Species

Orthograptus calcaratus (Lapworth, 1876)

Synonyymit

1907 Diplograptus (Orthograptus) calcaratus — Elles et Wood , pp. 239-241, fig. 30:1a-c

1975 Rectograptus calcaratus (Lapworth) — Ulst , pp. 78-79, fig. 2:10; 1:9

Aiheeseen liittyvät julkaisut

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

Luokittelu