found: nuc87-73404: Birkelund, T. The Stratigraphy of the Upper Jurassic and Lower ... 1984(hdg. on DI-GS rept.: Callomon, John H.; usage: John H. Callomon)
found: The cardioceratidae, 1985:t.p. (J.H. Callomon) verso of t.p. (John H. Callomon)
found: Times online WWW site, June 1, 2010(John Callomon; b. Apr. 7, 1928, Berlin; moved to England with his family as a refugee, 1937; d. Apr. 1, 2010; leading authority on Jurassic ammonites whose landmark discovery of their sexual dimorphism was dismissed by learned journals)
found: Independent online ed., June 15, 2010(Professor John Callomon; John Hannes Callomon; b. Apr. 7, 1928, Berlin; d. Apr. 1, 2010; spectroscopist, geologist, and paleontologist)
