''Craspeditidae'' is an ammonoid cephalopod family included in the

Perisphinctoidea Perisphinctoidea, formerly Perisphinctaceae, is a superfamily of Middle Jurassic (Bajocian) to Lower Cretaceous (Barremian) Ammonitina, ammonites, commonly with evolute shells with strong ribbing that typically divides about mid flank before cro ...

superfamily. Some classifiers consider the Craspeditidae a subfamily in the Polyptychitidae. These ammonites lived during the Late

Jurassic The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately 143.1 Mya. ...

and Early

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ...

Genera

*'' Craspedites'' † *'' Platylenticeras'' † *'' Tolypeceras'' †Craspeditidae ammonites in Ammonites
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References

Cretaceous ammonites Jurassic ammonites Perisphinctoidea Ammonitida families {{ammonitina-stub