Abstract The early Eocene locality of La Borie is located near the village of Saint-Papoul, in southwestern France. It consists of clay deposits that have yielded numerous vertebrate fossils, including remains of the giant flightless bird Gastornis. These remains were initially attributed to the species G. parisiensis, which is otherwise recorded from the late Paleocene and earliest Eocene of the North Sea Basin. New fossil birds collected in the La Borie clay pit in 2018 include an almost complete mandible of Gastornis. We describe a new species of Gastornis based on this mandible and we show that the previously described remains from La Borie must be assigned to this new species. The new species differs from other species of Gastornis in the morphology of the mandible, maxilla and quadrate. The morphological diversity of the genus Gastornis, which existed in Europe for at least 17 million years, is emphasized. LSID of publication: urn:lsid:zoobank.org:pub:10E7938B-C972-4127-94DC-169D35977B11.

中文翻译：

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法国西南部拉博里早期始新世的一种新种 Gastornis (Aves, Gastornithiformes) 的描述

摘要 始新世早期的 La Borie 地区位于法国西南部的 Saint-Papoul 村附近。它由粘土沉积物组成，这些沉积物产生了许多脊椎动物化石，包括不会飞的巨型鸟类 Gastornis 的遗骸。这些遗骸最初归因于 G. parisiensis 物种，否则记录来自北海盆地的晚古新世和最早的始新世。2018 年在 La Borie 粘土坑中收集的新鸟类化石包括几乎完整的 Gastornis 下颌骨。我们根据这个下颌骨描述了一个新的 Gastornis 物种，并且我们表明之前描述的来自 La Borie 的遗骸必须归于这个新物种。这个新种在下颌骨、上颌骨和方形的形态上与其他 Gastornis 种不同。Gastornis 属的形态多样性，它在欧洲存在至少 1700 万年，得到了强调。出版物的 LSID：urn:lsid:zoobank.org:pub:10E7938B-C972-4127-94DC-169D35977B11。