New Ice Age Toad Species Identified at La Brea Tar Pits

Scientists have identified a new extinct species of Ice Age spadefoot toad, named Spea labreae, from fossils found at the La Brea Tar Pits [1, 2].

The discovery provides researchers with new insights into prehistoric ecosystems in Southern California. By studying the remains, scientists can better understand how ancient climate shifts affected local amphibian populations [3, 2].

The fossils were recovered from the famous asphalt seeps in Los Angeles, California [2, 1]. Reports said the specimen had been stored in a museum drawer for nearly 100 years before it was identified as a distinct species ^[4].

Evidence suggests the toad lived more than one million years ago ^[3]. The identification process clarifies the taxonomic history of the region's fauna, specifically regarding the spadefoot toad lineage [1, 2].

While some reports refer to the animal as a frog, the formal identification classifies it as a toad [1, 2]. This distinction is critical for paleontologists mapping the biodiversity of the Pleistocene epoch. The presence of Spea labreae indicates a specific environmental niche that supported these amphibians during the Ice Age, a landscape significantly different from the modern urban sprawl of Los Angeles [3, 2].

The find highlights the ongoing value of museum archives. Because the fossil remained unclassified for decades, the discovery demonstrates that significant scientific breakthroughs can occur without new excavations, provided that existing collections are re-examined with modern techniques ^[4].