New morphological information on the ptyctodontid fishes (Placodermi, Ptyctodontida) from Western Australia

Placoderms (Armored Fish): Dominant Vertebrates of the Devonian Period

(2010) Gavin C. Young   Annual Review of Earth and Planetary Sciences

New arthrodires (Family Williamsaspididae) from Wee Jasper, New South Wales (Early Devonian), with comments on placoderm morphology and palaeoecology

(2009) Gavin C. Young   ACTA ZOOLOGICA

Multiphasic and tissue-specific roles of sonic hedgehog in cloacal septation and external genitalia development

(2009) A. W. Seifert et al.   DEVELOPMENT

A new genus and species of Ptyctodont (Placodermi) from the Late Devonian Gneudna Formation, Western Australia, and an analysis of Ptyctodont phylogeny

(2009) KATE TRINAJSTIC et al.   GEOLOGICAL MAGAZINE

The phyllolepid placodermCowralepis mclachlani: Insights into the evolution of feeding mechanisms in jawed vertebrates

(2009) Robert K. Carr et al.   JOURNAL OF MORPHOLOGY

The braincase and jaws of a Devonian ‘acanthodian’ and modern gnathostome origins

(2009) Martin D. Brazeau   NATURE

Devonian arthrodire embryos and the origin of internal fertilization in vertebrates

(2009) John A. Long et al.   NATURE

Heterochronic Shift in Hox-Mediated Activation of Sonic hedgehog Leads to Morphological Changes during Fin Development

(2009) Koji Sakamoto et al.   PLoS One

The relationships of antiarchs (Devonian placoderm fishes)—evidence supporting placoderm monophyly

(2008) Gavin C. Young   JOURNAL OF VERTEBRATE PALEONTOLOGY

Live birth in the Devonian period

(2008) John A. Long et al.   NATURE

Number and arrangement of extraocular muscles in primitive gnathostomes: evidence from extinct placoderm fishes

(2007) G. C Young   Biology Letters