[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Little Cretaceous Scavengers in Argentina
From: Ben Creisler
Because of continuing issues with garbled text from the Yahoo-DML bug, I am
trying to switch my DML address to Gmail to see if that solves the problem per
advice from DML members. I tried to make the switch last week but it apparently
has not been processed by Mary. For now, here's a new article in PLoS ONE. I
hope the text here doesn't get too chopped up.....
Silvina de Valais, Sebastián Apesteguía & Alberto C. Garrido (2012)
Cretaceous Small Scavengers: Feeding Traces in Tetrapod Bones from Patagonia,
PLoS ONE 7(1): e29841.
Ecological relationships among fossil vertebrate groups are interpreted based
on evidence of modification features and paleopathologies on fossil bones. Here
we describe an ichnological assemblage composed of trace fossils on reptile
bones, mainly sphenodontids, crocodyliforms and maniraptoran theropods. They
all come from La Buitrera, an early Late Cretaceous locality in the Candeleros
Formation of northwestern Patagonia, Argentina. This locality is significant
because of the abundance of small to medium-sized vertebrates. The abundant
ichnological record includes traces on bones, most of them attributable to
tetrapods. These latter traces include tooth marks that provde evidence of
feeding activities made during the sub-aerial exposure of tetrapod carcasses.
Other traces are attributable to arthropods or roots. The totality of evidence
provides an uncommon insight into paleoecological aspects of a Late Cretaceous