Final answer:
The Oldowan Complex is associated with the Lower Paleolithic period, being part of the first known stone tool industry and predating Middle and Upper Paleolithic as well as Solutrean tool industries.
Step-by-step explanation:
The Oldowan Complex is part of the Lower Paleolithic era. The Lower Paleolithic period marks the advent of the first known stone tool industry, which included not only Oldowan tools but also later the Acheulean hand-axes. Oldowan tools, such as the mentioned chopper made of quartzite, date back to around 2.5 to 1.5 million years ago (MYA) and are considered quite primitive compared to the tools from subsequent periods. They were likely used by early hominins like H. habilis and possibly Paranthropus boisei. The Upper Paleolithic, Middle Paleolithic, and Solutrean tool industries belong to later parts of the Paleolithic era, with the Upper Paleolithic being the most recent and the Solutrean being one of the distinctive blade tool industries within it. The Solutrean industry was associated with more advanced stone craftsmanship and techniques, such as long-distance transport of select rocks for toolmaking.