Iterations on the matrices originally built by Upchurch et al. (2007) and Yates (2007) and the addition of characters and operational taxonomic units (OTUs) as described in the text. Numbers on the left correspond to the iteration number. Abbreviations: The labels are abbreviations of the matrices compiled for this work (from stage 0 to stage 9): stage 1 [Y2007b – Yates (2007b); U2007 – Upchurch et al. (2007)], stage 2 [M2009 – Martínez and Alcober (2009), Y2010 – Yates et al. (2010), Y2010’ – Yates et al. (2010) second analysis, SP2007 – Smith and Pol (2007)], stage 3 [A2013 – Apaldetti et al. (2013), A2013’ – Apaldetti et al. (2013) second analysis; SL2010 – Sertich and Loewen (2010), SL2010’ – Sertich and Loewen (2010) second analysis, K2010 – Knoll (2010), A2011 – Apaldetti et al. (2011), E2010 – Ezcurra (2010), O2013 – Otero and Pol (2013), Ch2018 – Chapelle and Choiniere (2018)], stage 4 [A2014 – Apaldetti et al. 2014, R2011 – Rowe et al. (2011), R2011’ – Rowe et al. (2011), second analysis, MP2014 – McPhee et al. (2014), M2012 – Martinez et al. (2012), C2011 – Cabreira et al. (2011), N2011 – Novas et al. (2011), Ch2019 – Chapelle et al. (2019)], stage 5 [S2013 – Sekiya et al. (2013), O2015 – Otero et al. (2015), MP2015b – McPhee et al. (2015b), PF2016 – Peyre de Fabrègues and Allain (2016)], stage 6 [C2017 – Cerda et al. 2017, MP2015a – McPhee et al. (2015a)], stage 7 [A2018 – Apaldetti et al. (2018), W2017 – Wang et al. (2017), B2017 – Bronzati and Rauhut (2017)], stage 8 [M2018 – Müller et al. (2018b), Z2019 – Zhang et al. (2019), McPhee et al. (2017)], stage 9 [MP2018 – McPhee et al. (2018), RF2022 – Regalado-Fernandez and Werneburg 2022].