''Aquilonites'' is a pericyclacean goniatitid belonging to the family

Intoceratidae Intoceratidae is one of nine families of the Pericycloidea superfamily. They are an extinct group of ammonoid, which are shelled cephalopods related to squids, belemnites, octopuses, and cuttlefish Cuttlefish, or cuttles, are Marine (o ...

, suborder Goniatitina, that lived during the very early

Carboniferous The Carboniferous ( ) is a Geologic time scale, geologic period and System (stratigraphy), system of the Paleozoic era (geology), era that spans 60 million years, from the end of the Devonian Period Ma (million years ago) to the beginning of the ...

of what is now

Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

. ''Aquilonites'' has a subdiscoidal, involute shell with a small to very narrow umbilicus, covered by biconvex growth lines and sometimes weak lirae. The ventral lobe of the suture is very narrow, with straight, almost parallel or slightly sigmoidal sides. The first outer saddle is rounded and somewhat wider than ventral lobe, the lateral lobe short and bowl shaped. ''Aquilonites'' is found in the Tournaisian age Kugutyk Formation in Orenburg, Russian Federation in what can be called the Dombarovskii ammonites, associated with species of ''Gattendoria'', ''Goniocyclus'', ''Muensteroceras'', and ''Eocantites''.

References

* Paleobiology Aquilonites
8/2/10 *[2">
Paleobiology Aquilonites
8/2/10 *[2Goniat-online, Aquilonite

8/2/10 *[3] A. V. Popov and L. F. Kusina. 1997. The earliest Goniatitina (Ammonoidea) from the south Urals. Paleontological Journal 31(1):28-34 Goniatitida genera Pericyclaceae Mississippian ammonites Fossils of Russia Tournaisian life {{Goniatitida-stub