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Metriorhynchid crocodylomorph fills 'Corallian Gap’



From: Ben Creisler
bcreisler@gmail.com


A new online paper:

Mark T. Young (2013)
Filling the ‘Corallian Gap’: re-description of a metriorhynchid
crocodylomorph from the Oxfordian (Late Jurassic) of Headington,
England.
Historical Biology (advance online publication)
DOI:10.1080/08912963.2012.760559
http://www.tandfonline.com/doi/full/10.1080/08912963.2012.760559



Re-description of a long-known, but little studied, metriorhynchid
crocodylomorph from the Oxfordian of England begins to help fill the
‘Corallian Gap’. This ‘Gap’ represents a paucity of vertebrate remains
from the Oxfordian of England. Filling the ‘Corallian Gap’ has
important implications for our understanding of metriorhynchids from
England, especially as there was a shift in this ecosystem from being
metriorhynchine dominated in the older Oxford Clay Formation, to a
geosaurine-dominated fauna in the younger Kimmeridge Clay Formation.
The re-description of the specimen reveals that it is a member of the
derived subclade Geosaurini, which most likely pertains to the genus
Torvoneustes.