Keywords: ThalassinoidesIsrael.JPG Thalassinoides burrows produced by crustaceans; the Middle Jurassic Makhtesh Qatan southern Israel en-wiki Mark A Wilson Department of Geology The College of Wooster http //www3 wooster edu/geology/MWilson html Wilson44691 Trace fossils Ecology Negev Jurassic fossils from Israel Thalassinoides |