Helcionelloida - Helcionellida - Helcionellidae
Alternative combination: Lapworthella honorabilis
Synonyms: Lapworthella xianfengensis Wang 1994, Obtusoconus aberratus Esakova and Zhegallo 1996, Obtusoconus multicostatus Yü 1979
Full reference: Y. Qian, M. Chen, and Y. Y. Chen. 1979. Hyolithids and other small shelly fossils from the Lower Cambrian Huangshandong Formation in the eastern part of the Yangtze Gorge. Acta Palaeontologica Sinica 18(3):207-230
Belongs to Obtusoconus according to A. Kouchinsky et al. 2017
See also Parkhaev and Demidenko 2010, Qian et al. 1979, Wang 1994 and Yü 1979
Sister taxa: Obtusoconus ampla, Obtusoconus brevis, Obtusoconus foliaceus, Obtusoconus grossicostus, Obtusoconus mirabilis, Obtusoconus paucicostatus, Obtusoconus reduncus, Obtusoconus vostokovae, Hematoconus pygmaeus
Type specimens:
- Obtusoconus honorabilis: Its type locality is Tianzhushan, upper bed, which is in a Meishucunian marine phosphorite in the Huangshandong Formation of China
- Lapworthella xianfengensis: PIN 4552/213 (spicule). Its type locality is Xianfeng Settlement, 60 km from Kunming, which is in a Meishucunian/Tommotian carbonate dolomite/dolomite in the Dengying Formation of China.
- Obtusoconus aberratus:
- Obtusoconus multicostatus:
Ecology: slow-moving low-level epifaunal detritivore
Distribution:
• Cambrian of China (10 collections)
Total: 10 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.