“…List of calcareous nannofossil taxa encountered in the Petrich section, Bulgaria (according to Nannotax3: https://www.mikrotax.org/Nannotax3/) Ahmuellerella octoradiata (Górka) Reinhardt, 1966 Arkhangelskiella cymbiformis Vekshina, 1959 Biscutum constans (Górka) Black in Black and Barnes, 1959 Biscutum cf. melaniae (Górka) Reinhardt, 1969 Braarudosphaera bigelowii (Gran and Braarud) Deflandre, 1947 Broinsonia enormis (Shumenko) Manivit, 1971 Broinsonia parca constricta Hattner, Wind and Wise, 1980 Broinsonia parca parca (Stradner) Lentin and Williams, 1976 Chatangiella tripartita (Cookson and Eisenack) Lentin and Williams, 1976 Corradinisphaeridium horridum (Deflandre) Masure, 1986 Exochosphaeridium majus (Lejeune-Carpentier) Peyrot, 2011 Hystrichodinium pulchrum Deflandre, 1935 Hystrichosphaeridium duplum Lentin and Williams, 1989 Hystrichosphaeridium salpingophorum (Deflandre) Deflandre, 1937 emend. Davey and Williams, 1966 Hystrichosphaeridium tubiferum (Ehrenberg) Deflandre, 1937 Isabelidinium cooksoniae (Alberti) Lentin and Williams, 1977 Odontochitina porifera Cookson, 1956 Oligosphaeridium complex (White) Davey and Williams, 1966 Oligosphaeridium pulcherrimum (Deflandre and Cookson) Davey and Williams, 1966 Palaeohystrichophora infusorioides Deflandre, 1935 Pervosphaeridium monasteriense Yun, 1981 Pervosphaeridium pseudhystrichodinium (Deflandre) Yun, 1981 Pterodinium cingulatum (Wetzel) Below, 1981 Raetiaedinium truncigerum (Deflandre) Kirsch, 1991 Spiniferites membranaceus (Rossignol) Sarjeant, 1970 Spiniferites ramosus (Ehrenberg) Mantell, 1854 Spiniferites scabrosus (Clarke and Verdier) Lentin and Williams, 1975 Surculosphaeridium longifurcatum (Firtion) Davey, Downie, Sarjeant and Williams, 1966 Tanyosphaeridium regulare Davey and Williams, 1966…”