已入深夜,您辛苦了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!祝你早点完成任务,早点休息,好梦!

Benthic pterobranchs from the Cambrian (Drumian) Marjum Konservat‐Lagerstätte of Utah

紫薇ätte公司 底栖区 地质学 古生物学 海洋学
作者
Rudy Lerosey‐Aubril,Jörg Maletz,Robert G. Coleman,Lucas Del Mouro,Robert R. Gaines,Jacob Skabelund,Javier Ortega‐Hernández
出处
期刊:Papers in palaeontology [Wiley]
卷期号:10 (3) 被引量:2
标识
DOI:10.1002/spp2.1555
摘要

Abstract Pterobranchs are rare in Cambrian strata of North America despite discoveries of more than 30 exceptionally preserved fossil biotas. Miaolingian pterobranchs from this continent typically form low‐diversity and low‐abundance assemblages. Here we describe an abundant pterobranch material from the Drumian Marjum Formation recently collected at the Gray Marjum Quarry in the House Range of Utah, USA. The faunule is composed of two new species: Sphenoecium marjumensis , an encrusting representative forming compact bushy colonies of more than 80 tubes with poorly developed rhizomes, and Tarnagraptus cupidus , an erect growing taxon characterized by intertwining stems and a monopodial colonial growth. Known in extant rhabdopleurids, this mode of colonial growth had hitherto never been observed in fossil pterobranchs. Its documentation in a c . 500‐myr‐old taxon attests to its deep origin in the evolutionary history of the group. Although the new species almost exclusively occur in the Marjum strata, this pterobranch faunule is broadly similar to those recovered from other Miaolingian Burgess Shale‐type deposits of North America in terms of genus‐level composition, species richness, and ecological structure. This may indicate that pterobranchs were poorly diverse components of animal communities at that time, or that they mostly thrived in more proximal shelf environments where conditions conducive to their preservation rarely developed. The common co‐occurrence of taxa with fundamentally different ecomorphotypes in the Miaolingian Series of North America strongly suggests an earlier phase of morphological diversification of benthic pterobranchs during the early Cambrian, which remains insufficiently documented by fossils.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
田様应助幽梦挽歌采纳,获得10
刚刚
土豆泥完成签到,获得积分10
1秒前
陌上花开完成签到,获得积分0
2秒前
liubing0426完成签到,获得积分10
3秒前
谨慎啤酒发布了新的文献求助10
4秒前
xiaofeiyan发布了新的文献求助20
5秒前
康康发布了新的文献求助10
5秒前
5秒前
荃芏完成签到,获得积分10
6秒前
7秒前
7秒前
爆米花应助科研通管家采纳,获得10
9秒前
烟花应助科研通管家采纳,获得10
9秒前
科目三应助科研通管家采纳,获得10
9秒前
李爱国应助科研通管家采纳,获得10
9秒前
打打应助科研通管家采纳,获得10
9秒前
9秒前
9秒前
脑洞疼应助科研通管家采纳,获得10
9秒前
你今天学了多少完成签到 ,获得积分10
10秒前
10秒前
李爱国应助kmkm采纳,获得10
11秒前
11秒前
西瓜发布了新的文献求助10
12秒前
12秒前
xubee发布了新的文献求助10
12秒前
源源源完成签到 ,获得积分0
12秒前
SiO2完成签到 ,获得积分10
12秒前
SIDNA关注了科研通微信公众号
13秒前
小左发布了新的文献求助30
14秒前
大秦发布了新的文献求助10
15秒前
哈哈哈哈发布了新的文献求助10
15秒前
幽梦挽歌发布了新的文献求助10
17秒前
谦让幻珊发布了新的文献求助10
17秒前
20秒前
Thien发布了新的文献求助10
21秒前
小牧鱼完成签到,获得积分10
23秒前
ED应助U9A采纳,获得10
23秒前
28秒前
28秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3976455
求助须知:如何正确求助?哪些是违规求助? 3520548
关于积分的说明 11203850
捐赠科研通 3257210
什么是DOI,文献DOI怎么找? 1798648
邀请新用户注册赠送积分活动 877835
科研通“疑难数据库(出版商)”最低求助积分说明 806539