Arlenea delicata A.M.N.Ribeiro, Yang, A.A.F.Saraiva, Bantim, Junior et F.J.Lima

Plant Fossil Names Registry Number: PFN003163

Act LSID: urn:lsid:plantfossilnames.org:act:3163

Authors: A. M. N. Ribeiro, Y. Yang, A. Á. F. Saraiva, R. A. M. Bantim, J. T. C. Junior & F. J. de Lima

Rank: species

Genus: Arlenea A.M.N.Ribeiro, Y.Yang bis, A.A.F.Saraiva, Bantim, Junior et F.J.Lima in Ribeiro, Yang, Saraiva, Bantim, Junior & Lima

Reference: Ribeiro, A. M. N., Yang, Y., Saraiva, A. Á. F., Bantim, R. A. M., Junior, J. T. C. & Lima, F. J. de (2023): Arlenea delicata gen. et sp. nov., a new ephedroid plant from the Early Cretaceous Crato Formation, Araripe Basin, Northeast Brazil. – Plant Diversity 46: 362–371., link

Page of description: 364

Illustrations or figures: figs. 2-5

Name is type for

Types

Original diagnosis/description

Reproductive branches fertile, aphyllous, with terminal female cones, sympodial branching system, in- ternodes longitudinally striated, with swollen nodes, from which 2e3 ramifications depart. Opposite branches of phyllotaxis. Solitary and terminal reproductive structures with oblong-oval to ovoid shape and apparently obtuse to cuspidate apex, show swollen receptacle, two pairs of bracts surrounding two ovals inner chla- mydosperms, possibly longitudinally striated. Elongated ovoid to oblong-oval seed shape.

Etymology

The epithet “delicata” reflects the delicate terminal branches that contain terminal reproductive structures.

Stratigraphy

Cretaceous, Lower Cretaceous
Crato Formation, Lower Cretaceous.

Locality

Brazil
Araripe Basin, Northeast Brazil