Polychelidan lobsters are unique decapod crustaceans characterized by having four or five pairs of claws. We still do not have a clear overview of the 69 described species of fossil polychelidans and,
Extant amniotes show remarkable postural diversity. Broadly speaking, limbs with erect (strongly adducted, more vertically oriented) posture are found in mammals that are particularly heavy (gravipo
本数据集记录了侏罗纪至现代316种锥螺科腹足类的壳长数据，分析其体型演化模式与过程。包含体型与纬度的相关性、演化模式（随机游走或停滞）等研究结果，涉及标本数据、统计模型结果及可视化图表，共28个文件，支持生物演化领域的宏观分析。 San Jose State University（Carlie Pietsch团队）
The taxonomic histories of Pterodactylus antiquus and other pterodactyloids from the Upper Jurassic plattenkalks of southern Germany are long and complex, reflecting centuries of intricate and
