Perrinitidae

Perrinites hilli, from the Peabody Museum of Natural History.

Belongs within: Ammonoidea.

The Perrinitidae are a group of ammonoids with ammonitic sutures known from the Lower and Middle Permian (Miller et al. 1957).

Characters (from Miller et al. 1957): Conch thickly subdiscoidal to subglobular and involute, umbilicus small. Sutures ammonitic with five pairs of distinctly V-shaped lateral lobes both externally and internally.

<==Perrinitidae [Paraperrinitinae, Shumarditoidea]
    |--Properrinites ZL04
    |    |--P. boesei (Plummer & Scott 1937) ZL04
    |    |--P. denhami RR79
    |    |--P. mooreae RR79
    |    `--P. nevadensis RR79
    `--+--Metaperrinites Ruzhencev 1950 (see below for synonymy) ZL04
       |    |--*M. vicinus (Miller & Furnish 1940) [=Properrinites cumminsi vicinus] ZL04
       |    |--M. involutus (Liang 1982) ZL04
       |    `--M. ishibashii Zhou & Liengjarren 2004 ZL04
       `--Perrinites Böse 1917 [incl. Perrimetanites Leonova 1983] ZL04
            |--*P. vidriensis Böse 1917 ZL04
            |--P. gouldi Miller & Furnish 1940 [=P. hilli gouldi] ZL04
            |--P. hilli (Smith 1903) ZL04
            `--P. tardus Miller & Furnish 1940 (see below for synonymy) ZL04

Metaperrinites Ruzhencev 1950 [incl. Mapirites Leonova 1983, Nepirrites Leonova 1983, Ripernites Leonova 1983, Shuangyangites Liang 1982, Shyndoceras Leonova 1983] ZL04

Perrinites tardus Miller & Furnish 1940 [=Perrinites hilli tardus, Paraperrinites tardus; incl. Perrimetanites progressus Leonova 1983] ZL04

*Type species of generic name indicated

REFERENCES

Miller, A. K., W. M. Furnish & O. H. Schindewolf. 1957. Paleozoic Ammonoidea. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt L. Mollusca 4. Cephalopoda: Ammonoidea pp. L11–L79. Geological Society of America, and University of Kansas Press.

[RR79] Ross, C. A., & J. R. P. Ross. 1979. Permian. In: Robison, R. A., & C. Teichert (eds) Treatise on Invertebrate Paleontology pt A. Introduction. Fossilisation (Taphonomy), Biogeography and Biostratigraphy pp. A291–A350. The Geological Society of America, Inc.: Boulder (Colorado), and The University of Kansas: Lawrence (Kansas).

[ZL04] Zhou, Z., & M. Liengjarern. 2004. Lower Permian perrinitid ammonoid faunas from Thailand. Journal of Paleontology 78: 317–339.