Authors: Harris, JD Lucas, SG Estep, JW Li, JJ

Citation: Jd. Harris et al., A new and unusual sphenosuchian (Archosauria : Crocodylomorpha) from the Lower Jurassic Lufeng Formation, People's Republic of China, N J GEO P-A, 215(1), 2000, pp. 47-68

Authors: Lucas, SG Morgan, GS Estep, JW Mack, GH Hawley, JW

Citation: Sg. Lucas et al., Co-occurrence of the proboscideans Cuvieronius, Stegomastodon, and Mammuthus in the Lower Pleistocene of southern New Mexico, J VERTEBR P, 19(3), 1999, pp. 595-597

Authors: Lucas, SG Estep, JW Heckert, AB Hunt, AP

Citation: Sg. Lucas et al., Cynodont teeth from the Upper Triassic of New Mexico, USA, N J GEO P-M, (6), 1999, pp. 331-344

Authors: Lucas, SG Estep, JW Molina-Garza, RS

Citation: Sg. Lucas et al., Early Jurassic stratigraphy and ammonites at Cerro Pozos de Serna, Sonora,Mexico, and their tectonic significance, N J GEO P-M, (6), 1999, pp. 357-371