Knowledge about fresh water bodies biology in the State of Tlaxcala, Mexico, has become of relevant importance in order to diagnosticate possibilities about natural aquatic renewable resources management for an optimum exploitation. For first ocassion, Apizaquito Reservoir in the State,…

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Through the use of line transects on boats, contributions to the knowledge of vaquita Phocoena sinus distribution were made. Sightings made confirm the presence of vaquita near Rocas Consag. Stranded individuals were collected for anatomical, morphometric, and age estimation studies.…

Mimosoideae), Mimosa (Mimoseae, Mimosoideae), Lysiloma (Ingeae, Mimosoideae),and Sophora (Sophoreae, Papilionoideae). Another fruit exhibits a combination of characters unknown among extant legumes, and although superficially similar to some species of Papilionoideae, it represents an extinct genus. The four identified genera are…

The Upper Cenozoic flora of the Pie de Vaca Formation, Puebla, Mexico, is yielding important elements that contribute to a more complete knowledge of the Tertiary floras of southern latitudes of North America. Among the most abundant plant organs in…