TURNER, S. & MURPHY, M.A. (1988)
Early devonian vertebrate microfossils from the Simpson Park Range, Eureka County, Nevada. Journal of Paleontology, 62 (6): 959–964
WILSON, M.V.H. & HANKE, G.F. & SOEHN, K.L. (2000)
Diversity and age of the Devonian vertebrate assemblage at MOTH, Mackenzie Mountains, Northwest Territories, Canada. Ichthyolith Issues, Special Publication, 6: 137–141
HANKE, G.F. & WILSON, M.V.H. & SAURETTE, G.J. (2013)
Partial articulated specimen of the Early Devonian putative chondrichthyan Polymerolepis whitei Karatajūtė-Talimaa, 1968, with an anal fin spine. Geodiversitas, 35 (3): 529–543
DOI: 10.5252/g2013n3a2
TURNER, S. & BURROW, C.J. & WILLIAMS, R.B. & TARRANT, P. (2017)
Welsh Borderland bouillabaisse: Lower Old Red Sandstone fish microfossils and their significance. Proceedings of the Geologists Association, 128 (3): 460-479
DOI: 10.1016/j.pgeola.2017.04.006
BURROW, C.J. & TURNER, S. (2018)
Stem chondrichthyan microfossils from the Lower Old Red Sandstone of the Welsh Borderland. Acta Geologica Polonica, 68 (3): 321–334
DOI: 10.1515/agp-2018-0010