形似河马的犀形类
Metamynodon planifrons combines high-set orbits, reduced thoracic spines and limb-lever proportions that differ from more terrestrial amynodontids.
claim:taxon:metamynodon:morphology半水生哺乳动物的多次独立演化
两栖犀展示了体型、眼位和沉积背景如何提示行为，却不能单独证明行为。
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
沉积环境补充背景
Its association with Orellan channel sandstones adds context to the semi-aquatic interpretation, while anatomy and deposits still do not directly observe behavior.
claim:taxon:metamynodon趋同并非亲缘
Metamynodon and Teleoceras each generated semi-aquatic hypotheses, but Teleoceras isotope evidence differs between Florida and Ashfall; resemblance is neither uniform ecology nor ancestry.
claim:taxon:metamynodon · claim:taxon:teleoceras参考文献
- Locomotor adaptations in Metamynodon planifrons compared to other amynodontids (Perissodactyla, Rhinocerotoidea)Wall, W.P.; Heinbaugh, K.L. · 1999
- Tale of two rhinos: isotopic ecology, paleodiet, and niche differentiation of Aphelops and Teleoceras from the Florida NeogeneMacFadden, B.J. · 1998 · DOI 10.1666/0094-8373(1998)024[0274:TOTRIE]2.3.CO;2
- Enamel carbon, oxygen, and strontium isotopes reveal limited mobility in Teleoceras major at Ashfall Fossil Beds, Nebraska, USAWard, C.T.; Crowley, B.E.; Secord, R. · 2025 · DOI 10.1038/s41598-025-94263-z