第二种北美的化石角胸木蜂（膜翅目：木蜂科），来自早始新世绿河组。

The second North American fossil horntail wood-wasp (Hymenoptera: Siricidae), from the early Eocene Green River Formation.

机构信息

Department of Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, V5A 1S6, Canada; and Museum of Comparative Zoology, 26 Oxford Street, Cambridge, Massachusetts, 02138, United States of America; and Royal British Columbia Museum, 65 Belleville Street, Victoria, British Columbia, V8W 9W2, Canada. .

Fossil Butte National Monument, 864 Chicken Creek Road, Kemmerer, WY 83101, Wyoming, USA..

出版信息

Zootaxa. 2021 Jul 13;4999(4):325-334. doi: 10.11646/zootaxa.4999.4.2.

DOI:10.11646/zootaxa.4999.4.2

PMID:34810481

Abstract

Eoteredon lacoi gen. et sp. nov., is described from the early Eocene Green River Formation in Wyoming, the second fossil siricid genus and species described from North America. We propose Eoteredon as sister to the genus Teredon, whose sole species is one of the rarest of extant Siricidae. The majority of siricids today inhabit temperate Northern Hemisphere forests; Teredon cubensis, however, is one of its few species that live in megathermal tropical lowlands. The Eocene forest that Eoteredon inhabited had a mesothermal to megathermal climate. We place Eoteredon in the context of broad Cenozoic climate change.

摘要

新种化石林锹形虫 Eoteredon lacoi gen. et sp. nov. 产自怀俄明州早始新世绿河组，这是北美发现的第二种锹形虫属和种。我们提出 Eoteredon 与 Teredon 属亲缘关系最近，而 Teredon 属唯一的物种是现存锹形虫科中最稀有的物种之一。现今大多数锹形虫栖息在温带北半球森林中；然而，古巴扁锹形虫 Teredon cubensis 是少数生活在热带大暖温带低地的物种之一。 Eoteredon 栖息的始新世森林具有中暖热到暖热气候。我们将 Eoteredon 置于广泛的新生代气候变化背景下进行研究。