Mysterious gap in the four-legged fossil record might not be a gap at all - CSMonitor.com
Review | Gramophone
Scotland holds the key to understanding how life first walked on land | Science | The Guardian
The Carboniferous Period The first 15 million years of the Carboniferous has a lack of terrestrial fossils called Romers Gap. There was a drop in oxygen signaling a ecological collapse. - iFunny :)
Romers Gap Online Pdf | Barbie B Book Online
Phylogeny of basal hexapod clades. Hexapoda gap in dark grey, Romer's... | Download Scientific Diagram
Figure 2 from Confirmation of Romer's Gap as a low oxygen interval constraining the timing of initial arthropod and vertebrate terrestrialization | Semantic Scholar
Fossil finds help fill in Romer's Gap
Time-calibrated trees showing Romer's and Carroll's Gaps. Names of... | Download Scientific Diagram