Keyword "TRINUCLEOID TRILOBITES" in:

The ichnofossil Rusophycus cf. cryptolithi Osgood, 1970 as a trace of the trilobite Deanaspis goldfussi (Barrande, 1846) from the Letná Formation (Upper Ordovician, Barrandian area, Czech Republic)
Mikuláš,R., Budil,P., volume 46, 2013 (GRR for 2012), pages 192–194
pdf (0.28 MB)

Several notes to the functional morphology of trinucleoid trilobites
Budil,P., Mergl,M., Fatka,O., Lisec,M., volume 44, 2011 (GRR for 2010), pages 97–99
pdf (0.29 MB)