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)...
- 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...
- Cleviceras is an extinct genus of cephalopod belonging to the family Hildoceratidae. These cephalopods existed in the Jur****ic period, during Toarcian and...
- Praepolyplectus is an extinct genus of cephalopod belonging to the family Hildoceratidae. It is sometimes considered to be a synonym of Polyplectus. While it...
- Harpoceras is an extinct genus of ammonite belonging to the family Hildoceratidae. These cephalopods existed in the Jur****ic period, during the Toarcian...
- Scientific classification Kingdom: Animalia Phylum: Mollusca class: Cephalopoda Subclass: Ammonoidea Order: Ammonitida Family: Hildoceratidae Genus: Yakounia...
- Hildoceratinae is an extinct subfamily of cephalopods belonging to the family Hildoceratidae. Ammonites of this subfamily had s**** with elliptical or quadrate...
- genus of cephalopod belonging to the Ammonite subclass and the family Hildoceratidae that lived during the Early Jur****ic (Toarcian stage) in the Arctic...
- the source for the superfamilies Hildocerataceae beginning with the Hildoceratidae. The more recent taxonomy of Donovan et al. (1981) with seven families...
- lower Middle Jur****ic group belonging to the Ammonitina that unites the Hildoceratidae, Hammatoceratidae, Graphoceratidae, and Sonniniidae. In some taxonomies...