| 词条 | Meekoceratidae |
| 释义 |
| fossil_range = {{fossil_range|252|242|Early-Middle Triassic}} | image = | regnum = Animalia | phylum = Mollusca | classis = Cephalopoda | subclassis = Ammonoidea | ordo = Ceratitida | superfamilia = Noritaceae | familia = Meekoceratidae | familia_authority = Waagen, 1985 }} The Meekoceratidae is a family of ceratitid ammonites described in the Treatise on Invertebrate Paleontology, as being more or less involute, compressed, discoidal, smooth to weakly ornamented; venter arched or tabulate; sutures ceratitic with broad saddles.[1] Now includes four subfamilies.{{specify|date=March 2018}}{{Citation needed|date=March 2018}} References1. ^W.J Arkell, et al., 197=578. Mesozoic Ammonoidea, Treatise on Invertebrate Paleontology, Part L. Geological Society of America and University of Kansas Press. {{Ceratitida-stub}} 5 : Meekoceratidae|Noritaceae|Ceratitida families|Early Triassic first appearances|Middle Triassic extinctions |
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