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Trochodendron
''Trochodendron'' is a genus of flowering plants with one living species, ''Trochodendron aralioides'', and six extinct species known from the fossil record. It was often considered the sole genus in the family Trochodendraceae, though botanists now also include the distinct genus '' Tetracentron'' in the family. Species * ''Trochodendron aralioides'' *†'' Trochodendron beckii'' *†'' Trochodendron drachukii'' (Infructescence; Ypresian, McAbee Fossil Beds, British Columbia) *†'' Trochodendron evenense'' (Leaves; Miocene, Kamchatka) *†'' Trochodendron infernense'' (Infructescence; Late Palaeocene, Fort Union Formation) *†'' Trochodendron kamtschaticum'' (Infructescence; Miocene, Kamchatka) *†''Trochodendron nastae'' (Leaves; Ypresian, Klondike Mountain Formation, Washington state) *†'' Trochodendron postnastae'' (Leaves; Langhian, Moose Mountain Flora, Oregon) *†'' Trochodendron protoaralioides'' (Leaves; late Miocene, Japan) *†'' Trochodendron rosayi'' (Infructe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trochodendron Kamtschaticum
''Trochodendron'' is a genus of flowering plants with one living species, ''Trochodendron aralioides'', and six extinct species known from the fossil record. It was often considered the sole genus in the family Trochodendraceae, though botanists now also include the distinct genus '' Tetracentron'' in the family. Species * ''Trochodendron aralioides'' *†'' Trochodendron beckii'' *†'' Trochodendron drachukii'' (Infructescence; Ypresian, McAbee Fossil Beds, British Columbia) *†'' Trochodendron evenense'' (Leaves; Miocene, Kamchatka) *†'' Trochodendron infernense'' (Infructescence; Late Palaeocene, Fort Union Formation) *†'' Trochodendron kamtschaticum'' (Infructescence; Miocene, Kamchatka) *†''Trochodendron nastae'' (Leaves; Ypresian, Klondike Mountain Formation, Washington state) *†'' Trochodendron postnastae'' (Leaves; Langhian, Moose Mountain Flora, Oregon) *†'' Trochodendron protoaralioides'' (Leaves; late Miocene, Japan) *†'' Trochodendron rosayi'' (Infructe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trochodendron Infernense
''Trochodendron'' is a genus of flowering plants with one living species, ''Trochodendron aralioides'', and six extinct species known from the fossil record. It was often considered the sole genus in the family Trochodendraceae, though botanists now also include the distinct genus '' Tetracentron'' in the family. Species * ''Trochodendron aralioides'' *†'' Trochodendron beckii'' *†'' Trochodendron drachukii'' (Infructescence; Ypresian, McAbee Fossil Beds, British Columbia) *†'' Trochodendron evenense'' (Leaves; Miocene, Kamchatka) *†'' Trochodendron infernense'' (Infructescence; Late Palaeocene, Fort Union Formation) *†''Trochodendron kamtschaticum'' (Infructescence; Miocene, Kamchatka) *†''Trochodendron nastae'' (Leaves; Ypresian, Klondike Mountain Formation, Washington state) *†'' Trochodendron postnastae'' (Leaves; Langhian, Moose Mountain Flora, Oregon) *†''Trochodendron protoaralioides'' (Leaves; late Miocene, Japan) *†''Trochodendron rosayi'' (Infructesce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trochodendron Beckii
''Trochodendron'' is a genus of flowering plants with one living species, ''Trochodendron aralioides'', and six extinct species known from the fossil record. It was often considered the sole genus in the family Trochodendraceae, though botanists now also include the distinct genus '' Tetracentron'' in the family. Species * ''Trochodendron aralioides'' *†'' Trochodendron beckii'' *†'' Trochodendron drachukii'' (Infructescence; Ypresian, McAbee Fossil Beds, British Columbia) *†'' Trochodendron evenense'' (Leaves; Miocene, Kamchatka) *†''Trochodendron infernense'' (Infructescence; Late Palaeocene, Fort Union Formation) *†''Trochodendron kamtschaticum'' (Infructescence; Miocene, Kamchatka) *†''Trochodendron nastae'' (Leaves; Ypresian, Klondike Mountain Formation, Washington state) *†'' Trochodendron postnastae'' (Leaves; Langhian, Moose Mountain Flora, Oregon) *†''Trochodendron protoaralioides'' (Leaves; late Miocene, Japan) *†''Trochodendron rosayi'' (Infructescen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trochodendron Protoaralioides
