Volcano an extinct volcano from a dormant (inactive) one. Dormant volcanoes are those that have not erupted for thousands of years, but are likely to erupt again in the future. Volcanoes are often considered to be extinct if there are no written records of its activity. Nevertheless, volcanoes may remain dormant for a long period of time. For example, Yellowstone has a repose/recharge period of around 700,000 years, and Toba of around 380,000 years. Vesuvius was described by Roman writers as having been covered with gardens and vineyards before its eruption of 79 CE, which destroyed the towns of Herculaneum and
Queanbeyan Nature Reserve likely to have become extinct since they were first recorded. Remnant populations are now usually restricted to roadsides, travelling stock reserves, cemeteries railway easements and the occasional private landholding. Within NSW, natural populations of Button wrinklewort are formally conserved within Queanbeyan Nature Reserve, Crace Grassland Reserve (part of the Canberra Nature Park) and the Red Hill Section of Canberra Nature Park. As a consequence, Button wrinklewort is listed as endangered under the "Threatened Species Conservation Act 1995" (NSW) and as endangered under the "Environment Protection and Biodiversity Conservation Act 1999" (Cth). The Golden Sun Moth "Synemon plana" is a medium-sized,