Amersinia littletonensis

Name

Amersinia littletonensis

Rank

Species

Generic Name

[Genus] Amersinia

Authors (Pub.)

Huegele I. B. Manchester S. R.  

Publication

An Early Paleocene carpoflora from the Denver Basin of Colorado, USA, and its implications for plant-animal interactions and fruit size evolution [2020/5]

Journal

International Journal of Plant Sciences

Volume

181

Issue

6

Page number

649

Year

2020

Fossil Status

fruits (endocarps)

Stratigraphy

Selandian

Location

Littleton, Colorado, USA

Paleoregion

America (North)

Data for Holotypus

Repository

Denver Museum of Nature and Science, DMNH, Denver, USA

Repository Number

DMNH EPI.49347

Num

2 A-C

Pub.

An Early Paleocene carpoflora from the Denver Basin of Colorado, USA, and its implications for plant-animal interactions and fruit size evolution [2020/5]

Diagnosis

Endocarp ovoid to fusiform, 2.9–12 mm long and 1.9–6.3 mm wide, length-to-width ratio 1.2–3.1, pointed basally, rounded or pointed apically with an apical stylar protrusion and a weak subapical collar (formed by an epigynous perianth), tetralocular, 1–4 ridges per germination valve. Ovate to lensoidal in longitudinal section, square or rectangular to elliptical in transverse section. Germination valve one per locule, opening apically, hinging basally from, near, or just below apical upper half of endocarp. Locules trapezoidal to subtriangular in transverse section. Wall uniformly thick, ca. 0.2–1.0 mm (average, 0.6 mm).