Rhus asymmetrica

Name

Rhus asymmetrica

Rank

Species

Generic Name

[Genus] Rhus

Authors (Pub.)

Tosal A. Sanjuan J. Martín-Closas C.  

Publication

Foliar adaptations of Rhus asymmetrica sp. nov. from the Oligocene of Cervera (Catalonia, Spain). Palaeoclimatic implications [2018/11]

Journal

Review of Palaeobotany and Palynology

Annee/Jahrgang

2019

Volume

261

Page number

69

Year

2018

Fossil Status

leaves

Stratigraphy

Rupelian

Strat. comment

32.4 Ma

Location

Sant Pere dels Arquells site, Cervera, eastern Ebro Basin, comarca of Segarra, Province of Lleida, Autonomous Community of Catalonia, Spain

Paleoregion

Eurasia (Europe)

Data for Holotypus

Repository

Sorbonne Université, Faculté des Sciences et Ingénierie, Paris, France

Repository Number

UPMC n5737a

Num

2

Pub.

Foliar adaptations of Rhus asymmetrica sp. nov. from the Oligocene of Cervera (Catalonia, Spain). Palaeoclimatic implications [2018/11]

Data for Paratypus

Repository

Museu de Ciències Naturals de Barcelona, Barcelona, Spain

Repository Number

MGB 84946–MGB 84948 (Plate I, 1–3); MGB 84964-MGB 84967 (Plate II, 1–4)

Num

Plate I, 1–3; Plate II, 1–4

Pub.

Foliar adaptations of Rhus asymmetrica sp. nov. from the Oligocene of Cervera (Catalonia, Spain). Palaeoclimatic implications [2018/11]

Diagnosis

Trifoliate leaves. Apical leaflet symmetric and elliptic in shapewith a serrate margin, largely decurrent base, no petiolule and an acute apex. Primary venation of the apical leaflet pinnate. Secondary vein framework craspedodromous, without branching. Major secondary vein attachment to the midvein decurrent. Intercostal tertiary vein fabric irregular reticulate. Exterior tertiary course andmarginal ultimate venation looped. Lateral leaflets basal asymmetric and ovate in shape, with an unequally serrate margin, rounded base in the distal part and concave or straight base proximally, no petiolule and an acute apex. Primary vein framework of the lateral leaflet pinnate with only one basal vein. Secondary venation pattern craspedodromous. One of the first secondary vein pairs basal. Attachment of secondary veins to the midvein decurrent. Intercostal tertiary vein fabric irregular reticulate. Exterior tertiary course and marginal ultimate venation looped.