Temporal range: Anisian–Ladinian
Aplococeratidae is a family of ceratitids from the Middle Triassic with very simplified sutures and a tendency to lose their ornamentation. Shells are generally evolute, more or less compressed, with rounded venters.[disambiguation needed] Ornamentation if present consists of ubilical ribs that disappear outwardly, toward the venter. The suture is ceratitic or goniatitic.
Arkell et al. (1957), in the Treatise on Invertebrate Paleontology, Part L included the Aplococeraitdae in the Ceratitaceae, whereas E. T. Tozer in 1981 includes them in the Danubitaceae, established by Spath, also in 1951.
- Arkell, et al, 1957. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L (L157-158). Geological Society of America and University of Kansas Press.
- Paleobiology Database Aplococeratidae entry accessed 9 December 2011
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