Trilobita - Phacopida - Cheiruridae
Synonyms: Cheirurus sol Billings 1865, Heliomera chipperfieldi Tripp 1967, Heliomera sol Billings 1865, Heliomeroides akocephala Shaw 1968
Full reference: W. R. Evitt. 1951. Some Middle Ordovician trilobites of the families Cheiruridae, Harpidae, and Lichidae. Journal of Paleontology 25(5):587-616
Belongs to Heliomeroides according to W. R. Evitt 1951
See also Billings 1865, Chatterton and Ludvigsen 1976, Raymond 1905 and Shaw 1968
Sister taxa: Heliomeroides alacer, Heliomeroides evitti, Heliomeroides freschaufae, Heliomeroides raymondi, Heliomeroides treta
Type specimens:
- Heliomeroides teres: USNM 116294, a cephalon/head (cranidium). Its type locality is Loc. 7, bridge east of Edinburg, which is in a Blackriveran carbonate limestone in the Edinburg Formation of Virginia.
- Heliomera chipperfieldi: Its type locality is Auchensoul, which is in a Llandeilo/Aurelucian marine limestone in the Stinchar Limestone Formation of the United Kingdom.
- Heliomera sol: GSC 683 (lectotype), a cephalon/head (cranidium).
- Heliomeroides akocephala: YPM 23326, a cephalon/head (cranidium).
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Whiterockian of Canada (1: Newfoundland and Labrador collection), United States (2: New York, Vermont)
• Chazyan of Canada (7: Newfoundland and Labrador, Northwest Territories), United States (2: New York)
• Arenigian of Canada (1: Northwest Territories)
• Ordovician of the United Kingdom (1), United States (1: Virginia)
Total: 15 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.