Abstract Fine-grained siltstones of the Late Triassic Passaic Formation, near Milford, New Jersey, has yielded the first evidence of the trace fossil Protovirgularia in the Newark Supergroup of New Jersey. Associated trace fossils include Helminthoidichnites, Lockeia, Scoyenia, Spongeliomorpha, and the reptile footprint Rhynchosauroides, representing the Scoyenia ichnofacies. Associated sedimentary structures include desiccation cracks, raindrop impressions, tool marks, and cross-bedding. The Passaic sediments were deposited under shallow water lacustrine shoreline conditions subject to periodic subaerial exposure.

中文翻译：

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新泽西州米尔福德附近纽瓦克超群的 Passaic 组（晚三叠世）中的痕迹化石 Protovirgularia 的首次记录

摘要 新泽西州米尔福德附近的晚三叠世 Passaic 地层的细粒粉砂岩提供了新泽西州纽瓦克超群中原始维古拉氏菌踪迹化石的第一个证据。相关的踪迹化石包括蠕虫、Lockeia、Scoyenia、Spongeliomorpha 和代表 Scoyenia ichnfacies 的爬行动物足迹 Rhynchosauroides。相关的沉积结构包括干燥裂缝、雨滴印记、工具痕迹和交错层理。Passaic 沉积物沉积在浅水湖岸线条件下，受到定期的地下暴露。