Kingiodendron and Enterolobium Eocene woods from the El Bosque formation, Chiapas, Mexico
Journal of South American Earth Sciences(2021)
摘要
Fabaceae are one of the most diverse flowering-plant groups today, and in Mexico their presence is well represented since the late Cretaceous. In this work are reported two fossil woods from the El Bosque Formation, early Eocene of Southern Mexico. These new records show close resemblance with the modern wood of Kingiodendron (Detarioideae) and Enterolobium (Caesalpinioideae). Detarioideae subfamily show a diversity much higher in tropical Africa than in South America or Asia, while the mimosoid clade diversity is pantropical. The relicts of both groups are known from the Paleocene onwards around the world. Comparing the fossil record and the fossils here studied, it is possible to confirm the presence of Fabaceae in Mexican territory since the Cretaceous and to suggest that the family was one of the most important components of the earliest forests in Mexico through the Cenozoic.
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关键词
Wood anatomy,Paleoflora,Fossils,Fabaceae,Paleobotany
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