| Review of prey taken by anacondas (Squamata, Boidae: Eunectes) O Thomas, S Allain Reptiles & Amphibians 28 (2), 329-334, 2021 | 10 | 2021 |
| Effects of different heat sources on the behaviour of blue tree monitors (Varanus macraei) in captivity O Thomas, D Kane, CJ Michaels Herpetological Bulletin 149, 41-43, 2019 | 5 | 2019 |
| Persian horned viper (Pseudocerastes persicus): A record at unusually low elevation from the United Arab Emirates O Thomas Herpetol. Bull 147, 28-29, 2019 | 3 | 2019 |
| Observations on foraging behaviour of Rufous-headed Woodpecker Celeus spectabilis in the Ecuadorian Amazon G Mangini, O Thomas Cotinga, 73-76, 2020 | 2 | 2020 |
| Predation on a Slender Anole (Anolis fuscoauratus) by a Whip Scorpion (Order: Amblypygi) O Thomas Reptiles and Amphibians 26 (3), 253-254, 2020 | 2 | 2020 |
| Herps at height: Records of seven species utilizing the upper canopy in northwestern Ecuador O Thomas, S Preston, T Cole, RV McDonald, I Castellano, ... Reptiles & Amphibians 30 (1), e19692-e19692, 2023 | 1 | 2023 |
| The skynet, a new method to capture bats over water M Hughes, O Thomas, A Suvorova, T Saunders, M Krajnović, D Jelić, ... Barbastella 14 (1), 2022 | 1 | 2022 |
| Sleeping site fidelity in three neotropical species of herpetofauna O Thomas, GG Mangini, J Gualinga British Herpetological Society, 2021 | 1 | 2021 |
| Predation and ingestion of a barred grass snake Natrix helvetica by a rainbow trout Oncorhynchus mykiss in Lot, France O THOMAS, SJR ALLAIN, H OWEN Herpetological Bulletin 156, 40-41, 2021 | | 2021 |
| The Fish and Herpetofauna of the Sani Reserve, Ecuador. Second Edition O Thomas, D Bird | | 2020 |
| Aggregation behaviour in the common blunt-headed tree snake (Imantodes cenchoa) O Thomas Captive and Field Herpetology, 23-25, 2019 | | 2019 |
