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Thyrsopteris cyathindusia
Thyrsopteris cyathindusia C. Shi, H.-R. Zhang, Shuo Wang in H.-R. Zhang, C. Shi, X.-X. Long, Q. Feng, H.-H. Cai, Y.-T. Lü, Shuo Wang Palaeoworld, 31(3): 479. 16 Sep 2021
- Name
- Thyrsopteris cyathindusia
- Rank
- Species
- Generic Name
- [Genus] Thyrsopteris
- Authors (Name)
- Shi C.
Zhang H.-R.
Wang S.
- Authors (Pub.)
- Zhang H.-R.
Shi C.
Long X.-X.
Feng Q.
Cai H.-H.
Lü Y.-T.
Wang S.
- Publication
- A new fossil record of Thyrsopteridaceae (Cyatheales) from the
Mid-Cretaceous amber of Myanmar [2021/9]
- Journal
- Palaeoworld
- Volume
- 31
- Issue
- 3
- Page number
- 479
- Year
- 2021
- Fossil Status
- foliage (fertile)
- Stratigraphy
- Cenomanian
- Location
- Hukawng Valley, northern Myanmar (2616010.200N, 9633047.500
E)
- Paleoregion
- Eurasia (Indochina)
Data for Holotypus
- Repository
- Qingdao University of Science and Technology, Qingdao, China
- Repository Number
- QUST-AM10321
- Diagnosis
- Laminar segment dissection obviously reduced
at fertile part along sori, coarsely crenate. Veins free and
not forked. Cyathiform indusia on the ends of terminal
veinlets, four in total, indusia symmetrical, membranous.
Indusia strongly differentiated from laminar segment, ridge
extension slightly upward at the basal inner indusium.
Columnar receptacle elevated, longitudinally elongated,
gradually tapered at its top. Sorus attached to the receptacle,
sporangia with slightly oblique annuli.
