Abstract
Different types of flowering plants and conifers have been collected in the Olmos Formation, Upper Cretaceous (upper Campanian-lower Maastrichtian). A stem represents a new species of Palmoxylon Schenk (Arecaceae), P. enochii sp. nov. The stem portion known of this new plant has vascular bundles organized in radial strands; each vascular bundle has 2 or 3 metaxylem and 3 to 9 protoxylem vessel elements. The ground tissue consists of thin-walled cells forming a not compact tissue with intercellular spaces, rarely described in Upper Cretaceous palms. The diversity of palm trees of the Olmos Formation flora further supports the presence of a diverse paleovegetation that later contributed with important elements to the humid and dry tropics during Cenozoic time in southern North America and northern and central Mexico.
Translated title of the contribution | Palmoxylon enochii sp. nov. from the olmos formation (Upper Campanian-Lower Maastrichtian), Coahuila, Mexico |
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Original language | Spanish |
Pages (from-to) | 577-585 |
Number of pages | 9 |
Journal | Ameghiniana |
Volume | 46 |
Issue number | 4 |
State | Published - Nov 2009 |
Externally published | Yes |