Pseudofrenelopsis salesii M.E.P.Bat., L.Kunzmann, Bezerra, J.A.F.G.Andrade, A.A.Sá et Loiola

Plant Fossil Names Registry Number: PFN003066

Act LSID: urn:lsid:plantfossilnames.org:act:3066

Authors: M. E. Peixoto Batista, L. Kunzmann, F. I. Bezerra, J. A. F. G. Andrade, A. A. Sá & M. I. B. Loiola

Rank: species

Genus:

Reference: Peixoto Batista, M. E., Kunzmann, L., Bezerra, F. I., Andrade, J. A. F. G., Sá, A. A. & Loiola, M. I. B. (2018): A new cheirolepidiaceous conifer Pseudofrenelopsis salesii sp. nov. from the Early Cretaceous of Brazil (Romualdo Formation, Araripe Basin): Paleoecological and taphonomic significance. – Review of Palaeobotany and Palynology 258: 154–162.

Page of description: 155

Types

Original diagnosis/description

Internodes with uniform size from the base to the top of each branch; one leaf per node completely encircling the stem (‘closed’ type), consecutive leaves of a branch form a simple helix. Free part of the leaf very small and triangular; adpressed to the stem. Stomatal com plex sunken, distributed throughout the whole abaxial leaf surface, and arranged in well-defined longitudinal rows that converge towards the leaf apex; the rows are separated by 2–4 rows of ordinary epidermal cells; within a row, stomata separated by 2–4 ordinary epidermal cells. Stomatal complex cyclocytic; 4–6 non-papillate, ellipsoid subsidiary cells converging towards the central region of each stoma; stomatal pores obliquely oriented; multilayered epidermis; ordinary epidermal cells bearing papillae. Multilayered hypodermis composed of elongated cells; xylem containing tracheids often with areolate pits.

Etymology

The specific epithet is named after the paleontologist Dr. Alexandre Sales, who carried out paleontological research in the Araripe
Basin, in particular on the Romualdo Formation fossils and passed away in 2016.

Stratigraphy

Cretaceous, Lower Cretaceous, Aptian
Lower Cretaceous (Albian), Romualdo Formation of the Araripe Basin.

Locality

Brazil
Locality unknown, Ceará State, northeastern Brazil.
The precise geographic provenance of the specimen CPCA 3698 is unknown due to its acquisition through seizure by the Departamento
Nacional de Produção Mineral (DNPM, Crato, Brazil). However, the matrix enclosing the holotype is quite similar to that of the concretions
from the Romualdo Formation, regarding the color and texture, and, as such, the specimen can be considered as coming from that formation.