Previously assigned to phyllocarid crustaceans; considered as of uncertain affinity by Rolfe, 1969; Mironenko, 2021 ... [details]
Originally described as phyllopod crustacean, later considered a nautiloid operculum, refer Turek, 1978; for present ... [details]
Originally described as a phyllopod Crustacean. Rolfe, 1969 lists as syn. of Discinocaris (Discinarididae), however ... [details]
Listed as Cru[stacea] in Nomen. Zool., subjectively synonymised with Sidetes Giebel, 1847 (ammonite aptychus) by ... [details]
Originally described as a phyllopod Crustacean; for present taxonomic placement refer Mironenko, 2021. [details]
Listed as Cru[stacea] in Nomen. Zool., subjectively synonymised with Sidetes Giebel, 1847 (ammonite aptychus) in ... [details]