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Using Enclosed Y-Mazes to Assess Chemosensory Behavior in Reptiles

Using Enclosed Y-Mazes to Assess Chemosensory Behavior in Reptiles

Published on: April 7, 2021

Comment on "A southern tyrant reptile".

Matthew C Herne¹, Jay P Nair, Steven W Salisbury

¹School of Biological Sciences, University of Queensland, Brisbane, QLD 4072, Australia. m.herne@uq.edu.au

Science (New York, N.Y.)

|August 28, 2010

Summary

This summary is machine-generated.

A reassessment of an Australian fossil pubis initially identified as a tyrannosauroid reveals it lacks key diagnostic features. The specimen likely represents a different theropod group, challenging previous classifications.

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Area of Science:

Paleontology
Vertebrate Paleontology
Mesozoic Theropoda

Background:

A 2010 report identified an Early Cretaceous pubis from Victoria, Australia, as belonging to a tyrannosauroid dinosaur.
This identification was based on a specific anatomical character present in the fossil bone.

Discussion:

Re-examination of the fossil specimen by the current authors indicates the absence of the critical character cited in the original report.
This finding necessitates a re-evaluation of the specimen's taxonomic assignment.

Key Insights:

The Australian fossil pubis previously attributed to tyrannosauroids does not possess the diagnostic features for this group.
The specimen's true identity remains uncertain, but it likely belongs to a different, possibly endemic, theropod lineage.

Outlook:

Further analysis and discovery of more complete specimens are required to definitively identify this Australian theropod.
This study highlights the importance of rigorous examination in dinosaur taxonomy and biogeography.