For history see Himyarite Kingdom

Homerites is a small, involute, globase fossil ceratitid

Ceratitida

The Ceratitida is an order that contains almost all ammonoid cephalopod genera from the Triassic as well as ancestral forms from the Upper Permian, the exception being the phylloceratids which gave rise to the great diversity of post Triassic ammonites....

 with an eccentric outer whorl and subammonitic sutures belonging to the family Halortidae

Halortidae

The Haloritidae is an ammonoid family belonging to the Ceratitida and placed in the Tropitaceae, a superfamily. The Haloritidae are characteristically subglobose and involute, commonly with lateral ribs that may cross the venter. In some the ribs may have nodes. Ventral keels and furrows are...

 The body chamber has a slight central keel and radial dichotomous ribs that commonly terminate at spines on the ventral shoulder. Homerites, described and named by Mojsisovics in 1893 has been found in the Upper Triassic

Triassic

The Triassic is a geologic period and system that extends from about 250 to 200 Mya . As the first period of the Mesozoic Era, the Triassic follows the Permian and is followed by the Jurassic. Both the start and end of the Triassic are marked by major extinction events...

 (Carnian) of California and the Alps. The Halortidae in which it is placed is part of the superfamily Tropitaceae.