Artiopoda - Agnostida - Metagnostidae
Full reference: H. B. Whittington. 1965. Trilobites of the Ordovician Table Head Formation, western Newfoundland. Bulletin of the Museum of Comparative Zoology 132(4):275-441
Parent taxon: Metagnostidae according to H. B. Whittington et al. 1997
See also Sepkoski 2002
Sister taxa: Anglagnostus, Arthrorhachis, Chatkalagnostus, Corrugatagnostus, Dividuagnostus, Geragnostella, Geragnostus, Granuloagnostus, Homagnostoides, Trinodus
Subtaxa: Galbagnostus galba Galbagnostus valmyensis
Ecology: slow-moving epifaunal detritivore
Distribution:
• Chazyan of Canada (4: Newfoundland and Labrador collections)
• Whiterockian of Canada (3: Newfoundland and Labrador)
• Ordovician of Argentina (2), Australia (5), Ireland (1), the Russian Federation (1), United States (1: Nevada)
Total: 17 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.