We describe two carnivoran coprolites found in the pseudokarst natural carnivore trap of Batallones-3, from the Late Miocene of Spain. The larger one, comprising multiple indistinguishable fragments of broken and corroded bones, indicates that the producer of the dropping might have been highly capable of crushing the softer parts of large bones. On the other hand, the smaller one shows several relatively larger and more complete bone fragments, thus exhibiting a greater capacity to break and swallow large portions of bone. The external morphology of the large coprolite is similar to that of extant bears, whereas the smaller one more closely resembles that of the living insectivorous hyaenid Proteles in morphology, on the one hand, and that of the viverrid Genetta in size, on the other hand. We hypothesize that the amphicyonid Magerycion anceps was the producer of the large coprolite and the jackal-sized basal hyaenid Protictitherium crassum excreted the smaller one. Thus, we present the first direct evidence of a bone durophagous diet in the carnivorans of Batallones.

中文翻译：

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天然陷阱中的粪化石：西班牙马德里中新世晚期 Batallones-3 遗址的食骨食肉动物的直接证据

我们描述了在西班牙晚中新世 Batallones-3 的假喀斯特天然食肉动物陷阱中发现的两种食肉动物粪化石。较大的一个由多个无法区分的破碎和腐蚀骨头碎片组成，这表明掉落物的产生者可能非常有能力压碎大骨头的较软部分。另一方面，较小的显示出几个相对较大和更完整的骨头碎片，因此表现出更大的能力来破坏和吞下大部分骨头。大粪化石的外部形态与现存的熊相似，而较小的粪化石则更类似于活的食虫鬣狗Proteles的形态，一方面，还有 viverrid Genetta另一方面，在尺寸上。我们假设两栖类Magerycion anceps是大粪石的生产者，而豺大小的基底鬣狗Protictitherium crassum排泄较小的粪石。因此，我们提出了巴塔龙食肉动物中骨硬食性饮食的第一个直接证据。