首页> 外文期刊>European Journal of Taxonomy >Systematic revision and palaeobiology of Rosenfeldia triasica and Rogeryon oppeli gen.?et comb.?nov. (Eucrustacea, Polychelida)
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Systematic revision and palaeobiology of Rosenfeldia triasica and Rogeryon oppeli gen.?et comb.?nov. (Eucrustacea, Polychelida)

机译:系统更新和古生物学的Rosenfeldia triasica和Rogeryon oppeli gen.?et comb.?nov。 (Eucrustacea,Polychelida)

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Polychelidan lobsters (Decapoda: Polychelida) are crustaceans with extant species which are restricted to deep water environments. Fossil species, however, used to live in more varied palaeoenvironments, from shallow water to deep water, and were more diverse morphologically. We?redescribe two species of polychelidan lobsters, the Late Triassic Rosenfeldia triasica Garassino, Teruzzi & Dalla Vecchia, 1996 and the Late Jurassic Eryon oppeli Woodward, 1866, recently assigned to the same genus, Rosenfeldia , based upon only a few characters. Our investigation of all available material of both species leads us to distinguish these two species and to erect Rogeryon gen.?nov. to accommodate Eryon oppeli . The palaeobiology of both species is interpreted for the first time. Rosenfeldia triasica with its stout first pereiopods and mandibles with both incisor and molar processes (documented for the first time in Polychelida) was benthic and probably fed either on slow-moving sedentary preys or was a scavenger. Rogeryon oppeli gen.?et comb.?nov. was benthic, visually adapted to shallow water palaeoenvironments, and possibly had a diet similar to that of slipper lobsters and horseshoe crabs. The redescription of these two species highlights the palaeobiological diversity of fossil polychelidans.
机译:chel螯龙虾(十足纲:Polychelida)是甲壳类动物,其现存物种仅限于深水环境。然而,化石物种过去曾生活在从浅水到深水的更多样化的古环境中,并且在形态上也更加多样化。我们重新描述两种多螯龙虾,一种是三叠纪晚期罗森菲尔德氏菌Triasica Garassino,Teruzzi和Dalla Vecchia,1996年,另一种是侏罗纪晚期侏罗纪Eryon oppeli Woodward,1866年,仅根据几个字符就被分配给了同一属罗森菲尔德氏菌。我们对这两个物种的所有可用材料的调查使我们能够区分这两个物种,并架起Rogeryon gen.?nov。容纳Eryon oppeli。这两个物种的古生物学是第一次被解释。 Rosenfeldia triasica具有坚硬的第一足节和下颌,有门齿和臼齿突(在波利切里达首次有记载)是底栖动物,可能以久坐不动的猎物为食,或者是清道夫。罗杰扬·奥佩利(Rogeryon Oppeli gen)?底栖动物,在视觉上适应浅水古环境,可能的饮食类似于拖鞋龙虾和horse。这两个物种的重新命名突出了化石多螯动物的古生物学多样性。

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