| 词条 | Agnotocastor |
| 释义 |
|fossil_range = Late Eocene to Late Oligocene |taxon = Agnotocastor |authority = Stirton, 1935 |type_species = †Agnotocastor praetereadens |subdivision_ranks = Species |subdivision =
}} Agnotocastor is an extinct member of the beaver family Castoridae. Unlike its modern relative, this species took the place of muskrats in the rivers of North America during the Oligocene epoch. References{{Taxonbar|from=Q4693299}}{{paleo-rodent-stub}} 8 : Prehistoric beavers|Eocene rodents|Oligocene rodents|Prehistoric rodent genera|Eocene mammals of Asia|Oligocene mammals of Asia|Eocene mammals of North America|Oligocene mammals of North America |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。