Biometric investigation of certain species of the genus Veryhachium Acritarcha from the Ordovician of the Iskur Gorge in Bulgaria
Kalvacheva, R.; Chobanova, A.
Bulgarska Akademiya na Naukite, Geologicheski Institut, Izvestiya, Seriya Paleontologiya 22: 5-20
1973
Accession: 030316689
Statistical analysis and correlation of the morphology and biometry of palynomorph population, occurrence of graptolites and trilobites, Llanvirnian and Llandellian, Rebrovo Group.