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PeerJ Author & Reviewer

865 Points

Contributions by role

Contributions by subject area

By Q&A topic

William G Parker

PeerJ Author & Reviewer

Summary

I am a vertebrate paleontologist and biostratigrapher who primarily works in early Mesozoic rocks of the Colorado Plateau. I have B.S. and M.S. degrees in Geology from Northern Arizona University and a Ph.D. in Geology from the University of Texas at Austin. I have been the lead paleontologist at Petrified Forest National Park in Arizona since 2001.

Evolutionary Studies Paleontology Taxonomy

Past or current institution affiliations

University of Texas at Austin

Work details

Vertebrate Paleontologist

Petrified Forest National Park

Division of Resource Management

PeerJ Contributions

October 14, 2024

A small venomous reptile from the Late Triassic (Norian) of the southwestern United States

Helen E. Burch, Hannah-Marie S. Eddins, Michelle R. Stocker, Ben T. Kligman, Adam D. Marsh, William G. Parker, Sterling J. Nesbitt

https://doi.org/10.7717/peerj.18279 PubMed 39421413

August 28, 2018

Anatomical notes and discussion of the first described aetosaur Stagonolepis robertsoni (Archosauria: Suchia) from the Upper Triassic of Europe, and the use of plesiomorphies in aetosaur biochronology

William G. Parker

https://doi.org/10.7717/peerj.5455 PubMed 30186682

February 2, 2018

Redescription of Calyptosuchus (Stagonolepis) wellesi (Archosauria: Pseudosuchia: Aetosauria) from the Late Triassic of the Southwestern United States with a discussion of genera in vertebrate paleontology

William G. Parker

https://doi.org/10.7717/peerj.4291 PubMed 29416953

April 18, 2017

Microanatomy and paleohistology of the intercentra of North American metoposaurids from the Upper Triassic of Petrified Forest National Park (Arizona, USA) with implications for the taxonomy and ontogeny of the group

Bryan M. Gee, William G. Parker, Adam D. Marsh

https://doi.org/10.7717/peerj.3183 PubMed 28439462

August 30, 2016

Osteology of the Late Triassic aetosaur Scutarx deltatylus (Archosauria: Pseudosuchia)

William G. Parker

https://doi.org/10.7717/peerj.2411 PubMed 27635359

January 21, 2016

Revised phylogenetic analysis of the Aetosauria (Archosauria: Pseudosuchia); assessing the effects of incongruent morphological character sets

William G. Parker

https://doi.org/10.7717/peerj.1583 PubMed 26819845

April 3, 2016 - Version: 1

Osteology of the Late Triassic aetosaur Scutarx deltatylus (Archosauria: Pseudosuchia)

William G Parker

https://doi.org/10.7287/peerj.preprints.1924v1

Signed reviews submitted for articles published in PeerJ Note that some articles may not have the review itself made public unless authors have made them open as well.

December 10, 2018

A new phylogenetic analysis of Phytosauria (Archosauria: Pseudosuchia) with the application of continuous and geometric morphometric character coding

Andrew S. Jones, Richard J. Butler

https://doi.org/10.7717/peerj.5901 PubMed 30581656

October 2, 2018

Osteology of a forelimb of an aetosaur Stagonolepis olenkae (Archosauria: Pseudosuchia: Aetosauria) from the Krasiejów locality in Poland and its probable adaptations for a scratch-digging behavior

Dawid Dróżdż

https://doi.org/10.7717/peerj.5595 PubMed 30310738

February 14, 2018

The axial skeleton of Poposaurus langstoni (Pseudosuchia: Poposauroidea) and its implications for accessory intervertebral articulation evolution in pseudosuchian archosaurs

Candice M. Stefanic, Sterling J. Nesbitt

https://doi.org/10.7717/peerj.4235 PubMed 29472991

February 13, 2018

Under the armor: X-ray computed tomographic reconstruction of the internal skeleton of Coahomasuchus chathamensis (Archosauria: Aetosauria) from the Upper Triassic of North Carolina, USA, and a phylogenetic analysis of Aetosauria

Devin K. Hoffman, Andrew B. Heckert, Lindsay E. Zanno

https://doi.org/10.7717/peerj.4368 PubMed 29456892

Provided feedback on

12 Oct 2015

An unusual archosauriform tooth increases known tetrapod diversity in the lower Chinle Formation (Late Triassic) of southeastern Utah

This looks a lot like a phytosaur tooth. Can the authors further explain why it is not?

3 Questions

1

How does correcting the age of _Itopsidema_ affect this study?

about The fossil Osmundales (Royal Ferns)—a phylogenetic network analysis, revised taxonomy, and evolutionary classification of anatomically preserved trunks and rhizomes

0

Which characters are ordered in the main analysis?

about Revised phylogenetic analysis of the Aetosauria (Archosauria: Pseudosuchia); assessing the effects of incongruent morphological character sets

0

The taxon ranges are incorrect.

about Neural and endocranial anatomy of Triassic phytosaurian reptiles and convergence with fossil and modern crocodylians

5 Answers

1

accepted Why do palaeontologists rely exclusively on trees in the face of conflicting data?

1

accepted Gender and the ICZN

1

accepted Computational constraints?

1

accepted ICZN being unclear again

0

Which characters are ordered in the main analysis?