In the Hettangian/Sinemurian deposits of the Komló area (Mecsek Mountain, Hungary), footprints of Jurassic dinosaurs assigned to the ichnospecies Komlosaurus carbonis are more or less the only published palaeontological data of this region.
The formation appears to have been laid down in a tropical environment somewhat similar to the Bahamas today, and on the basis of fossil evidence an Early Jurassic (Sinemurian) age has been proposed for the Gibraltar Limestone, though in appearance it has a strong resemblance to the Carboniferous Limestone that underlies large parts of England and Wales.
This specimen was found in Voyizane, Joe Gqabi District, Cape Province, in rocks of the upper Elliot Formation, a rock formation that dates to the early part of the Early Jurassic (Hettangian–Sinemurian, approximately 200 to 190 million years ago).
Pyritic Promicroceras fossils are commonly found along the coast of Lyme Regis where they are well preserved in the Lower Jurassic (Sinemurian) Black Ven Marl.