Trilobita - Asaphida - Nileidae
Synonym: Symphysurina brevispicata Hintze 1953
Belongs to Symphysurina according to Kindle 1929
See also Hintze 1953
Sister taxa: Symphysurina brevis, Symphysurina bulbosa, Symphysurina elegans, Symphysurina globocapitella, Symphysurina goniura, Symphysurina myopia, Symphysurina robusta, Symphysurina spicata, Symphysurina uncaspicata, Symphysurina woosteri
Type specimens:
- Symphysurina walcotti: GSC 9378, a pygidium
- Symphysurina brevispicata: 26400 (AMNH), an exoskeleton.
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Ordovician of Canada (2: Newfoundland and Labrador collections), United States (2: Nevada, Utah)
• Tremadoc of Canada (9: Alberta)
• Skullrockian of United States (6: Texas, Utah)
• Cambrian of United States (10: Texas, Utah)
Total: 29 collections including 30 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.