 Philosophers have largely focused on other topics in systematics than the pattern/process split. This is somewhat surprising as there are rich philosophical topics that could be fruitfully unpacked or drawn on as data by philosophers of science, especially for those interested in the nature of scientific explanation and inference, or the role of theory in biological methodology. For foundational literature on process versus pattern cladism see Beatty’s (1982) introduction of the designation of pattern cladism, with responses by Brady (1982), Patterson (1982), and Platnick (1982). Two good recent pattern cladist textbooks include Williams &amp; Ebach (2020) and Brower &amp; Schuh (2021). There is an expansive though well contained literature within cladistics featuring debates between pattern and process cladists, e.g., Carpenter (1987), Brower (2000, 2002, 2019), and Lee (2002) are just a very small selection of a large literature that philosophers interested in the justification of scientific inference and methology might explore.