一种高度多样化的宾夕法尼亚四足动物类组合,来自塞米利形成 (克尔科诺什皮埃蒙特盆地,捷克)
Gabriela Calábková1, Jakub Březina2, Roland Nádaskay3
1Department of Geological Sciences, Faculty of Science, Masaryk University, Brno, Czech Republic.
PeerJ
|January 14, 2026
概括
化石足迹揭示了宾夕法尼亚晚期Krkonoše皮埃蒙特盆地多样化的陆地四足动物生活. 这一发现凸显了湖泊环境对早期脊椎动物生命和化石保存的生态重要性.
科学领域:
- 古生物学的古生物学
- 沉积地质学 沉积地质学
- 古生物地理学 古生物地理学
背景情况:
- 波希米亚的Krkonoše皮埃蒙特盆地 (KPB) 含有宾夕法尼亚晚期到西苏拉尔早期的沉积岩.
- 在KPB的宾夕法尼亚矿床具有流-河流到湖环境,丰富的水生化石.
- 在KPB的宾夕法尼亚晚期层中没有发现陆地脊椎动物的骨遗骸.
研究的目的:
- 记录和分析来自宾夕法尼亚晚期KPB的四足动物 Ichnofossil组合.
- 为了确定某些ichnogenera在Gzhelian阶段的最早出现.
- 了解湖泊环境对陆地脊椎动物的古生态意义.
主要方法:
- 系统地描述和识别四足动物 Ichnofossils.
- 与宾夕法尼亚时期的已知ichnotaxa进行比较.
- 对含有化石的矿床进行了平流图和古环境分析.
主要成果:
- 鉴定了一种多样化的鱼类化石组合,包括六种鱼类属和七种鱼类物种.
- 这个组合包括第一个无可争议的Gzhelian出现的*Amphisauropus*.
- 鱼类动物代表了全球最多样化的宾夕法尼亚四足动物轨道组合之一.
- *Ichniotherium cottae*的痕迹为欧洲罕见的宾夕法尼亚发生提供了关键数据.
结论:
- 四足动物的足迹提供了第一次直接证据,证明了KPB的前珀米纪陆地脊椎动物多样性.
- 湖泊和近岸环境对陆地脊椎动物和足迹保护具有生态意义.
- 肯德基公园动物群对了解宾夕法尼亚晚期四足动物分布和潘盖亚的多样性做出了重大贡献.
更多相关视频
07:30Using Archival Japanese Paper and Thermoplastic Resins to Prepare Fossils for Storage, Display, Transport, and Radiography
Published on: November 14, 2025
794
08:09Microfocus X-ray CT microCT Imaging of Actinia equina Cnidaria, Harmothoe sp. Annelida, and Xenoturbella japonica Xenacoelomorpha
Published on: August 6, 2019
9.4K
相关概念视频
01:27Diversity of Protists III
733
Rhizaria are a diverse group of unicellular protists characterized by their threadlike cytoplasmic extensions known as pseudopodia. These structures aid in both locomotion and feeding, giving Rhizaria an amoeboid appearance. Their amoeboid morphology once led to taxonomic confusion, but molecular phylogenetics has clarified their evolutionary placement and emphasized their shared use of pseudopodia despite divergent lineages.This clade comprises diverse lineages such as Chlorarachniophyta,...
733
02:56The Fossil Record
27.0K
The fossil record documents only a small fraction of all organisms that have ever inhabited Earth. Fossilization is a rare process, and most organisms never become fossils. Moreover, the fossil record only exhibits fossils that have been discovered. Nevertheless, sedimentary rock fossils of long-lived, abundant, hard-bodied organisms dominate the fossil record. These fossils offer valuable information, such as an organism's physical form, behavior, and age. Studying the fossil record helps...
27.0K
01:27Diversity of Protists IV
746
Amoebozoa represent a diverse group of terrestrial and aquatic protists that utilize lobe-shaped pseudopodia for locomotion and feeding. This characteristic differentiates them from the Rhizaria, which possess threadlike pseudopodia. The primary classifications within Amoebozoa include gymnamoebas, entamoebas, and the plasmodial and cellular slime molds. Phylogenetic evidence indicates that Amoebozoa diverged from a lineage that ultimately gave rise to fungi and animals.Gymnamoebas and...
746
01:27Diversity of Protists II
769
Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
769
01:15Diversity of Protists I
841
Excavata is a diverse group of protists that includes both chemoorganotrophic and phototrophic species, with some thriving in anaerobic environments. Among the key groups within Excavata are diplomonads and parabasalids, which are flagellated protists that lack mitochondria and chloroplasts. These microorganisms typically inhabit anoxic environments, such as the intestines of animals, where they exist either symbiotically or as parasites, relying on fermentation for energy production. Some...
841
01:27Diversity of Archaea III
321
Crenarchaeota, a prominent phylum of Archaea, is remarkable for its ability to thrive in extreme environments characterized by high temperatures and acidity. These microorganisms inhabit sulfuric hot springs, volcanic systems, and submarine hydrothermal vents, where temperatures often exceed 100°C. The unique adaptations of Crenarchaeota not only allow survival under such extreme conditions but also provide insights into the mechanisms of life in primordial Earth-like...
321