Fossil of Country’s Oldest Land Mammal Unearthed
Costa Rican geologists this year unearthed the tooth of a Desmostylus hesperus, an extinct, large, amphibious animal related to elephants and manatees.
The fossilized tooth, found during an excavation in January in the country’s southwest coastal region, set a new record for the oldest land mammal found in Costa Rica. It is estimated to be between five and seven million years old.
The find became the first evidence that these animals lived in tropical regions, because all other fossils have been found in Japan, Siberia, Mexico’s Baja California and the U.S. states of Oregon and California.
The tooth found in Costa Rica is believed to belong to an infant D. hesperus. The colossal herbivores measured 1.8 meters long and 1.5 meters tall when full grown.
You may be interested
Slothy Sunday: Onward and upwardDuncan Coleman - February 23, 2020
January 26, 11:20 a.m. was the last time I saw Pebbles. Pebbles, the tamandua anteater I had been observing and…
Pic of the Day: Hot chocolate with a garden viewThe Tico Times - February 22, 2020
Minutes outside of San José toward Cerro Zurquí, Sibú Chocolate serves some of the finest Costa Rican delicacies around. Their…
After public criticism, Costa Rican gov. repeals decree that created department with access to ‘confidential’ informationThe Tico Times - February 21, 2020
The Costa Rican government repealed a decree that had created a Data Analysis Unit, after public criticism questioned its purpose…