Additional data on Todites (Osmundaceae) from the Lower Jurassic— with special references to the paleogeographical and stratigraphical distributions in China

Yongdong Wang (1, 2) , Zhengyao Cao (1) , Frédéric Thévenard (3)

1 NIGPAS-CAS - Nanjing Institute of Geology and Palaeontology
2 Institut für Geowissenschaften,
3 PEPS - PaleoEnvironnements et PaleobioSphere

Additional material of Todites (Osmundaceae) from the Lower Jurassic Xiangshan Group in Jiangsu and Anhui Provinces, Eastern China is investigated. Five species of Todites are described based on collections (including sterile and fertile pinnae) from eight localities along the Yangtze River, including Todites denticulatus (Brongniart) Krasser, Todites cf. goeppertianus (Muenster) Krasser, Todites nanjingensis sp. nov., Todites princeps (Presl) Gothan and Todites sp. Material of T. denticulatus and T. nanjingensis sp. nov. contains further data of the fertile pinnae. The stratigraphical ranges and the geographical distribution of the genus Todites in China are discussed and reviewed. Available data show that Todites mostly occurs in the Late Triassic to Middle Jurassic of China. The genus was widely distributed in both the Northern and Southern Floristic Provinces of China, and especially abundant and diverse in the Southern Floristic Province.

Mots clés: Osmundaceae; Todites; Paleogeographical distribution; Early Jurassic; China

Domaines: Paléontologie; Stratigraphie

Yongdong Wang, Zhengyao Cao, Frédéric Thévenard. Additional data on Todites (Osmundaceae) from the Lower Jurassic— with special references to the paleogeographical and stratigraphical distributions in China. Geobios, 2005, 38, pp.823 - 841. ⟨10.1016/j.geobios.2004.06.005⟩. ⟨hal-00179701⟩