Suecoceras holmi (PATRUNKY, 1929); Eoplacognathus reclinatus Zone, Lasnarnagian, erratic boulders. Poland. 1. Phragmocone in ventral view (a, b), ZPAL N/070; erratic boulder E-138, Miedzyzdroje. 2. Phragrnocone ZPALN/969, same boulder; note the siphuncle and spiculum. 3. Longitudinal (a) and transverse (b) section through the apical part of inflated larval shell, ZPAL N/07l ; erratic bulder E-132. 4. Phragmocone ZPAL N/074  in ventral view; Mochty. 5. Phragmocone in ventral view, ZPAL N/075; Zgierz .

Suecoceras holmi (Patrunky, 1926). a Reconstruction of longitudinal section through apical part of the shell, mostly from the specimen ZPAL N/071. b section through a siphuncle, ZPAL N/079, erratic boulder, Orlowo, Poland.