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Skirroceras macrum

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Skirroceras macrum
Temporal range: Jurassic (Bajocian), 171.6–167.7 Ma
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Fossil of Skirroceras macrum from France, on display at the Museo Civico di Storia Naturale di Milano
Scientific classification
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S. macrum
Binomial name
Skirroceras macrum
(von Quenstedt)

Skirroceras macrum is a Stephanoceratacean (ammonite) species belonging to the family Stephanoceratidae.

These fast-moving nektonic carnivores lived during the Jurassic period, in the Bajocian age.[2]

Description

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Skirroceras macrum has an evolute shell reaching about 11.5 centimetres (4.5 in) of diameter. These ammonites are heavily ribbed, with characteristic nodes.

Distribution

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Fossils of Skirroceras macrum are found in the Middle Jurassic Bajocian age marine strata of England and France.[3]

References

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