Definition of Hildoceratidae. Meaning of Hildoceratidae. Synonyms of Hildoceratidae

- Hildoceratidae is a family of ammonoid cephalopods from the Lower Jur****ic, lower Pliensbachian (Jamesoni zone) to lower Bajocian (maybe even upper Bajocian)...
- Cleviceras is an extinct genus of cephalopod belonging to the family Hildoceratidae. These cephalopods existed in the Jur****ic period, during Toarcian and...
- Hildoceras is a genus of ammonite from the Jur****ic period in the family Hildoceratidae. The s**** are characterized by a narrow discoidal evolute shape, keeled...
- Hildoceras bifrons is an extinct species of ammonite in the family Hildoceratidae. It dates from about 175 million years ago in the Early Jur****ic when...
- Harpoceras is an extinct genus of ammonite belonging to the family Hildoceratidae. These cephalopods existed in the Jur****ic period, during the Toarcian...
- small grooves, or a large median groove. Frechiella is included in the Hildoceratidae, a family of Jur****ic ammonoid cephalopods that are part of the Hildocerataceae...
- lower Middle Jur****ic group belonging to the Ammonitina that unites the Hildoceratidae, Hammatoceratidae, Graphoceratidae, and Sonniniidae. In some taxonomies...
- genus of cephalopod belonging to the Ammonite subclass and the family Hildoceratidae that lived during the Early Jur****ic (Toarcian stage) in the Arctic...
- Praepolyplectus is an extinct genus of cephalopod belonging to the family Hildoceratidae. It is sometimes considered to be a synonym of Polyplectus. While it...
- Pliensbachian and Toarcian ages. He studied the evolutions of families Hildoceratidae, Hammatoceratidae and Polymorphitidae.[1] He introduced numerous new...