A new study published in the journal Current Biology describes the discovery of a fossilized tree, Sanfordiacaulis densifolia, which sheds light on the mysterious Romer's gap in the tetrapod fossil record. The tree, resembling something out of a Dr. Seuss book, had a unique structure with a trunk made of vascular plant material and a comically top-heavy crown. This finding provides valuable insights into the plant life during the 15-million-year gap in Earth's prehistory. The tree was unearthed in Canada's Stonehammer UNESCO Global Geopark and represents the only known fossil of its kind with both trunk and crown preserved.