We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
A new species of the extinct genus Austrohamia (Cupressaceae s.l.) in the Daohugou Jurassic flora of China and its phytogeographical implications.
- Authors
ZHANG, Jian-Wei; D'ROZARIO, Ashalata; WANG, Li-Jun; LI, Ya; YAO, Jian-Xin
- Abstract
A new conifer, Austrohamia acanthobractea, sp. nov., is described from the Jurassic Daohugou flora, Inner Mongolia Autonomous Region, China. The material consists of impressions represented by well-preserved leafy twigs and branches as well as ovulate cones. Leafy shoots with at least two orders of branching; ultimate branchlets alternate or sub-opposite with helically arranged leaves, decurrent at base with distal rounded tip; dorsiventrally flattened and univeined. Ovuliferous cones elliptical, less than 1 cm long, terminally borne on ultimate and penultimate branches, composed of helically arranged bracts with ovules disposed on their adaxial surfaces. The presence of similar, if not identical taxa, on both sides of the Pacific indicates the cosmopolitan distribution of primitive Cupressaceae between East Asia (Eurasia) and South America in the Pangaea.
- Subjects
INNER Mongolia (China); CHINA; CONIFERS; CUPRESSACEAE; JURASSIC paleoecology; PHYTOGEOGRAPHY; PANGAEA (Supercontinent)
- Publication
Journal of Systematics & Evolution, 2012, Vol 50, Issue 1, p72
- ISSN
1674-4918
- Publication type
Article
- DOI
10.1111/j.1759-6831.2011.00165.x