FIG. 10. — A-D in A cool-water bryozoan association from the La Pola Formation (Sandbian, Ordovician) of Argentine Precordillera

FIG. 10. — A-D, Diplotrypa sp. A, CEGH-UNC 27543 a: A, B, longitudinal section showing autozooecial chambers with diaphragms and mesozooecia; C, D, tangential thin section showing autozooecial apertures and mesozooecia; E-G, Tarphophragma macrostoma (Loeblich, 1942), CEGH-UNC 27520 d: E, oblique section through the colony; F, longitudinal section showing autozooecial chambers and mesozooecia; G, tangential thin section showing autozooecial apertures and mesozooecia. Scale bars: A, E, 1 mm; B, C, F, G, 0.5 mm; D, 0.2 mm.