''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 molluscs o ...

, suborder

Goniatitina Goniatitina is one of two suborders included in the order Goniatitida; extinct Paleozoic Ammonoidea, ammonoid cephalopods only distantly related to the Nautiloidea. Taxonomy The Goniatitina contains 17 defined superfamilies, listed below. * Adr ...

, that lived during the very early

Carboniferous The Carboniferous ( ) is a geologic period and system of the Paleozoic that spans 60 million years from the end of the Devonian Period million years ago ( Mya), to the beginning of the Permian Period, million years ago. The name ''Carbonifero ...

of what is now

Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...

. ''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 Orenburg (russian: Оренбу́рг, ), formerly known as Chkalov (1938–1957), is the administrative center of Orenburg Oblast, Russia. It lies on the Ural River, southeast of Moscow. Orenburg is also very close to the Kazakhstan-Russia bor ...

, 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