首页> 外文期刊>Neues Jahrbuch fur Geologie und Palaontologie. Abhandlungen >New specimens of Eocene stem-group psittaciform birds may shed light on the affinities of the first named fossil bird, Halcyornis toliapicus KOENIG, 1825
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New specimens of Eocene stem-group psittaciform birds may shed light on the affinities of the first named fossil bird, Halcyornis toliapicus KOENIG, 1825

机译:始新世始祖类鹦鹉嘴类鸟类的新标本可能揭示了第一个命名的化石鸟类Halcyornis toliapicus KOENIG(1825年)的亲和力

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摘要

Two well-preserved skulls of the stem-group psittaciform bird Pseudasturides macrocephalus (MAYR, 1998) are described from the Middle Eocene of Messel (Germany). Further reported is a three-dimensionally preserved partial skeleton of a Pseudasturides-like bird from the Isle of Sheppey (England). The new Messel specimens show that, in contrast to previous descriptions, the skull of P. macrocephalus exhibits well-developed fossae temporales. With regard to this and other features, e.g., the narrow interorbital bridge of the os frontale, the cranium of P. macrocephalus closely resembles that of Halcyornis toliapicus KOENIG, 1825, whose affinities have been uncertain so far. Pseudasturides-like birds are the most abundant small birds in the London Clay of the Isle of Sheppey, the type locality of H. toliapicus, indicating that Pseudasturidae MAYR, 1998 may be a junior synonym of Halcyornithidae HARRISON & WALKER, 1972.
机译:从Messel的中始新世(德国)描述了两个保存完好的干群鹦鹉形鸟Pseudasturides macrocephalus的两个头骨(MAYR,1998)。进一步报道的是来自谢珀岛(英格兰)的伪拟似鸟的鸟的三维保存的部分骨骼。新的Messel标本显示,与以前的描述相反,P。macrocephalus的头骨表现出发育良好的颞窝。关于这一特征和其他特征,例如前额骨的狭窄的眶间桥,P。macrocephalus的颅骨非常类似于1825年的Halcyornis toliapicus KOENIG,其亲和力迄今尚未确定。类假单胞鸟是谢皮岛伦敦粘土中最丰富的小鸟,这是toliapicus的典型产地,这表明1998年的假单胞菌MAYR可能是Halcyornithidae HARRISON&WALKER,1972年的初级同义词。

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