Schlueterella stinnesbecki n. sp. (Ammonoidea, Diplomoceratidae) from the Turonian-Coniacian of northeastern Mexico

C. Ifrim
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引用次数: 1

Abstract

espanolSe describe una nueva especie del genero Schlueterella Wiedmann, 1962. Los veinte ejemplares de este ammonoideo heteromorfo fueron colectados en el norte de Coahuila, Mexico. Parece que Schlueterella stinnes-becki n. sp. fue una especie endemica en el Turoniano tardio-Coniaciano temprano. Con total certeza se trata del registro mas antiguo de este genero y una forma basica en su evolucion desde Neocrioceras. EnglishA new species of the genus Schlueterella Wiedmann, 1962 is here described. Twenty specimens of this heteromorph ammonoid were collected in northern Coahuila, Mexico. Schlueterella stinnesbecki n. sp. seems to have been an endemic form in the late Turonian-early Coniacian. This is the oldest definite record of the genus and a basal form in its evolution away from Neocrioceras.
产于墨西哥东北部Turonian-Coniacian的Schlueterella stinnesbecki n. sp
描述Schlueterella Wiedmann属的一个新种,1962年。在墨西哥科阿韦拉北部采集了20个异形氨标本。Schlueterella stinnes-becki n. sp.似乎是turonian晚期- coniacian早期的特有种。可以肯定的是,这是这一属最古老的记录,也是它从新低温蜡进化而来的基本形式。这里描述了Schlueterella Wiedmann属的新种,1962年。= =地理= =根据美国人口普查,该县的总面积为,其中土地和(3.064平方公里)水。= =地理= =根据美国人口普查,这个县的土地面积为。= =地理= =根据美国人口普查,这个县的土地面积为。
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