A new comparative study of the two crania, LGPUT RZO-03 and LGPUT RZO-68 attributed to Palaeoreas zouavei Bouvrain, 1980 from the Late Miocene of Axios Valley, Greece reveals great morphological and metric differences between them, which require the exclusion of LGPUT RZO-68 from this species and even from Palaeoreas Gaudry, 1861. This decision leaves unsupported many diagnostic features of P. zouavei applied by previous authors and along with recent data from Bulgaria put in doubt the validity of P. zouavei as a whole. As a result, the genus Palaeoreas is re-defined as monotypic and the cranial morphometric changes of P. lindermayeri (Wagner, 1848) are discussed on a temporal basis. An updated taxonomic analysis confirms the presence of P. lindermayeri in the Late Turolian mammal assemblage of Dytiko-1 (Axios Valley, Greece) but rejects its occurrence at Dytiko-2. Instead, a re-examination of old cranial specimens and a study of new ones suggest the presence in both sites of Majoreas Kostopoulos, 2004 a Late Miocene taxon previously mostly known from the eastern banks of the Aegean Sea. A reassessment of the LGPUT RZO-68 cranium, and its comparison with Palaeoreas and Criotherium Forsyth-Major, 1891, suggests that it deserves taxonomic distinction at genus and species levels: Stryfnotherium exophthalmon.

来自希腊Axios谷晚中新世的1980年归因于Palaeoreas zouavei Bouvrain的这两种缝隙的新比较研究LGPUT RZO-03和LGPUT RZO-68揭示了两者之间的形态和量度差异很大，需要排除LGPUT RZO -68来自该物种，甚至来自Palaeoreas Gaudry，1861年。该决定不支持先前作者应用的P. zouavei的许多诊断特征，以及保加利亚的最新数据使人们怀疑P. zouavei的整体有效性。结果，古龟属被重新定义为单型性，而P. lindermayeri的颅骨形态变化（Wagner，1848）是在时间上进行讨论的。最新的分类学分析确认了Dytiko-1（希腊阿克西奥斯谷地）晚Turolian哺乳动物组合中存在P. lindermayeri，但拒绝了其在Dytiko-2中的发生。相反，对旧颅骨标本的重新检查和对新颅骨标本的研究表明，Majoreas Kostopoulos（2004年）的两个地点都存在着中新世晚期的分类群，以前主要从爱琴海东岸得知。对LGPUT RZO-68颅骨的重新评估，以及与Palaeoreas和Criotherium Forsyth-Major（1891年）的比较，表明它在属和种水平上应得到分类学上的区别：Stryfnotherium exophthalmon。