Dictyonema (graptolite)
| Dictyonema Temporal range:
Possible Miaolingian record
| |
|---|---|
| a-b: Holotype of Dictyonema retiforme
c: Stipe fragment of Dictyonema graptolithorum | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Hemichordata |
| Class: | Pterobranchia |
| Subclass: | Graptolithina |
| Order: | †Dendroidea |
| Family: | †Callograptidae |
| Genus: | †Dictyonema Hall, 1851 |
| Synonyms | |
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Dictyonema is a genus of dendroid graptolite. While initially thought to be a bridge between dendroid and graptoloid graptolites due to its seeming to possess dissepiments, Dictyonema is now understood to be an acanthograptid with a unique style of 'thecal bridges' where thecae from one stipe cross over to adjacent stipes.