The Hettangian is the earliest age and lowest stage of the Jurassic Period of the geologic timescale. It spans the time between 201.3 ± 0.2 Ma and 199... 7 KB (524 words) - 16:07, 10 November 2022 |
Rhaetian (section Rhaetian-Hettangian boundary) chronostratigraphy). It was preceded by the Norian and succeeded by the Hettangian (the lowermost stage or earliest age of the Jurassic). The base of the... 43 KB (5,052 words) - 01:08, 30 April 2024 |
"flat stone". There has been some debate over the actual base of the Hettangian Stage, and so of the Jurassic System itself. Biostratigraphically, the... 12 KB (992 words) - 21:58, 21 March 2024 |
to the suborder Darwinulocopina is described from the Lower Jurassic (Hettangian) Whitmore Point Member of the Moenave Formation (Arizona and Utah, United... 175 KB (9,235 words) - 08:52, 7 March 2024 |
Frog (category Extant Hettangian first appearances) A frog is any member of a diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura (ἀνούρα, literally without... 175 KB (20,031 words) - 20:30, 6 April 2024 |
quadrupedal locomotion Abrictosaurus 1975 Elliot Formation (Early Jurassic, Hettangian to Sinemurian) Lesotho South Africa Known from two skulls, one of which... 53 KB (2,460 words) - 02:45, 19 January 2024 |
Ginkgoites, Sphenobaiera and Eretmophyllum types. It is known from the Hettangian to Aptian of both Hemispheres. Zhou, Zhi-Yan (March 2009). "An overview... 1 KB (105 words) - 19:13, 13 October 2022 |
yingliangis. Dornraptor Gen. et sp. nov Valid Baron Early Jurassic (Hettangian–Sinemurian) Blue Lias Formation United Kingdom An averostran theropod... 105 KB (10,557 words) - 02:11, 30 April 2024 |
Hermit crab (category Extant Hettangian first appearances) with the oldest known species being Schobertella hoelderi from the late Hettangian of Germany. Hermit crabs can be informally divided into two groups: aquatic... 38 KB (4,348 words) - 16:53, 25 April 2024 |
Lizard (category Extant Hettangian first appearances) Lizard is the common name used for all squamate reptiles other than snakes (and to a lesser extent amphisbaenians), encompassing over 7,000 species, ranging... 66 KB (6,511 words) - 19:22, 27 April 2024 |
Caecilian (category Hettangian first appearances) Caecilians (/sɪˈsɪliən/; New Latin for 'blind ones') are a group of limbless, vermiform (worm-shaped) or serpentine (snake-shaped) amphibians with small... 55 KB (5,434 words) - 05:23, 8 April 2024 |
Notocupes (section Hettangian (201.3 Ma to 199.3 Ma)) Notocupes is an extinct genus of medium-sized archostematan beetles from the Mesozoic Era of Eurasia, including over 50 described species. Historically... 12 KB (1,021 words) - 20:52, 9 March 2024 |
lower jaw from a longirostrine archosaur has been described from early Hettangian strata in the town of Watchet in Somerset, England. While teleosaurid... 40 KB (4,068 words) - 03:12, 30 April 2024 |
of Pangea Area • Total 11,000,000 km2 (1.2×1014 sq ft) Dimensions • Length 5,000 km (3,100 mi) • Width 2,500 km (1,600 mi) Last eruption Hettangian... 24 KB (2,701 words) - 01:17, 1 April 2024 |
Early Jurassic period. They lived between 200 and 175 million years ago (Hettangian-Toarcian) in what is now Western Europe (England, France, Luxembourg,... 27 KB (2,952 words) - 17:18, 22 April 2024 |
Wartlike load casts in Hettangian arkoses from the northern Aquitaine Basin... 7 KB (866 words) - 09:11, 6 February 2024 |
−150 — – −145 — – Mesozoic T Jurassic K Late T Early Middle Late Early K Hettangian Sinemurian Pliensbachian Toarcian Aalenian Bajocian Bathonian Callovian... 8 KB (602 words) - 13:14, 28 February 2024 |
Changhsing. Olenekian Induan Anisian Ladinian Carnian Norian Rhaetian Hettangian Subdivision of the Triassic according to the ICS, as of 2021.... 17 KB (1,809 words) - 12:33, 8 August 2023 |