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Palaeocrangon problematicus
Taxonomy
Trilobites problematicus was named by Schlotheim (1820).
It was recombined as Palaeocrangon problematica by von Schauroth (1854); it was recombined as Prosoponiscus problematicus by Kirkby (1857), Geinitz (1861); it was recombined as Palaeocrangon problematicus by Glaessner (1957).
It was recombined as Palaeocrangon problematica by von Schauroth (1854); it was recombined as Prosoponiscus problematicus by Kirkby (1857), Geinitz (1861); it was recombined as Palaeocrangon problematicus by Glaessner (1957).