†Graptolithus constrictus Hall 1865 (graptolite)
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Alternative combination: Expansograptus constrictus
Belongs to Graptolithus according to J. Hall 1865
Sister taxa: Graptolithus (Prionotus), Graptolithus murchisonii, Graptolithus octobrachiatus, Graptolithus similis
Ecology: passively mobile planktonic suspension feeder
Distribution:
• Ordovician of Argentina (2 collections), the Russian Federation (1)
• Arenigian of Argentina (1)
• Arenig of Canada (1: Yukon)
Total: 5 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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