Definition of Bartonian. Meaning of Bartonian. Synonyms of Bartonian

- The Bartonian is, in the International Commission on Stratigraphy's (ICS) geologic time scale, a stage or age in the middle of the Eocene Epoch or Series...
- dated to 42 mya. An unnamed fossil from Argentina proves that, by the Bartonian (Middle Eocene), some 39–38 mya, primitive penguins had spread to South...
- Lutetian is preceded by the Ypresian and is followed by the Bartonian. Together with the Bartonian it is sometimes referred to as the Middle Eocene Subepoch...
- Argorheomys is an extinct genus of pipestoneomyid rodent that lived during the Bartonian stage of the Eocene epoch. Argorheomys septendrionalis is known from Duchesnean...
- Mongolia, each dated to the Irdinmanhan Asian land mammal age (Lutetian–Bartonian stages, 48–38 million years ago). Andrewsarchus has historically been...
- Arenagale is an extinct genus of tenrecid that lived during the Bartonian stage of the Eocene epoch. Arenagale calcareus is known from the Eocliff Limestone...
- Sperrgale is an extinct genus of tenrecid that lived during the Bartonian stage of the Eocene epoch. Sperrgale minutus is known from the Eocliff Limestone...
- Namagale is an extinct genus of potamogalid that lived during the Bartonian stage of the Eocene epoch. Namagale grandis is known from the Eocliff Limestone...
- Rupestrohyrax is an extinct genus of titanohyracid that lived during the Bartonian stage of the Eocene epoch. Rupestohyrax palustris is known from the Eoridge...
- species of thresher shark, that lived in the Eocene and Pliocene, in Bartonian to Zanclean. There were at least two subspecies, A. latidens alabamensis...