liik
Dicranograptus irregularis Hadding, 1913
Sünonüümika
1913     Dicranograptus irragularis n. sp. — Hadding , lk. 52, joon. Taf. 4:1-2
2015     Dicranograptus irregularis — Goldman et al. , lk. 3
Valik taksonit käsitlevast teaduskirjandusest
Maletz, J., Ahlberg, P., Lundberg, F. 2020. Ordovician graptolite biostratigraphy of the Röstånga-2 drill core (Scania, southern Sweden).  GFF   142,   3,   206-222. DOI:10.1080/11035897.2020.1739743
Goldman, D., Nõlvak, J., Maletz, J. 2015. Middle to Late Ordovician graptolite and chitinozoan biostratigraphy of the Kandava-25 drill core in western Latvia.  GFF   137,   3,   197-211. DOI:10.1080/11035897.2015.1021375
Männil, Ralf 1976. Distribution of graptoloids in the Ordovician carbonate rocks of the East Baltic area.  Graptolites and Stratigraphy, pp. 105-118.   Academy of Sciences of Estonian SSR. Institut of Geology. 
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Klassifikatsioon
| organismirühm | Biota | 
| riik | Animalia | 
| hõimkond | Hemichordata | 
| klass | Pterobranchia | 
| alamklass | Graptolithina | 
| selts | Graptoloidea | 
| alamselts | Axonophora | 
| sugukond | Dicranograptidae | 
| alamsugukond | Dicranograptinae | 
| perekond | Dicranograptus | 
| liik | clingani | 
| irregularis | |
| spinifer | 
Levik kirjandusandmetel
- Männil, Ralf, 1976 Kandava 25 puurauk Uhaku lade
 - Goldman et al., 2015a Kandava 25 puurauk Uhaku lade
 - Maletz et al., 2020 Röstånga-2 puurauk Darriwili lade