''Trochodendron'' is a genus of flowering plants with one living species, ''Trochodendron aralioides'', and six extinct species known from the fossil record. It was often considered the sole genus in the family Trochodendraceae, though botanists now also include the distinct genus ''Tetracentron'' in the family. Species * ''Trochodendron aralioides'' *†''Trochodendron beckii'' *†''Trochodendron drachukii'' (Infructescence; Ypresian, McAbee Fossil Beds, British Columbia) *†''Trochodendron evenense'' (Leaves; Miocene, Kamchatka) *†''Trochodendron infernense'' (Infructescence; Late Palaeocene, Fort Union Formation) *†''Trochodendron kamtschaticum'' (Infructescence; Miocene, Kamchatka) *†''Trochodendron nastae'' (Leaves; Ypresian, Klondike Mountain Formation, Washington state) *†''Trochodendron postnastae'' (Leaves; Langhian, Moose Mountain Flora, Oregon) *†''Trochodendron protoaralioides'' (Leaves; late Miocene, Japan) *†''Trochodendron rosayi'' (Infructescence; La ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trochodendron Evenense
''Trochodendron'' is a genus of flowering plants with one living species, ''Trochodendron aralioides'', and six extinct species known from the fossil record. It was often considered the sole genus in the family Trochodendraceae, though botanists now also include the distinct genus '' Tetracentron'' in the family. Species * ''Trochodendron aralioides'' *†''Trochodendron beckii'' *†'' Trochodendron drachukii'' (Infructescence; Ypresian, McAbee Fossil Beds, British Columbia) *†'' Trochodendron evenense'' (Leaves; Miocene, Kamchatka) *†''Trochodendron infernense'' (Infructescence; Late Palaeocene, Fort Union Formation) *†''Trochodendron kamtschaticum'' (Infructescence; Miocene, Kamchatka) *†''Trochodendron nastae'' (Leaves; Ypresian, Klondike Mountain Formation, Washington state) *†'' Trochodendron postnastae'' (Leaves; Langhian, Moose Mountain Flora, Oregon) *†''Trochodendron protoaralioides'' (Leaves; late Miocene, Japan) *†''Trochodendron rosayi'' (Infructescenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trochodendraceae
Trochodendraceae is the only family of flowering plants in the order Trochodendrales. It comprises two extant genera, each with a single species along with up to five additional extinct genera and a number of extinct species. The living species are native to south east Asia. The two living species (''Tetracentron sinense'' and ''Trochodendron aralioides'') both have secondary xylem without vessel elements, which is quite rare in angiosperms. As the vessel-free wood suggests primitiveness, these two species have attracted much taxonomic attention. Description ''Tetracentron'' and ''Trochodendron'' are deciduous or evergreen trees, which grow to between tall, with ''Trochodendron'' sometimes sporting umbrella-shaped branches. * Leaves in spirals at the end of the branches (umbrella-like appearance, ''Trochodendron'') or separate ('' Tetracentron''), simple, serrulate or crenulate, with clorantoid teeth, palmately or pinnately divided, brochidodromous or actinodromous, ovate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trochodendron Rosayi
''Trochodendron rosayi'' is an extinct species of flowering plant in the family Trochodendraceae. The species is known from fossils found in Middle Miocene deposits of central Oregon. ''T. rosayi'' are possibly the fruits belonging to the extinct trochodendraceous leaf species '' Trochodendron postnastae''. Distribution and paleoenvironment ''Trochodendron rosayi'' fossils are found in the Moose Mountain Flora, formerly called the Cascadia flora or Menagerie Wilderness flora, of Linn County, Oregon. The flora is included in the Little Butte Volcanic series outcropping near the town of Cascadia in the central Oregon Cascades. Work on the flora by paleobotanist Jack Wolfe in 1964 gave an estimated age of Early Miocene, this was later revised by Wolfe and Tanai in 1987 to a Late Oligocene estimation. In the descriptive paper naming ''T. postnastae'' Manchester ''et al'' reported that radioisotope dating of plagioclase crystals collected by Robert Rosé from the fossilifrous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trochodendron Nastae
''Trochodendron nastae'' is an extinct species of flowering plant in the family Trochodendraceae known from fossil leaves found in the early Eocene Ypresian stage Klondike Mountain Formation deposits of northern Washington state. ''T. nastae'' is one of the oldest members of the genus ''Trochodendron'', which includes the living species '' T. aralioides'', native to Japan, southern Korea and Taiwan and the coeval extinct species '' T. drachukii'' from the McAbee Fossil Beds near Cache Creek, British Columbia. Taxonomy Description of the new species by Dr. Kathleen B. Pigg, Wesley Wehr, and Stefanie Ickert-Bond was based on the study of 11 complete and 55 partial compression fossil specimens with the holotype specimen, number "SR 98-02-01", being housed in the Stonerose Interpretive Center, Republic, Washington. They published their 2001 type description of the species in the ''International Journal of Plant Sciences'' volume number 162. and named the species ''nastae'' in honor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trochodendron Postnastae
