Heintzichthys gouldii is redescribed based on new material from the Interstate 71
Paleontological Salvage Project (Cleveland Museum of Natural History, 1966-67) …

Aspects of placoderm morphology are considered in the light of current competing
hypotheses of placoderm relationship. It is suggested that the macromeric dermal skeleton …

Two pachyosteomorph arthrodires are described from the Upper Devonian of North
America, Dunkleosteus raveri sp. nov. and Dunkleosteus amblyodoratus sp. nov.(from the …

A new species of Dunkleosteus, D. tuderensis sp. nov., is named based on an infragnathal
from the Famennian of the Tver Region, Russia. CT scanning of the holotype revealed two …

Dunkleosteus is a widely-recognized prehistoric organism, yet its life appearance,
paleobiology, and even basic morphology remain poorly understood. A new reconstruction …

Various palaeogeographic ideas about the relation between Gondwana and Euramerica
during the Devonian Period are formalised into four competing hypotheses involving three …

Arthodire placoderms have been proposed as the sister group of Chinese
'maxillate'placoderms plus all the more crownward gnathostomes. These basal groups …

Yinosteus major is a heterostiid arthrodire (Placodermi) from the Lower Devonian Jiucheng
Formation of Yunnan Province, south-western China. A detailed redescription of this taxon …

Intraspecies variation, polymorphism and asymmetric traits are observed within two families
of Arthrodira, the Incisoscutidae and Camuropiscidae, from the Gogo Formation in northern …

A preliminary description of a new placoderm assemblage from the upper Frasnian of
Morocco shows close similarity to the Bad Wildungen locality in Germany, with the arthrodire …