''Uraloceras'' is an

ammonoid Ammonoids are a group of extinct marine mollusc animals in the subclass Ammonoidea of the class Cephalopoda. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids (i.e., octopuses, squid and cuttlefish) ...

cephalopod genus belonging to the goniatitid family

Paragastrioceratidae Paragastrioceratidae is one of ten families of the Neoicoceratoidea superfamily. They are an extinct group of ammonoid, which are shelled cephalopods related to squids, belemnites, octopuses, and cuttlefish, and more distantly to the nautiloid ...

. The genus was named by Ruzhencev 1936 and is a jr. synonym of ''

Pseudogastrioceras Pseudogastrioceratinae is one of two subfamilies of the Paragastrioceratidae family. They are an extinct group of ammonoid, which are shelled cephalopods related to squids, belemnites, octopuses, and cuttlefish, and more distantly to the ...

'' Spath 1930 according to Miller, Furnish and Schindeworlf, 1957. More recent classifications however list the two as distinct genera and put ''Uraloceras'' in the

Paragastrioceratinae Paragastrioceratinae is one of two subfamilies of the Paragastrioceratidae family. They are an extinct group of ammonoid, which are shelled cephalopods related to squids, belemnites, octopuses, and cuttlefish Cuttlefish or cuttles are marine ...

and ''Pseudogastrioceras'' in the

Pseudogastrioceratinae Pseudogastrioceratinae is one of two subfamilies of the Paragastrioceratidae family. They are an extinct group of ammonoid, which are shelled cephalopods related to squids, belemnites, octopuses, and cuttlefish, and more distantly to the nautiloi ...

. ''Uraloceras'', which comes from the

Permian The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Paleoz ...

, is involute with a small to medium umbilicus and rounded venter. The shell is covered by longitudinal ribbing or coarse lirae. The suture, as characteristic of the family, has eight lobes, of which only the ventral one is bifurcate

References

*Miller, Furnish, and Schindewolf, 1957. Paleozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L. Geological Soc. of America. R.C. Moore (ed)
Paleobiology Database-Uraloceras
8/20/2010

8/20/2010 Paragastrioceratidae Goniatitida genera Permian ammonites Ammonites of Australia Paleozoic life of Nunavut Paleozoic life of Yukon {{Goniatitida-stub