Species
Holmograptus callotheca (Bulman, 1936)
Synonyymit
1932 Didymograptus callotheca — Bulman , pp. 16
Luokittelu
Organism group | Biota |
Kingdom | Animalia |
Phylum | Hemichordata |
Class | Pterobranchia |
Subclass | Graptolithina |
Suborder | Sinograptina |
Order | Sinograptidae |
Genus | Holmograptus |
Species | callotheca |
lentus | |
spinosus |