The tools and classifications are well described in a number of pages at KOOBI FORA ARCHAEOLOGY, which is being maintained at the Maricopa Community Colleges site.
Technological Developments in the Oldowan of Koobi Fora: Innovative Techniques of Artifact Analysis,2001, David R. Braun, Jack W.K. Harris, in TREBALLS D'ARQUEOLOGIA, 9, Centre d'Estudis del Patrimoni Arqueològic
de la Prehistòria, Autonomous University of Barcelona. The summary below is based on it and the quoted phrases come from it.
Much of the literature on the subject since 1991 refers to some pseudo-taxa created by Wood: Homo sp. indet. is "Homo, species indeterminate"; Homo gen. et spec. indet. is "Homo, genus and species indeterminate"; Homo aff. H. erectus is "Homo with affinities to Homo erectus"; H. erectus sensu stricto is "Homo erectus in the strict sense." The subject has moved on since Wood; for example, "Hominids" are now "Hominins." For a review of the book in some detail, see the Book ReviewsArchived 24 June 2006 at the Wayback Machine section of the American Journal of Physical Anthropology S9:499–504 (1992).
Much of the literature on the subject since 1991 refers to some pseudo-taxa created by Wood: Homo sp. indet. is "Homo, species indeterminate"; Homo gen. et spec. indet. is "Homo, genus and species indeterminate"; Homo aff. H. erectus is "Homo with affinities to Homo erectus"; H. erectus sensu stricto is "Homo erectus in the strict sense." The subject has moved on since Wood; for example, "Hominids" are now "Hominins." For a review of the book in some detail, see the Book ReviewsArchived 24 June 2006 at the Wayback Machine section of the American Journal of Physical Anthropology S9:499–504 (1992).