A new Cretaceous orthopteran family of the Caelifera (order: Orthoptera) from Burmese amber of northern Myanmar

IF 1.9 4区地球科学 Q1 PALEONTOLOGY

Palz Pub Date : 2023-09-29 DOI:10.1007/s12542-023-00670-w

Kei Uchida, Martin Husemann, Ulrich Kotthoff

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引用次数: 0

Abstract

Abstract A new family of short horned grasshoppers, Burmecaelidae fam. nov., is described on the basis of a new species: Burmecaelinus armis fam., gen. et sp. nov. While any extant species can clearly be sorted into the Tridactylidea and Acrididea, the new fossil species presented here does not clearly match any of the two groups. The metafemora of the new family are apparently saltatorial and greatly inflated along its entire length, which is similar to extant and Mesozoic Tridactylidae and Ripipterygidae. In contrast, the compound eyes are elongated and protrude from the head dorsally; the elongated area of the pronotum does not cover the abdomen. Although the morphology of the hind legs is shared with Tridactyloidea, the shape of the head and abdomen are more similar to Tetrigoidea and Eumastacoidea. We suggest two hypotheses: (1) the new family emerged at the basis of the superfamilies Tridactyloidea and Acridoidea early in Caeliferan evolution, or alternatively (2) the new family emerged within Tridactyloidea, between the families Tridactylidae and Ripipterygidae. The new family may have emerged when these families split. The phylogenetic placement of the new family needs to be further evaluated in the future based on more specimens.

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缅甸北部缅甸琥珀中发现的白垩纪直翅目一新科(直翅目)

摘要:短角蚱蜢一新科——缅甸蝗科。11月11日，在一个新种的基础上进行了描述:Burmecaelinus armis fam。虽然任何现存的物种都可以明确地分为三趾纲和Acrididea，但这里展示的新化石物种并不能明确地与这两个群体中的任何一个相匹配。新科的元脉结构明显呈跳跃状，且沿全长呈明显的膨大，与现存及中生代的三叶蕨科和翼蕨科相似。相反，复眼拉长，从头部背部突出;前前额的细长区域不覆盖腹部。虽然后腿的形态与三趾总科相同，但头部和腹部的形状与蚱总科和棘总科更相似。我们提出了两种假设:(1)新科是在鳗目进化早期的三叉科和蝗科的基础上出现的，或者(2)新科是在三叉科和刺翅科之间出现的。当这些家庭分裂时，新的家庭可能就出现了。新科的系统发育定位需要在更多标本的基础上进一步评估。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Palz Earth and Planetary Sciences-Paleontology

CiteScore

3.30

自引率

5.60%

发文量

审稿时长

>12 weeks

期刊介绍： Founded in 1913, PalZ (Paläontologische Zeitschrift) is one of the journals with the longest tradition in the field of palaeontology to be published by a professional palaeontological society, the Paläontologische Gesellschaft. The journal is dedicated to the promotion of palaeontology as a scientific discipline and publishes high-quality research and review papers on all aspects of this field.