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Vetlugospermum rombicum
Vetlugospermum rombicum Naug. Geobios (Lyon), 45(5): 455. 13 Jul 2012
- Name
- Vetlugospermum rombicum
- Rank
- Species
- Generic Name
- [Genus] Vetlugospermum
- Authors (Pub.)
- Naugolnykh S. V.
- Publication
- Vetlugospermum and Vetlugospermaceae: A new genus and family of peltasperms from the Lower Triassic of Moscow syneclise (Russia) [2012/7]
- Journal
- Geobios
- Volume
- 45
- Issue
- 5
- Page number
- 455
- Year
- 2012
- Parent Taxon
- [Genus] Vetlugospermum
- Fossil Status
- fructifications
- Stratigraphy
- Induan
- Location
- Spasskoe, middle part of the Vetluga River Basin, left tributary of Volga riveer, Kirov region, Russian Federation
- Paleoregion
- Eurasia (Europe)
Data for Holotypus
- Repository
- Geological Institute, Russian Academy of Sciences, Moscow, Russian Federation
- Repository Number
- GIN 4851/163d
- Diagnosis
- Bilaterally symmetrical megasporophylls, bearing 10 to 12 seed scars around a central stalk. Seeds round to ovoid, slightly flattened, platyspermic, longitudinally ribbed, with narrow flat marginal limb formed by soft sarcotestal tissues. Abaxial surface of megasporophyll shield has wide shallow central depression. Adaxial surface of megasporophyll shield has well-developed ridge concentrically surrounding area where seed scars are located. Ridge consists of two symmetrical branches connected to each other in upper and lower margins of megasporophyll shield. Ridge separated from megasporophyll margin by wide horizontal limb oriented to ridge by right angle.
