Growth and life habits of the Triassic cynodont Trirachodon, inferred from bone histology

 

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dc.contributor.author Botha, Jennifer
dc.contributor.author Chinsamy, Anusuya
dc.date.accessioned 2018-04-03T08:24:46Z
dc.date.available 2018-04-03T08:24:46Z
dc.date.issued 2004
dc.identifier.citation Botha, J., & Chinsamy, A. (2004). Growth and life habits of the Triassic cynodont Trirachodon, inferred from bone histology. Acta Palaeontologica Polonica, 49(4), 619-627.
dc.identifier.uri http://hdl.handle.net/11427/27737
dc.description.abstract Growth pattern and lifestyle habits of the Triassic non−mammalian cynodont Trirachodon are deduced from bone histol−ogy and cross−sectional geometry. Several skeletal elements of Trirachodon were examined in order to document histological changes during ontogeny, as well as histovariability in the skeleton. The bone histology of all the elements consists of a moderately vascularized, periodically interrupted, fibro−lamellar bone tissue. This suggests that the overall growth of Trirachodon was probably rapid during the favourable season, but decreased or ceased during the unfavourable season. As the environment is thought to have been semi−arid with seasonal rainfall, it is possible that Trirachodon was sensitive to such environmental fluctuations. Some inter−elemental histovariability was noted where the number and prominence of growth rings varied. Limb bone cross−sectional geometry revealed a relatively thick bone wall and sup−ports earlier proposals that Trirachodon was fossorial.
dc.source Acta Palaeontologica Polonica
dc.source.uri http://app.pan.pl/home.html
dc.subject.other Cynodonts
dc.subject.other Trirachodon
dc.subject.other lifestyles
dc.subject.other bone histology
dc.subject.other growth patterns
dc.title Growth and life habits of the Triassic cynodont Trirachodon, inferred from bone histology
dc.type Journal Article
dc.date.updated 2016-01-20T08:51:40Z
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Science en_ZA
dc.publisher.department Department of Biological Sciences en_ZA
uct.type.filetype Text
uct.type.filetype Image


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