Mezue ahịrịokwu na-esonụ: John W. Dawson laghachiri na Joggins n'oge okpomọkụ nke 1853 na-enweghị Charles Lyell, bụ onye a goro ọrụ ịrụ ọrụ maka
Ihe ngosi ụwa nke 1853 na New York City. Dawson gara n'ihu na-enyocha Joggins Formation naanị ya, na 2 Nọvemba 1853 zigara Lyell nyocha ya zuru ezu. Dawson kwuru na ihe ya na Lyell chọpụtara kwekọrọ n'ihe William Logan chọpụtara, ka ọ na-erule 1855 Dawson kwụsịrị iji nnyocha e mere n'onwe ya eme ihe ma malite ịdabere nanị n'ihe Logan chọpụtara. N'ime nyocha nke 2005 nke nyocha ha, e kpebiri na ọrụ Dawson na Lyell ziri ezi karịa nke Logan. "Hylonomus lyelli" bụ nke Dawson chọpụtara na Joggins Cliffs ma kọwaa ya n'ụzọ iwu kwadoro na 1859. A kpọrọ ụdị anụ ahụ aha onye ya na ya na-arụkọ ọrụ, bụ́ Charles Lyell, e mesịa, a mata ya dị ka anụ na-akpụ akpụ kasị ochie a maara ma mee ka ọ bụrụ ihe ochie nke ógbè Nova Scotia. A na-ekwere na ọ bụ nnukwu anụ na-enweghị azụ azụ a maara "Arthropleura" mepụtara ụzọ fosil nke Dawson chọpụtara na 1866, mana Dawson mechara chọpụta ụzọ ahụ dị iche iche iji kenye ya ụdị nke ya: "Diplichnites aenigma". Dawson ga-etinye ọtụtụ n'ime ọrụ ya n'ịmụ Njikọ Joggins wee laghachi ọzọ na 1877, na-eme njem njem nke Royal Society kwadoro iji chọọ ihe atụ ndị ọzọ agbakwunyere n'osisi ihe mgbe ochie. A gbawara ihe mgbawa na Coal Mine Point, na-ekpughe osisi lycopsid iri abụọ na ise; n'ime ndị a, iri na ise nwere vertebrate fossils na-anọchite anya ihe karịrị otu narị ụdị, nchịkọta kasị ukwuu nke tetrapods Palaeozoic achọtara. Dawson na Lyell ga-echepụta ọtụtụ echiche ka afọ na-aga iji kọwaa ihe mere ọtụtụ ụmụ anụmanụ ga-eji gbakọta n'ebe ahụ. Nkwupụta mbụ e mere bụ na ihe ndị ahụ e kere eke nọ na-egwupụta ihe, ma e kwukwara na ha nwụrụ n'ebe ọzọ ma bụrụ ndị mmiri kpofuru n'ime nkata ahụ. N'ikpeazụ, Dawson bịara kwere na ụmụ anụmanụ ahụ adabawo n'ime igbe ahụ ma nwụọ n'ebe ahụ, n'enweghị ike ịgbanahụ.