![Confirmation of Romer's Gap as a low oxygen interval constraining the timing of initial arthropod and vertebrate terrestrialization | PNAS Confirmation of Romer's Gap as a low oxygen interval constraining the timing of initial arthropod and vertebrate terrestrialization | PNAS](https://www.pnas.org/content/pnas/103/45/16818/F2.large.jpg)
Confirmation of Romer's Gap as a low oxygen interval constraining the timing of initial arthropod and vertebrate terrestrialization | PNAS
![Phylogeny of basal hexapod clades. Hexapoda gap in dark grey, Romer's... | Download Scientific Diagram Phylogeny of basal hexapod clades. Hexapoda gap in dark grey, Romer's... | Download Scientific Diagram](https://www.researchgate.net/profile/Philippe_Grandcolas/publication/230615765/figure/fig4/AS:267644922232878@1440822930734/Phylogeny-of-basal-hexapod-clades-Hexapoda-gap-in-dark-grey-Romers-gap-in-pale-grey.png)
Phylogeny of basal hexapod clades. Hexapoda gap in dark grey, Romer's... | Download Scientific Diagram
Summary of some major events of the Paleozoic evolutionary history of... | Download Scientific Diagram
![Reinterpreting, and erasing, Romer's Gap in tetrapod evolution – A new paleontology thing for curious kids – 2 New Things Reinterpreting, and erasing, Romer's Gap in tetrapod evolution – A new paleontology thing for curious kids – 2 New Things](https://2newthings.com/wp-content/uploads/2015/05/05-14-15-Acanthostega-meets-Tiktaalik.png)
Reinterpreting, and erasing, Romer's Gap in tetrapod evolution – A new paleontology thing for curious kids – 2 New Things
![PDF) Bridging "Romer's Gap": Limb Mechanics of an Extant Belly-Dragging Lizard Inform Debate on Tetrapod Locomotion During the Early Carboniferous PDF) Bridging "Romer's Gap": Limb Mechanics of an Extant Belly-Dragging Lizard Inform Debate on Tetrapod Locomotion During the Early Carboniferous](https://i1.rgstatic.net/publication/259569265_Bridging_Romer's_Gap_Limb_Mechanics_of_an_Extant_Belly-Dragging_Lizard_Inform_Debate_on_Tetrapod_Locomotion_During_the_Early_Carboniferous/links/02e7e52c95d36efc10000000/largepreview.png)