Pterobranchia - Graptoloidea - Dichograptidae
Alternative combination: Graptolithus extensus
Belongs to Didymograptus according to R. A. Henderson 1983
Sister taxa: Didymograptus (Didymograptellus), Didymograptus (Didymograptus), Didymograptus balticus, Didymograptus demissus, Didymograptus ensjoensis, Didymograptus euodus, Didymograptus filiformis, Didymograptus holmi, Didymograptus latus, Didymograptus murchisoni, Didymograptus nicholsoni, Didymograptus pacificus, Didymograptus paraindentus, Didymograptus paraindentus, Didymograptus protobalticus, Didymograptus pusillus, Didymograptus spinulosus, Didymograptus suecicus, Didymograptus turgidus, Didymograptus undulatus, Didymograptus uniformis
Ecology: passively mobile planktonic suspension feeder
Distribution:
• Arenig of Australia (6 collections), Canada (7: Yukon), United States (1: Alaska)
• Arenigian of Canada (1: Northwest Territories)
• Ordovician of New Zealand (4), United States (3: Idaho)
Total: 22 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.