Back
Cunninghamiostrobus minor
Cunninghamiostrobus minor Y.-J. Zheng, S.-L. Zheng, S.-W. Chen, L.-L. Kou, J. Zhang, X. Huang Kexue tongbao, 58(Supplement 1): 179. Dec 2013
- Name
- Cunninghamiostrobus minor
- Rank
- Species
- Generic Name
- [Genus] Cunninghamiostrobus
- Authors (Pub.)
- Zheng Y.-J.
Zheng S.-L.
Chen S.-W.
Kou L.-L.
Zhang J.
Huang X.
- Publication
- Nèiménggǔ wǎn zhū luó shì yīgè xīn de shān kē qiú guǒ [2013/12]
- Journal
- Kexue tongbao
- Volume
- 58
- Issue
- Supplement 1
- Page number
- 179
- Year
- 2013
- Fossil Status
- cones (ovuliferous)
- Stratigraphy
- Upper Jurassic
- Strat. comment
- Manketouebo Formation
- Location
- Xieheersde Hill, northeast of Baiyinbaoligao village, Daiqintala Township, Horqin Right Middle Banner, Inner Mongolia (112°35′10″E, 45°11′50″N)
- Paleoregion
- Eurasia (China)
Data for Holotypus
- Repository
- Shenyang Institute of Geology and Mineral Resources, Shenyang, China
- Repository Number
- Specimen IM002; Slide: 002-1-6
Data for Paratypus
- Repository
- Shenyang Institute of Geology and Mineral Resources, Shenyang, China
- Repository Number
- IM006, IM009; Slides: 006-1-3, 009-1
- Diagnosis
- Seed cones ellipsoidal, borne terminally and laterally; vascular cylinder of cone axis with false growth ring; pith cells heterogeneous; primary xylem endarch; secondary xylem lacking resin canals and xylem parenchyma; tracheids mostly with polygonal or circular bordered pits in biseriate alternate on radial walls, when uniseriate crowded; cortex parenchymatous with scattered fibers; cortical resin canals abundant; bract-scale complex dominated by bract, ovuliferous scale on adaxial side of lower one-half of bract, scale margins free from bract, proximal margin three-lobed; reversed seeds ovate and flat, three per ovuliferous scale. Leaf decurrent on stem, vascular strand minute, centrally located; resin canals three per leaf, two lateral, one medial and abaxial to vascular strand; transfusion tissue on each lateral side of vascular strand; palisade mesophyll on adaxial side of needle; hypodermal cells thick; stomatal zones on lateral sides of central vascular bundle, but stomata in detail and precise arrangement unknown.
