SGER: Studies of Selected Cambrian and Precambrian Fossils

sellis L. Yochelson(EAR-0331863)PI计划一个由三部分组成的SGER研究项目。其中包括：(1)对Berkey 1898年泰勒瀑布软体动物动物群的重新研究；(2)球壳类软体动物的调查；(3)“霍罗迪奇”在元古代生命演化中的评价。子项目1和子项目2将完成目前正在进行的研究，第三子项目涉及在澳大利亚和蒙大拿州发现的一些元古代痕迹化石，这些化石可能为最早的高等真核生物提供有力的证据。如果正确的话，这将使已知最早的动物直接证据倒退700万年。

Studies of Selected Cambrian and Precambrian FossilsEllis L. Yochelson(EAR-0331863)PI plans a three-part SGER research project. These include a (1) restudy of Berkey's 1898 Taylor Falls Mollusca fauna; (2) Investigations of hyseloconid Mollusca; and (3) Evaluation of "Horodyskia" in the evolution of Proterozoic life. Subprojects 1 and 2 will complete research currently underway and the 3rd subproject relates to some Proterozoic trace fossils found in Australia and Montana that may provide strong evidence of the earliest higher eukaryotes. If correct this would set back by 700 m.y. the earliest known direct evidence of animals.