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Draconisella mortonii
Draconisella mortonii B. Granier, Lethiers Palaeont. Electr., 20(1.6A): 7. 17 Mar 2017
- Name
- Draconisella mortonii
- Rank
- Species
- Original spelling
- mortoni
- Generic Name
- [Genus] Draconisella
- Authors (Pub.)
- Granier B.
Lethiers A.
- Publication
- Draconisella mortoni sp. nov., a Mizzia-like Dasycladalean alga from the Lower Cretaceous of Oman [2017/3]
- Journal
- Palaeontologia Electronica
- Volume
- 20
- Issue
- 1.6A
- Page number
- 7
- Year
- 2017
- Fossil Status
- thallus (calcareous)
- Stratigraphy
- Hauterivian
- Location
- Wadi Al Fayn, 5 km N of Imti, 30 km NE of Nizwa, Oman
- Paleoregion
- Eurasia (Middle East)
Data for Holotypus
- Repository
- Université de Bretagne Occidentale, Département de Géologie, Laboratoire de Paléontologie, Brest, France
- Repository Number
- not specified; sample No 31
- Diagnosis
- This Dasycladalean alga exhibits a moniliform thallus with rather short articles on a rather thin and roughly tubular main axis. The calcareous
coating dismantled into discrete articles slightly lenticular (thinner than wider) with 4 (or even ? 5) whorls of 6–7 (or even ? 8) densely arranged phloiophorous to vesicular primary pores. The axial cavity of an article is slightly inflated in its median part from where all the laterals are inserted. The connection of the pores with the axial cavity is rather narrow. The pores widen rapidly in their proximal part to become roughly tubular, and
they widen again in their distal part to form a cortex. It is assumed the species is cladosporate. Besides, its gross shape measurements differentiate it from the other representatives of the genus.
