Regnellites nagashimae Tosh.Yamada et M.Kato

Plant Fossil Names Registry Number: PFN002351


Authors: T. Yamada & M. Kato

Rank: species

Genus: Regnellites Tosh.Yamada et M.Kato

Reference: Yamada, T. & Kato, M. (2002): Regnellites nagashimae gen. et sp. nov., the oldest macrofossil of Marsileaceae, from the Upper Jurassic to Lower Cretaceous of western Japan. – International Journal of Plant Sciences 163(5): 715–723., link

Page of description: 716

Illustrations or figures: figs 2, 3

Name is type for

Regnellites Tosh.Yamada et M.Kato 2002


Holotype NSM-PP-9944, National Museum of Nature and Science, Tokyo, Japan
Figures: fig. 2A

Note: Paratype: NSM-PP-9945 (figs 2C, 3B), housed in National Museum of Nature and Science, Tokyo, Japan.

Original diagnosis/description

Petioles very short, 1.2–1.5 cm long, 2.5–3.0 mm thick. Leaflets flabelliform, entire. Sporocarps single per leaf, borne at node, hairy, round to elliptic, 0.8–1.2 cm long, 0.5–0.7 cm wide, without bumps at the base. Peduncles very short, vertical to sporocarps.


Commemorating the late fossil collector, Fuhito Nagashima, who first discovered this fossil at the locality.


Cretaceous, Lower Cretaceous, Berriasian
Upper Jurassic to Berriasian Kiyosue Formation.


Locality 102 (34°05ʹN, 131°00ʹE) on Nakao Forestry Road, Shimonoseki, Yamaguchi Prefecture

Plant fossil remain

macro- and meso-fossils-embryophytes except wood


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