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Selaginella jorelisiae A. G. López-García, A. R. Schmidt & L. Regalado, 2025

López-García, Ana G., Schmidt, Alexander R., Serguera, Maité & Regalado, Ledis, 2025, First record of Selaginella from Miocene amber, Fossil Record 28 (1), pp. 57-66 : 57-66

publication ID

 https://doi.org/10.3897/fr.28.e138310

publication LSID

 lsid:zoobank.org:pub:83ABC5F9-8B75-4311-8A3F-5C2EBBB6D06F

DOI

 https://doi.org/10.5281/zenodo.14901408

persistent identifier

https://treatment.plazi.org/id/67DF68F3-D94B-519D-BD18-CAE6A8F33692

treatment provided by

by Pensoft

scientific name

 Selaginella jorelisiae A. G. López-García, A. R. Schmidt & L. Regalado
status

sp. nov.

Selaginella jorelisiae A. G. López-García, A. R. Schmidt & L. Regalado sp. nov.

Holotype.

Amber World Museum ( Museo Mundo de Ámbar ), Santo Domingo, Dominican Republic, collection number AWMJC 010004 [Figs 1 View Figure 1 , 2 View Figure 2 ] (only specimen available). The amber specimen is being arranged for integration into the amber collection of the Museo Nacional de Historia Natural “ Prof. Eugenio de Jesús Marcano, ” Santo Domingo, Dominican Republic.

Etymology.

The specific epithet honors Ms. Jorelis Caridad, Amber World Museum ( Dominican Republic), for supporting our research by making the amber inclusion available for study.

Stratigraphic and geographic range.

Lower to early Middle Miocene amber-bearing sediments of the Dominican Republic, approximately 15 to 20 Myr old (Iturralde-Vinent and MacPhee 1996, 2019).

Diagnosis.

Dorsal trophophylls ovate, symmetric, base rounded (Figs 1 B, C View Figure 1 , 2 A View Figure 2 ), slightly carinate, apex aristate (Fig. 1 B, C View Figure 1 ) and minutely serrate, margins with scattered teeth or cilia. Ventral trophophylls elliptic (Figs 1 D View Figure 1 , 2 B View Figure 2 ), base slightly asymmetric, rounded on both sides, with the basiscopic side more developed, apex apiculate (Figs 1 D View Figure 1 , 2 B View Figure 2 ), margins with the acroscopic proximal third ciliate (Figs 1 E View Figure 1 , 2 B View Figure 2 ), the basiscopic proximal third nearly entire or minutely serrate, and the medial and distal thirds serrate (Figs 1 F View Figure 1 , 2 B View Figure 2 ).

Description.

Rhizophores not preserved. Main stem once branched, branches of 12 and 8.8 mm length. Trophophylls dimorphic (Figs 1 View Figure 1 , 2 View Figure 2 ). Axillary trophophylls not preserved. Dorsal trophophylls symmetric, distant, ascending, 0.80–0.98 × 0.2–0.32 mm, ovate (Figs 1 B, C View Figure 1 , 2 A View Figure 2 ), base rounded, slightly carinate, apex aristate and minutely serrate (arista 0.27–0.35 mm long, approximately 1 / 3 of the dorsal trophophyll length, Fig. 1 B, C View Figure 1 ), margins with scattered teeth or cilia (Fig. 2 A View Figure 2 ). Ventral trophophylls close to imbricate, ascending, 1.20–1.45 × 0.45–0.62 mm, elliptic, base slightly asymmetric, rounded on both sides (Figs 1 D View Figure 1 , 2 B View Figure 2 ), with the basiscopic side more developed, apex apiculate (Fig. 1 D View Figure 1 ), margins of the acroscopic proximal third ciliate (Fig. 1 E View Figure 1 ), the basiscopic proximal third nearly entire or minutely serrate, and the medial and distal thirds serrate (Fig. 1 F View Figure 1 ), cilia 60–100 µm in length, teeth 15–40 µm. Epidermis of trophophylls not preserved. Strobili not preserved.

Specimens