Iodes rigida C.Del Rio et De Franceschi in Del Rio, Stull & De Franceschi

Plant Fossil Names Registry Number: PFN000557

Act LSID: urn:lsid:plantfossilnames.org:act:557

Authors: C. Del Rio & D. De Franceschi

Rank: species

Reference: Del Rio, Stull & De Franceschi (2019): New species of Iodes fruits (Icacinaceae) from the early Eocene Le Quesnoy locality, Oise, France. – Review of Palaeobotany and Palynology 262: 60–71.

Page of description: 61

Illustrations or figures: fig. 1.1–12

Types

Holotype MNHN.F.44593., Muséum national d'histoire naturelle, Paris, France
Figures: fig. 1.1–5

Note: paratypes: MNHN.F.44547., 44548., 44555., 44557., 44558., 44560., 44561., 44563., 44564., 44565., 44566., 44567., 44568., 44570., 44572., 44573., 44575., 44577., 44578., 44579., 44580., 44581., 44582., 44583., 44584., 44585., 44586., 44587., 44588., 44589., 44590., 44591., 44592., 44594., 44595., 44596., 44597., 44598., 44599., 44600., 44601., 44602., 44603., 44604., 44606., 44607., 44608., 44609., 44610., 44611., 44612., 44613., 44615., 44616., 44617., 4618., 44619., 44620., 44621., 44622., 44623., 44624., 44625., 44626., 44627., 44629., 44630., 44631., 44632., 44633., 44635., 44637., 44640., 44641., 44642., 44645., 44646., 44647., 44649., 44650., 44651., 44653., 44654., 44655., 44656., 44657., 44658., 44659., 44661., 44662., 44663., 44665., 44666., 4667., 44670., 44672., 44673., 44674., 44675., 44678., 44679., 44680., 44681., 44683., 44684., 44685., 44686., 44688., 44689., 44690., 44691., 44692., 44693., 44695., 44697., 44698., 44699., 44703., 44711., 44712., 44713., 44714., 44716., 44717.

Original protologue

Endocarp bilaterally symmetrical, elliptical to ovate, occasionally globular, with a reticulate pattern of rectangular (I-Beam) ridges that delimit about 11 polygonal areoles on each face, with few or no freely ending ridgelets. A keel surrounds the endocarp in the plane of symmetry, with the thicker margin containing a vascular bundle embedded in the endocarp wall. Endocarp possessing an apical hole. Endocarp wall about 0.26–0.50 mm thick (excluding ridges; 0.43–0.58 mm including ridges). Inner endocarp surface densely covered with regularly spaced, sessile papillae, rounded in shape with small punctuations/depressions on the surface. Length of endocarp 3.72–9.29 mm, width 3.01–6.54 mm.

Etymology

From rigidus (L=rigid), in reference to the strong ridges of the endocarp structure.

Stratigraphy

Paleogene, Eocene, Ypresian

Locality

France
Le Quesnoy, Oise

Plant fossil remain

macro- and meso-fossils-embryophytes except wood