Bibliography and Index of the Sirenia and Desmostylia 
Bibliography Record
| x | Ferrusquia-Villafranca, Ismael | ||
| 1990 | Biostratigraphy of the Mexican continental Miocene: Part I, introduction and the northwestern and central faunas. Paleontologia Mexicana No. 56: 7-53. 7 tabs. 10 figs. 2 pls. –Spanish summ. Describes a tooth fragment of Desmostylus hesperus from La Purísima (22-26), and mentions Desmostylus sp. at La Misión (15, 17), Baja California. The La Purísima occurrence is the southernmost known for Desmostylus. | ||
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