†Sigmagraptus Ruedemann 1904 (graptolite)
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Pterobranchia - Graptoloidea - Sigmagraptidae
Parent taxon: Sigmagraptidae according to G. A. Lo Valvo et al. 2020
See also Sepkoski 2002
Sister taxa: Eotetragraptus, Goniograptus, Praegoniograptus
Subtaxa: Sigmagraptus praecursor
Ecology: passively mobile planktonic suspension feeder
Distribution:
• Arenig of Australia (6 collections), Canada (2: Yukon)
• Ningkuo of China (1)
• Ordovician of Argentina (1)
Total: 10 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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