''Trochodendron postnastae'' is an extinct species of flowering plant in the family Trochodendraceae. The species is known from fossils found in Middle Miocene deposits of central Oregon. ''T. postnastae'' are possibly the leaves belonging to the extinct trochodendraceous fruits ''Trochodendron rosayi''. Distribution and paleoenvironment ''Trochodendron postnastae'' fossils were found in the Moose Mountain Flora, formerly called the Cascadia flora or Menagerie Wilderness flora, of Linn County, Oregon. The flora is included in the Little Butte Volcanic series outcropping near the town of Cascadia in the central Oregon Cascades. Work on the flora by paleobotanist Jack Wolfe in 1964 gave an estimated age of Early Miocene, this was later revised by Wolfe and Tanai in 1987 to a Late Oligocene estimation. In the descriptive paper naming ''T. postnastae'' Manchester ''et al'' reported that radioisotope dating of plagioclase crystals collected by Robert Rosé from the fossilifro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Klondike Mountain Formation
The Klondike Mountain Formation is an Early Eocene (Ypresian) geological formation located in the northeast central area of Washington state. The formation, named for the type location designated in 1962, Klondike Mountain north of Republic, Washington, is composed of volcanic rocks in the upper unit and volcanics plus lacustrine (lakebed) sedimentation in which a lagerstätte with exceptionally well-preserved plant and insect fossils has been found, along with fossil epithermal hot springs. The formation is the youngest in a group of formations which belong to the Challis Sequence rocks. The formation unconformably overlies rocks of the Eocene Sanpoil Volcanics and much older Triassic and Permian formations. The formation is bounded on its edges by a series of high-angle strike slip faults, which have contained the Klondike Mountain Formation in a series of graben structures, such as the Republic Graben. Public access to a fossiliferous outcrop at the north end of Republic is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trochodendron Drachukii
''Trochodendron drachukii'' is an extinct species of flowering plants in the family Trochodendraceae known from a fossil fruiting structure found in the early Ypresian age Eocene fossils found in British Columbia, Canada. ''T. drachukii'' is one of the oldest members of the genus ''Trochodendron'', which includes the living species '' T. aralioides'', native to Japan, southern Korea and Taiwan and the coeval extinct species '' T. nastae'' from Washington state, United States. History and classification Description of the new species by Dr. Kathleen Pigg, Richard Dillhoff, Melanie DeVore and Wesley Wehr was based on the study of a single complete fruiting structure specimen. The holotype fossil, number " UWBM 97819", being housed in the Burke Museum of Natural History and Culture, Seattle, Washington. They published their 2007 type description of the species in the ''International Journal of Plant Sciences'' volume number 168 and named the species ''drachukii'' in honor of Rober ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trochodendron Aralioides
''Trochodendron aralioides'', sometimes colloquially called wheel tree, is a flowering plant and the sole living species in the genus ''Trochodendron'', which also includes several extinct species. It was also often considered the sole species in the family Trochodendraceae, though botanists now include the distinct genus '' Tetracentron'' in the same family. ''T.aralioides'' is native to Japan, southern Korea and Taiwan. Growing in lower temperate montane mixed forests in Japan, and broad-leaved evergreen forest in the central mountain ranges and Northern parts of Taiwan. Description It is an evergreen tree or large shrub growing to 20 m tall. The leaves are borne in tight spirals at the apex of the year's growth, each leaf leathery dark green, simple broad lanceolate, 6–14 cm long and 3–8 cm broad, with a crenate margin. The flowers are produced 10–20 together in a racemose cyme 5–13 cm diameter; each flower is 15–18 mm diameter, yellowish green, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
