Diet and habitat of mesomammals and megamammals from Cedral, San Luis Potosi, Mexico

作者：Adrian Perez Crespo Victor; Arroyo Cabrales Joaquin; Morales Puente Pedro; Cienfuegos Alvarado Edith; Otero Francisco J

来源：Geological Magazine, 2018, 155(3): 674-684.

DOI：10.1017/S0016756816000935

• Cedral
• stable isotopes
• herbivores
• carnivores
• diet
• habitat

Using carbon and oxygen isotopic relationships from dental enamel, diet and habitat were inferred for both mesomammals and megamammals that lived in Cedral (San Luis Potosi, north-central Mexico) during Late Pleistocene time. delta C-13 and delta O-18 values show that bison, some horses and mammoth were eating C-4 plants and lived in open areas, while tapir, camel and some llamas ate C-3 plants and inhabited closed areas. All other studied herbivores (pronghorn, glyptodont, mylodont ground sloth, javelina, mastodon, and other llamas, horses and mammoth) had a C-3/C-4 mixed diet, living in areas with some percentage of tree coverage. On the other hand, American lion and dire wolf ate either C-4 or mixed-diet herbivores, and short-faced bear ate C-3 herbivores. At Cedral, more humid conditions existed than presently, allowing the presence of a forested area near the grassland.

• 出版日期2018-3