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Prisca reynoldsii
Prisca reynoldsii Retallack, Dilcher Palaeontographica, Abt. B, Paläophytol., 179(5-6): 107. Nov 1981
- Name
- Prisca reynoldsii
- Rank
- Species
- Generic Name
- [Genus] Prisca
- Authors (Pub.)
- Retallack G.
Dilcher D. L.
- Publication
- Early angiosperm reproduction: Prisca reynoldsii gen. et sp. nov. from Mid-Cretaceous coastal deposits in Kansas, USA [1981/11]
- Journal
- Palaeontographica
- Volume
- 179
- Issue
- 5-6
- Page number
- 107
- Year
- 1981
- Fossil Status
- inflorescences
- Stratigraphy
- Cenomanian
- Strat. comment
- upper Dakota Formation
- Location
- In the upper bench at the southern end of the northern clay pit, southwest of Hoisington, Kansas, USA
- Paleoregion
- America (North)
Data for Holotypus
- Repository
- Indiana University, Bloomington, USA
- Repository Number
- lU15706-3042 and its counterpart lU15706-3042'
- Diagnosis
- Prisca with slender (1.0-1.2 mm diameter) raceme axis, multifollicles alternate, distantly (13-14 mm apart) spaced, bractc',1te; bracts up to 5.9 mm long, with subacute apex and with prominent open, reticulate venation; multifollicles elongate, consisting of slender pedicel, 0.8-1.4 rom in diameter and 13.8-43.7 mm long, and an elongate receptacle, 0.4-1.7 mm wide and 50.4-73.4 mm long, bearing 50-90 follicles arranged in a close helix; follicle subcarnose, subglobular to ellipsoidal when infolded 1.8-3.6 mm long, 1.43.1 mm wide, subrectangular with prominent involute margin and lateral sinuses when opened out flat, attached by short, pseudostipitate base to receptacle; seeds 2-6, ellipsoidal, 0.6-1.1 mm long. 0.3-0.7 mm wide, bitegmic, orthOtr0POllS, attached to involute margin of follicle by short funicle. Cuticles of pedicel, carpel walls and omer cuticle of outer integument of seed all thick (1-5 ,um), with straight, wide (1-8,um) cuticular flanges delineating epidermal cells and scattered, sunken, brachyparacytic stomata (12-24,um long by 22-42 ,urn wide) and rare, scattered, radially arranged cells of possible hair hases; inner cuticles of seed thinner (1-3 ,Lim), prominently wrinkled, defining a prominent conical pollen chamber inside the micropyle; nuceJlar cuticle thin (1-2 jlm) with indistinct cellular outlines; innermost membrane thin (1-3 ,urn), structureless, enclosing convolutoed, translucent, dark organic material.
