Table 5 in First population-level study of the ammonite genus Hildoglochiceras Spath, and the Lower Tithonian record of the Hildoglochiceras Horizon in the Kachchh Basin, India

Table 5. Comparison of morphological characters of H. kobelli (Oppel) and H. latistrigatum Uhlig (partially mentioned in Uhlig 1903: 28).
H. kobelliH. latistrigatumshell stoutshell not as stout as Hildoglochiceras kobelliwidth of whorl above spiral groove diminishing slowlythickness of whorl above spiral groove diminishing rapidlyspiral groove narrower on the inner whorls wider in the outer whorlsspiral groove widerlower margin of spiral groove not sharp and less highlower margin of spiral groove much sharper and highcostae begin earlier (Fig. 8A-E)costae begin laterspiral furrow starts laterspiral furrow starts earliercostae dense (Fig. 8C, D, H, I, K, L)costae wide apartUmbilicus smallUmbilicus large