Middle Miocene (Badenian) chitons (Mollusca, Polyplacophora) from the Central Paratethys 4: Letkés (Börzsöny Mts, Hungary)

Dulai, Alfréd (2025) Middle Miocene (Badenian) chitons (Mollusca, Polyplacophora) from the Central Paratethys 4: Letkés (Börzsöny Mts, Hungary). FRAGMENTA PALAEONTOLOGICA HUNGARICA, 40.. pp. 21-38. ISSN 1586-930X

Preview

Text Dulai_2025_Fragmenta_Letkes.pdf - Published Version Download (4MB) | Preview

Abstract

Letkés village at the western edge of the Börzsöny Mts has long been a well-knownMiddle Miocene fossil site. It has a particularly rich Mollusca fauna, but no Polyplacophora remainshave ever been published from there. Only 65 chiton valves have so far been recovered from thescreen-washed residue, but the diversity is nevertheless surprisingly high: 8 species of 7 genera havebeen identied. e three most abundant taxa are Acanthochitona, Cryptoplax, and Rhyssoplax, whichtogether account for 87% of the specimens. e genera Lepidopleurus, Parachiton, Ischnochiton, andCraspedochiton are accessorial members of the Polyplacophora assemblage. At the species level, Parachiton aicanus (Nierstrasz) and Acanthochitona lacrimulifera Bałuk are noteworthy, found only inthe recently processed materials from Várpalota and Devecser in Hungary, but their occurrence inLetkés indicates that they may have been present in small numbers over a larger area in the CentralParatethys. e most outstanding and important nd is Craspedochiton schafferi (Šulc), representedby a single tail valve only. is species was found for the rst time in Hungary and is the rst knownrecord of this species since its original description in 1934. With 29 gures.

Actions (login required)

Edit Item