Ulvophyceae - Bryopsidales - Codiaceae
Parent taxon: Garwoodioideae according to J. H. Johnson 1964
See also Dragastan et al. 1999, Senowbari-Daryan et al. 1993 and Vachard and Aretz 2004
Sister taxa: none
Subtaxa: Hedstroemia australe Hedstroemia halimedoides
Type: Hedstroemia halimedoides
Ecology: stationary epifaunal "photoautotroph"
Distribution:
• Triassic of Austria (1 collection), Italy (2), Japan (1), Oman (1)
• Permian of United States (1: New Mexico)
• Givetian of China (1)
• Devonian of Australia (1), China (1), the Russian Federation (1)
• Silurian of Canada (2: Nunavut, Ontario), Sweden (2), United States (2: Alaska)
• Whiterockian of Canada (1: Newfoundland and Labrador)
• Ordovician of Canada (1: Newfoundland and Labrador), China (3), Norway (1), the Russian Federation (2), United States (1: Tennessee)
• Cambrian of Canada (1: Northwest Territories), the Russian Federation (1)
Total: 27 collections including 28 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.