after Uberlacker et al., 2016:

non 1884 Goniatites desideratum. – Walcott, p. 203, pl. 17, fig. 10.

cf. p. 1948 Gyroceratites desideratus. – Teichert, p. 65, pl. 16, figs. 1, 4-6 (non pl. 16, figs. 2, 3 = Teicherticeras

sp. D in Erben 1965

cf. p. 1958 Gyroceratites desideratus. – Teichert & Talent, pp. 12, 13, 17.

cf. 1960 Teicherticeras desideratum. – Erben, pp. 63, 65.

cf. 1964a Teicherticeras desideratum. – Erben, fig. 9.

cf. 1965 Teicherticeras desideratum. – Erben, pp. 289-291.

cf. 1983 Teicherticeras teicherti. – Chlupá? & Turek, p. 26.

Specimen SMF 60513 ca. max dm 70 mm and completes at least 3 whorls. Advolute.

Possibly with an umbilical window. WER ~ 2.14. uw/dm = 0.45 at dm = 70 mm