Hyžný Matúš, Dulai Alfréd
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Acta Palaeontol Pol. 2014;59(4):947-965. doi: 10.4202/app.2012.0078.
We describe deep-water ghost shrimp assemblages from the otherwise well known Oligocene Kiscell Clay in Hungary. The described fossorial shrimps (Decapoda: Callianassidae and Ctenochelidae) include: (younger synonym ) and (younger synonym ). The fossil material of the former species is assigned to based on the morphology of the major cheliped, particularly the pectinate fingers, bulbous propodus, cup-shaped carpus and elongated merus. from the Oligocene of Hungary is the first unequivocal fossil record of the genus, which is distinguished in the fossil record on the basis of the presence of a meral blade and meral hook on the major cheliped. is today known exclusively from shallow-water environments. The finding of a deep-water fossil representative of therefore appears to be a reverse of the common pattern of groups shifting environments from onshore to offshore over geological time, as seen in many taxa. The presence of comb. nov. in the Kiscell Clay therefore suggests different ecological requirements for at least some populations of this genus in the geological past.
我们描述了来自匈牙利著名渐新世基塞尔黏土中其他部分的深水幽灵虾组合。所描述的穴居虾类（十足目：美人虾科和栉螯虾科）包括：（较新的同物异名）和（较新的同物异名）。前一个物种的化石材料根据大螯足的形态，特别是栉状指节、球状腕节、杯状腕和细长的长节，被归入。来自匈牙利渐新世的是该属的首个明确化石记录，在化石记录中，它因大螯足上存在长节叶片和长节钩而得以区分。如今仅在浅水环境中发现。因此，发现的深水化石代表似乎与许多分类群在地质时期从陆上向近海转移环境的常见模式相反。基塞尔黏土中comb. nov.的存在因此表明，在地质过去，该属至少一些种群有不同的生态需求。
