[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Late Jurassic sauropod bone-bed from Montana re-analysed



From: Ben Creisler
bcreisler@gmail.com

A new online paper:

Glenn W. Storrs, Sara E. Oser and Mark Aulla (2013)
Further analysis of a Late Jurassic dinosaur bone-bed from the
Morrison Formation of Montana, USA, with a computed three-dimensional
reconstruction.
DOI: http://dx.doi.org/10.1017/S1755691013000248
http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9015859&fulltextType=RA&fileId=S1755691013000248



A Late Jurassic sauropod bone-bed comprising thousands of individual
skeletal elements in the Morrison Formation of Montana, USA, is
re-analysed to further elucidate its taphonomic history. New data
gained from detailed contextual sampling is assembled and presented to
test the hypothesis of a drought-induced, mass-mortality assemblage,
and its subsequent depositional emplacement by a debris flow. Large
dinosaur bone-beds are well-known in the Morrison, yet the Mother's
Day Quarry site is unique for the formation in depicting an apparent
debris flow deposit. Use of a computer program tailored to the data
allows three-dimensional reconstruction of the bone-bed and recreates
the palaeoslope of the deposit, adding support to the debris flow
hypothesis. Such digital manipulation of field data may allow a deeper
understanding of other bone-bed origination events.