scholarly journals New hyaenodonts (Mammalia) from the late Ypresian locality of Prémontré (France) support a radiation of the hyaenodonts in Europe already at the end of the early Eocene

Geobios ◽  
2021 ◽  
Author(s):  
Floréal Solé ◽  
Michael Morlo ◽  
Tristan Schaal ◽  
Thomas Lehmann
Keyword(s):  
Early Eocene ◽  
Late Ypresian

scholarly journals Tetraliidae and Trapeziidae (Crustacea, Decapoda, Brachyura) from the Early Eocene of Monte Magrè (Vicenza, NE Italy)

2013 ◽  
Vol 154 (1) ◽  
pp. 25
Author(s):  
Antonio De Angeli ◽  
Loris Ceccon
Keyword(s):  
Fossil Record ◽  
Early Eocene ◽  
Decapod Crustaceans ◽  
Ne Italy ◽  
Late Ypresian

The decapod crustaceans of the families Tetraliidae and Trapeziidae from the Early Eocene (middle-late Ypresian) of Monte Magrè (Schio, Vicenza, NE Italy), are described. The specimens are assigned to <em>Eurotetralia loerenthey</em> (Müller, 1975) n. gen., <em>Tetralia vicetina</em> n. sp. (Tetraliidae Castro, Ng &amp; Ahyong, 2004); <em>Archaeotetra lessinea</em> n. sp., <em>Eomaldivia trispinosa</em> Müller &amp; Collins, 1991, <em>Paratetralia convexa</em> Beschin, Busulini, De Angeli &amp; Tessier, 2007, and <em>Paratetralia sulcata</em> n. sp. (Trapeziidae Miers, 1886).<br />The specimens were discovered associated with other decapods, in the coral-rich limestone. This report is the oldest fossil record of both two families. The stratigraphical distribution of the Tetraliidae and Trapeziidae is extended back to the middle-late Ypresian.

scholarly journals New Data on the Turtles from the Early Eocene of Kirghizia

2011 ◽  
Vol 4 (1) ◽  
pp. 40-45 ◽  
Author(s):  
Igor G. Danilov ◽  
Alexander O. Averianov
Keyword(s):  
Sea Turtles ◽  
Sea Turtle ◽  
Early Eocene ◽  
New Material ◽  
Late Ypresian

Based on new material from the Andarak 2 locality in southern Kirghizia (early Eocene, late Ypresian), the testudinid Ergilemys vialovi Ckhikvadze, 1984, is assigned to the subgenus Hadrianus Cope, 1872, of the genus Manouria Gray, 1852. Part of the humerus of the oldest known cheloniine sea turtle is described from the same locality. The cheloniine sea turtles might have evolved during the Ypresian, an interval during which Cenozoic sea turtles were exceptionally diverse.

Morphology and Affinities of Ampelocissites Seeds (Vitaceae: Ampelopsis clade) from the Paleogene of Texas, USA

2020 ◽  
Vol 45 (3) ◽  
pp. 478-482
Author(s):  
Steven R. Manchester
Keyword(s):  
Computed Tomography ◽  
Cross Sections ◽  
Seed Coat ◽  
Ct Scanning ◽  
Seed Morphology ◽  
Early Eocene ◽  
Micro Computed Tomography ◽  
X Ray ◽  
Fossil Seeds ◽  
Fossil Genus

Abstract—The type material on which the fossil genus name Ampelocissites was established in 1929 has been reexamined with the aid of X-ray micro-computed tomography (μ-CT) scanning and compared with seeds of extant taxa to assess the relationships of these fossils within the grape family, Vitaceae. The specimens were collected from a sandstone of late Paleocene or early Eocene age. Although originally inferred by Berry to be intermediate in morphology between Ampelocissus and Vitis, the newly revealed details of seed morphology indicate that these seeds represent instead the Ampelopsis clade. Digital cross sections show that the seed coat maintains its thickness over the external surfaces, but diminishes quickly in the ventral infolds. This feature, along with the elliptical chalaza and lack of an apical groove, indicate that Ampelocissites lytlensis Berry probably represents Ampelopsis or Nekemias (rather than Ampelocissus or Vitis) and that the generic name Ampelocissites may be useful for fossil seeds with morphology consistent with the Ampelopsis clade that lack sufficient characters to specify placement within one of these extant genera.

An early Eocene florule from central Texas

1925 ◽  
pp. 87-92
Author(s):  
Edward Wilber Berry
Keyword(s):  
Early Eocene ◽  
Central Texas
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