• Title: Overtonaspis billballi White, 1961
  • Type status: Holotype
  • State province: England
  • Specific epithet: billballi
  • Scientific name authorship: White, 1961
  • Recorded by: H. W. Ball; The Natural History Museum, London; Department of Palaeontology; b.1926; Ball
  • Locality: Upper Overton Quarry; Upper Overton
  • Latest period or highest system: Devonian
  • Latest era or highest erathem: Paleozoic
  • Latest epoch or Highest series: Early Devonian
  • Latest eon or highest eonothem: Phanerozoic
  • Latest age or Highest age: Lochkovian
  • Higher geography: Europe; British Isles; England; Shropshire; Upper Overton Quarry, Upper Overton
  • Group: Old Red Sandstone Supergroup, Lower Old Red Sandstone
  • Genus: Overtonaspis
  • Formation: "Psammosteus" Limestone
  • Earliest period or lowest system: Devonian
  • Earliest era or lowest erathem: Paleozoic
  • Earliest epoch or lowest series: Early Devonian
  • Earliest eon or Lowest eonothem: Phanerozoic
  • Earliest age or Lowestst age: Lochkovian
  • Country: British Isles
  • Continent: Europe
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