin and less vascularized internal cortex consists of parallel-fibered bone. The numerous Sharpey’s fibers and ISF are present in all bones. The cyclicity of growth is manifested as an alternation of thick, avascular annuli and high vascularized zones as well as a sequence of resting lines. The detailed histological framework of dermal bones varies even within a single bone; this seems to be related to the local biomechanical loading of the particular part of the skull. The dynamic processes observed during the ornamentation creation indicate that the positions of the ridges and grooves change during growth and could be a specific adaptation to changing biomechanical conditions and stress distribution during bone development. In the supratemporal, the cementing lines show that the remodeling process could be involved in the creations of sculpture. The common occurrence of ISF suggests that metaplastic ossification plays an important role during cranial development. Endochondral bones preserved the numerous remains of calcified cartilage. This indicates that ossification follows a pattern known for stereospondyl intercentra, with relatively slow ossification of the trabecular part and late development of the periosteal cortex. The large accumulation of Sharpey’s fibers in the occipital condyles indicates the presence of strong muscles and ligaments connecting the skull to the vertebral column.

show abstract

Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Cranial bone histology ofMetoposaurus krasiejowensis(Amphibia, Temnospondyli) from the Late Triassic of Poland

Gruntmejer

Konietzko-Meier

Bodzioch

2016

PeerJ

Self Cite

View full text Add to dashboard Cite

show abstract

“…Previously sampled anamniotic tetrapods that best demonstrate intraspecific histological variability are Dutuitosaurus ouazzoui (Steyer et al, 2004), Metoposaurus diagnosticus from Poland (Konietzko-Meier and Klein, 2013;Konietzko-Meier and Sander, 2013) and Gerrothorax pulcherrimus (Sanchez and Schoch, 2013).…”

Section: The Origin Of the Variabilitymentioning

confidence: 98%

The discrepancy between morphological and microanatomical patterns of anamniotic stegocephalian postcrania from the Early Permian Briar Creek Bonebed (Texas)

Konietzko-Meier

Shelton

Sander

2016

Comptes Rendus Palevol

Self Cite

View full text Add to dashboard Cite

a b s t r a c tThe histological framework of thirteen Early Permian tetrapod long bones from a single locality, the Briar Creek Bonebed in Archer County, Texas, USA, is described from a series of transverse sections through the midshafts. The bones were morphologically categorized and belong to one of three taxa: Eryops, Archeria, and Diadectes. However, five histotypes are recognized. The first category includes the juvenile bone. The second histotype is characterized by the presence of radial vascular canals. The third histotype is characterized by the numerous longitudinal canals arranged in regular rows. In the fourth histotype, there is strong remodeling in the deep part of the cortex, creating a distinct border with the external layer of lamellar bone. In the fifth histotype, the deep part of the cortex is progressively remodeled towards osteoporosis with distinct layers of large circumferentially arranged erosion cavities. For femora and humeri, histotypes match morphology. Histotype II is characteristic for Diadectes propodials, histotype III is characteristic for Eryops propodials, and histotype IV is characteristic for Archeria propodials. A discrepancy between morphology and histology is observed in the ulnae, fibula and radius. This discrepancy may be explained by interspecific or intraspecific variability.

show abstract

Bone Microstructure of the Stereospondyl Lydekkerina Huxleyi Reveals Adaptive Strategies to the Harsh Post Permian‐Extinction Environment

Canoville

Chinsamy

2015

The Anatomical Record

View full text Add to dashboard Cite

The small-bodied stereospondyl Lydekkerina huxleyi, dominated the amphibian fauna of the South African Lower Triassic. Even though the anatomy of this amphibian has been well described, its growth strategies and lifestyle habits have remained controversial. Previous studies attributed the relative uniformity in skull sizes to a predominance of subadult and adult specimens recovered in the fossil record. Anatomical and taphonomic data suggested that the relatively small body-size of this genus, as compared to its Permo-Triassic relatives, could be linked to a shortened, rapid developmental period as an adaptation to maintain successful breeding populations under harsh environmental conditions. Moreover, Lydekkerina's habitat has been hypothesized to be either aquatic or mainly terrestrial. The current study, utilizes bone microstructure to reassess previous hypotheses pertaining to the biology and ecology of Lydekkerina. Various skeletal elements of different-sized specimens are analyzed to understand its growth dynamics, intraskeletal variability, and lifestyle adaptations. Bone histology revealed that our sample comprises individuals at different ontogenetic stages i.e., juveniles to mature individuals. Our results show that these amphibians, despite exhibiting plasticity in growth, experienced an overall faster growth during early ontogeny (thereby attaining sexual maturity sooner), as compared to most other temnospondyls. The microanatomy of the long bones with their thick bone walls and distinctive medullary cavity suggests that Lydekkerina may have been amphibious with a tendency to be more terrestrial. Our study concludes that Lydekkerina employed a peculiar growth strategy and lifestyle adaptations, which enabled it to endure the harsh, dry conditions of the Early Triassic. Anat Rec, 298:1237Rec, 298: -1254Rec, 298: , 2015. V C 2015 Wiley Periodicals, Inc.

show abstract

Long bone histology ofMetoposaurus diagnosticus(Temnospondyli) from the Late Triassic of Krasiejów (Poland) and its paleobiological implications

Cited by 47 publications

References 46 publications

Cranial bone histology ofMetoposaurus krasiejowensis(Amphibia, Temnospondyli) from the Late Triassic of Poland

Cranial bone histology ofMetoposaurus krasiejowensis(Amphibia, Temnospondyli) from the Late Triassic of Poland

The discrepancy between morphological and microanatomical patterns of anamniotic stegocephalian postcrania from the Early Permian Briar Creek Bonebed (Texas)

Bone Microstructure of the Stereospondyl Lydekkerina Huxleyi Reveals Adaptive Strategies to the Harsh Post Permian‐Extinction Environment

Contact Info

Product

Resources

About