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Abstract <p>Burrows of the predatory polychaete <i>Lepidenteron</i> with scales and bones of small teleost fish are first discovered in the marine Upper Cretaceous (Turonian–Maastrichtian) of the Lower Volga region. All these burrows have a similar structure and belong to the ichnospecies <i>Lepidenteron lewesiensis</i> (Mantell, 1822). Bone remains and scales of teleost fish belonging to four taxa were found in the burrows: one Teleostei indet., two Clupeocephala indet. and one Dercetidae gen. indet. New finds of <i>L. lewesiensis</i> expand the paleogeographic distribution of this ichnogenus and ichnospecies in the Late Cretaceous, and complement our understanding of the Late Cretaceous marine paleoecosystems of this region.</p>

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Burrows of the Polychaetes Lepidenteron lewesiensis (Mantell, 1822) from the Upper Cretaceous of the Lower Volga Region

  • 期刊论文

  • 发表日期：

    2025年6月1日

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  • A. G. Sennikov,
  • A. V. Ivanov,
  • A. S. Bakaev,
  • S. Yu. Malenkina,
  • I. V. Novikov,
  • R. R. Gabdullin,
  • B. A. Meliev

摘要

Abstract

Burrows of the predatory polychaete Lepidenteron with scales and bones of small teleost fish are first discovered in the marine Upper Cretaceous (Turonian–Maastrichtian) of the Lower Volga region. All these burrows have a similar structure and belong to the ichnospecies Lepidenteron lewesiensis (Mantell, 1822). Bone remains and scales of teleost fish belonging to four taxa were found in the burrows: one Teleostei indet., two Clupeocephala indet. and one Dercetidae gen. indet. New finds of L. lewesiensis expand the paleogeographic distribution of this ichnogenus and ichnospecies in the Late Cretaceous, and complement our understanding of the Late Cretaceous marine paleoecosystems of this region.