|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Pterobranchia - Diplograptoidea - Diplograptidae
It was recombined as Orthograptus spinigerus by Goldman (1995).
|Year||Name and author|
|1907||Diplograptus (Orthograptus) quadrimucronatus spinigerus Elles and Wood p. 225 figs. pl. 28, fig. 2a-2d, text-fig. 146.|
|1995||Orthograptus spinigerus Goldman pp. 532 - 535 figs. 19.1-19.13, 20.1-20.6|
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.