John Ahlgren

Agnostids from the Upper Cambrian of Västergötland, Sweden

Per Ahlberg, John Ahlgren · GFF · 1996 · 52 citations

Natural Sciences, Marine Biology, Marine Sciences +6

Structure, ontogeny, and moulting of the olenid trilobite <i>Ctenopyge</i> (<i>Eoctenopyge</i>) <i>angusta</i> Westergård, 1922 from the upper Cambrian of Västergötland, Sweden

Euan N. K. Clarkson, John Ahlgren, Cecilia M. Taylor · Palaeontology · 2003 · 33 citations

Life Sciences, Biology, Zoology +13

Moulting, ontogeny and sexual dimorphism in the Cambrian ptychopariid trilobite <i>Strenuaeva inflata</i> from the northern Swedish Caledonides

Peter Cederström, Per Ahlberg, Carin Nilsson et al. · Palaeontology · 2010 · 32 citations · Full text

Life Sciences, Biology, Zoology +12

Ontogeny, structure and functional morphology of some spiny <i>Ctenopyge</i> species (Trilobita) from the upper Cambrian of Västergötland, Sweden

Euan N. K. Clarkson, John Ahlgren, Cecilia M. Taylor · Transactions of the Royal Society of Edinburgh Earth Sciences · 2003 · 19 citations

Life Sciences, Biology, Zoology +13

Morphology, ontogeny and distribution of the Cambrian Series 2 ellipsocephalid trilobite<i>Strenuaeva spinosa</i>from Scandinavia

Peter Cederström, Per Ahlberg, Loren E. Babcock et al. · GFF · 2012 · 16 citations

Life Sciences, Anatomy, Axis Formation +12