Artiopoda - Redlichiida - Ellipsocephalidae
Alternative spelling: Protolenidae
Parent taxon: Ellipsocephalidae according to A. El Albani et al. 2024
See also Adrain 2011, Cederström et al. 2022 and Palmer and Gatehouse 1972
Sister taxa: Acadolenus, Alueva, Antatlasiinae, Argunaspis, Asiatella, Bergeroniaspis, Bergeroniellus, Bhargavia, Blayacina, Brevitermierella, Cambrunicornia, Catadoxides, Culmenaspis, Ellipsocephalinae, Geyerorodes, Glabrella, Hamatolenus, Issafeniella, Kadyella, Kameschkoviella, Kijanella, Kingaspis, Krolina, Kymataspis, Latikingaspis, Latoucheia, Latuzella, Lermontovia, Limataceps, Lusatiops, Nelegeria, Olekmaspis, Ourikaia, Paramicmacca, Paraprotolenella, Planolimbus, Protagraulos, Protolenella, Pruvostinoides, Pseudokadyella, Pseudolenus, Pseudoprotolenella, Ptychoparopsis, Rinconia, Sailycaspis, Sectigena, Strenuaevinae, Strenuella, Tadakoustia, Termieraspis, Termierella, Triangulaspis, Yeshanaspis
Subtaxa: Anaxarete Chorbusulina Cuneoaxiella Protolenus
Type: Protolenus
Ecology: fast-moving low-level epifaunal deposit feeder
Distribution:
• Cambrian of Antarctica (1 collection), Italy (1), Morocco (10), Poland (3), the Russian Federation (1), Spain (4), Sweden (11), the United Kingdom (1)
• Amgan of Germany (4), Poland (1)
• Caerfai of Canada (8: New Brunswick)
Total: 45 collections including 56 occurrences