森林中的小型马类
Early horse branches had low-crowned teeth and multiple toes, but later horse evolution forms a branching tree rather than a march toward one toe.
claim:taxon:perissodactyla:morphology马科从林地食叶者到草原奔跑者
马类演化是一场分支繁多的实验，并非走向单趾的阶梯。
每一步标明所依据的主张，引用列于下方。交互探索状态可在完整应用中打开；故事本身仍是编辑综合。
故事步骤
食叶策略延续
At Sandelzhausen, tridactyl and low-crowned Anchitherium aurelianense shows browse-dominated mixed feeding rather than a pure-browser stereotype.
claim:taxon:anchitherium开阔生境拓展演化实验
Hipparionins remained tridactyl while Old World lineages diversified from browse-dominated and mixed feeding to grazing across regions and time.
claim:taxon:hipparionini:ecology参考文献
- Evolutionary Transitions in the Fossil Record of Terrestrial Hoofed MammalsProthero, D.R. · 2009 · DOI 10.1007/s12052-009-0136-1
- Anchitherium aurelianense (Equidae, Mammalia): a brachydont “dirty browser” in the community of herbivorous large mammals from Sandelzhausen (Miocene, Germany)Kaiser, T.M. · 2009 · DOI 10.1007/s12542-009-0002-z
- Old world hipparion evolution, biogeography, climatology and ecologyBernor, R.L.; Kaya, F.; Kaakinen, A.; Saarinen, J.; Fortelius, M. · 2021 · DOI 10.1016/j.earscirev.2021.103784