http://book.klll.cc/ebooks/subject/10656.opds 2025-11-18T06:46:59Z Books about Paleontology -- Permian Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-18T06:46:59Z https://book.klll.cc/ebooks/30620.opds Two New Pelycosaurs from the Lower Permian of Oklahoma Richard C. Fox