Hildoceratidae is a family of ammonoid cephalopods from the Lower Jurassic, lower Pliensbachian (Jamesoni zone) to lower Bajocian (maybe even upper Bajocian)...
3 KB (217 words) - 19:57, 18 November 2024
Praepolyplectus (category Hildoceratidae)
Praepolyplectus is an extinct genus of cephalopod belonging to the family Hildoceratidae. It is sometimes considered to be a synonym of Polyplectus. While it...
2 KB (152 words) - 00:26, 1 August 2022
Cleviceras (category Hildoceratidae)
Cleviceras is an extinct genus of cephalopod belonging to the family Hildoceratidae. These cephalopods existed in the Jurassic period, during Toarcian and...
13 KB (1,483 words) - 00:17, 30 April 2022
Harpoceras (category Hildoceratidae)
Harpoceras is an extinct genus of ammonite belonging to the family Hildoceratidae. These cephalopods existed in the Jurassic period, during the Toarcian...
5 KB (267 words) - 19:56, 18 November 2024
Scientific classification Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Subclass: Ammonoidea Order: Ammonitida Family: Hildoceratidae Genus: Yakounia...
1 KB (121 words) - 20:32, 18 November 2024
Hildoceras bifrons is an extinct species of ammonite in the family Hildoceratidae. It dates from about 175 million years ago in the Early Jurassic when...
5 KB (539 words) - 19:57, 18 November 2024
Hildoceras (category Hildoceratidae)
Hildoceras is a genus of ammonite from the Jurassic period in the family Hildoceratidae. The shells are characterized by a narrow discoidal evolute shape, keeled...
4 KB (214 words) - 07:29, 18 November 2024
Sphenarpites (category Hildoceratidae)
Sphenarpites is an extinct genus of cephalopod belonging to the family Hildoceratidae. Only one specimen is known, which has been found in Kelat, Baluchistan...
1 KB (79 words) - 04:21, 29 April 2022
lower Middle Jurassic group belonging to the Ammonitina that unites the Hildoceratidae, Hammatoceratidae, Graphoceratidae, and Sonniniidae. In some taxonomies...
3 KB (172 words) - 19:57, 18 November 2024
the source for the superfamilies Hildocerataceae beginning with the Hildoceratidae. The more recent taxonomy of Donovan et al. (1981) with seven families...
3 KB (297 words) - 21:57, 28 April 2021
Hildoceratidae. Hildaites H. striatus H. wrighti Amellago Tagoudite Formation Lower Toarcian Isolated shells An Ammonite of the family Hildoceratidae...
118 KB (7,484 words) - 23:35, 6 February 2025
small grooves, or a large median groove. Frechiella is included in the Hildoceratidae, a family of Jurassic ammonoid cephalopods that are part of the Hildocerataceae...
3 KB (283 words) - 17:27, 10 January 2024
Pliensbachian and Toarcian ages. He studied the evolutions of families Hildoceratidae, Hammatoceratidae and Polymorphitidae.[1] He introduced numerous new...
4 KB (347 words) - 00:32, 28 February 2024
Hildoceratinae (category Hildoceratidae)
Hildoceratinae is an extinct subfamily of cephalopods belonging to the family Hildoceratidae. Ammonites of this subfamily had shells with elliptical or quadrate...
3 KB (251 words) - 01:50, 29 December 2022
subcomp P. ssp. Caudiel outcrop Isolated shells An Ammonite of the family Hildoceratidae Sonninia S. spp. Sarrión.1 Sarrión.2 Sarrión.3 Isolated shells An Ammonite...
32 KB (1,181 words) - 01:10, 26 November 2024
genus of cephalopod belonging to the Ammonite subclass and the family Hildoceratidae that lived during the Early Jurassic (Toarcian stage) in the Arctic...
1 KB (96 words) - 21:30, 5 July 2024
algovianum Aït Blal Aït-Abbès Isolated Shells An ammonite of the family Hildoceratidae. Arieticeras cf. algovianum is indicative of the Middle Domerian (Upper...
96 KB (5,307 words) - 21:01, 6 February 2025
Class: Cephalopoda Subclass: †Ammonoidea Order: †Ammonitida Family: †Hildoceratidae Subfamily: †Grammoceratinae Genus: †Grammoceras Hyatt, 1867 Species...
2 KB (138 words) - 17:10, 20 December 2023
Mercaticeras (category Hildoceratidae)
Mercaticeras is an extinct genus of ammonites belonging to the family Hildoceratidae. The genus name Mercaticeras derives from Michele Mercati (a Tuscan...
4 KB (323 words) - 08:07, 18 November 2024
and Sonniniidae removed from the Hildoceratoidea, left with only the Hildoceratidae and its included subfamilies. W.J. Arkell et al., 1957. Treatise on...
2 KB (160 words) - 07:10, 18 November 2024
pectinatum Bou Dahar N7 Isolated Shells An Ammonite, member of the family Hildoceratidae Juraphyllites J. libertus J. limatus J. (Harpophylloceras) eximius Bou...
77 KB (2,878 words) - 19:06, 6 February 2025
Harpoceratinae (category Hildoceratidae)
Harpoceratinae is an extinct subfamily of cephalopods belonging to the family Hildoceratidae. Ammonites of this subfamily had involute and compressed shells with...
10 KB (987 words) - 18:56, 28 January 2023
Orthildaites (category Hildoceratidae)
synonym of O. douvillei. LACROIX, Pierre; LE PICHON, Jean-Pierre. Les Hildoceratidae du Lias moyen et supérieur des domaines NW européen et téthysien: une...
3 KB (254 words) - 07:02, 24 March 2024
quarry. Épleny quarry Csernye quarry An Ammonite, member of the family Hildoceratidae inside Ammonitida. The most diverse, related with specimens from Germany...
67 KB (3,468 words) - 08:28, 6 January 2025
Taffertia (category Hildoceratidae)
Taffertia is an extinct genus of cephalopod belonging to the family Hildoceratidae. These cephalopods existed in the Jurassic period, during Toarcian age...
2 KB (159 words) - 09:05, 18 November 2024
Ovaticeras (category Hildoceratidae)
Ovaticeras is an extinct genus of cephalopod belonging to the family Hildoceratidae. These cephalopods existed in the Jurassic period, during upper Pliensbachian...
4 KB (340 words) - 04:19, 29 April 2022
ammonite family Hildaites H. sp. Mount Brughetto Mount Cornizzolo Shells A Hildoceratidae ammonite Mesodactylites M. sapphicus M. sp. Mount Brughetto Mount Cornizzolo...
22 KB (1,310 words) - 18:21, 28 October 2024
(2012). "Latest Toarcian-earliest Bajocian (Jurassic) Grammoceratinae (Hildoceratidae, Ammonitina) of the western Tethys: Their palaeobiogeographic and phylogenetic...
10 KB (1,029 words) - 19:38, 13 September 2023
Parahildaites (category Hildoceratidae)
Class: Cephalopoda Subclass: †Ammonoidea Order: †Ammonitida Family: †Hildoceratidae Subfamily: †Hildoceratinae Genus: †Parahildaites Blaison, 1967 Type...
1 KB (90 words) - 19:42, 17 April 2021
Perisphinctidae ammonite. P. torquatus P. katrolensis P. sparsiplicatus P. alterneplicatus P. euplocus Harpoceras H. kobelli A Hildoceratidae ammonite....
7 KB (227 words) - 14:12, 14 November 2024