Recent paleontological developments include the classification of a new marine reptile species in Texas and the excavation of a rare ceratopsian in Colorado.

近期古生物學的進展包括在德州對一種新海洋爬行動物物種的分類，以及在科羅拉多州挖掘到一隻稀有的角龍類動物。

The identification of Tylosaurus rex, a mosasaur reaching approximately 43 feet, resulted from the re-evaluation of fossils located in northern Texas. This species is distinguished from other tylosaurs by the presence of finely serrated teeth and a chronological divergence of four million years from Tylosaurus proriger. Morphological analysis indicates an exceptional development of neck and jaw musculature. Furthermore, the presence of severe cranial trauma in the 'Black Knight' specimen suggests a high frequency of intraspecific aggression, likely pertaining to territorial or reproductive competition. The research team, including Ron Tykoski and Amelia Zietlow, posits that these findings necessitate a systemic revision of the mosasaur evolutionary framework, as previous taxonomies relied upon static datasets.

對 Tylosaurus rex（一種長約 43 英尺的滄龍）的鑑定，源於對德州北部發現的化石進行重新評估。此物種與其他 tylosaurs 的區分之處在於其具有精細的鋸齒狀牙齒，且在時間線上與 Tylosaurus proriger 相差四百萬年。形態分析顯示，其頸部與下顎肌肉發育極其發達。此外，「黑騎士」標本中嚴重的頭骨創傷顯示同種內攻擊行為頻率很高，可能與領地或繁殖競爭有關。包括 Ron Tykoski 與 Amelia Zietlow 在內的研究團隊認為，由於之前的分類學依賴於靜態數據集，因此這些發現使得滄龍的演化框架有必要進行系統性修訂。

Parallel to these marine findings, a terrestrial excavation in Thornton, Colorado, yielded a significant specimen of Torosaurus. Initially misidentified as Triceratops, the specimen was differentiated by the distinct fenestrations within its frill structure. The recovery of 80% of the skull and 15% of the postcranial skeleton provides a high-fidelity biological record of the Cretaceous floodplain within the Denver Basin. This discovery underscores the utility of opportunistic paleontological recovery during urban infrastructure development.

與這些海洋發現平行地，在科羅拉多州 Thornton 的陸地挖掘中，發現了一個重要的 Torosaurus 標本。該標本最初被誤認為是 Triceratops，但隨後透過其頸飾結構中明顯的窗孔（fenestrations）將其區分。回收了 80% 的頭骨與 15% 的後顱骨骼，為丹佛盆地白堊紀氾濫原提供了高保真的生物紀錄。這次發現凸顯了在城市基礎設施開發期間，採取機會性古生物回收的實用性。

These findings contribute to a more precise understanding of Late Cretaceous biodiversity and the evolutionary trajectories of both marine and terrestrial megafauna.

這些發現有助於更精確地理解白堊紀晚期的生物多樣性，以及海洋與陸地大型動物的演化軌跡。