来自中国罗纪下期卢芬格形成的最大的赛欧波多摩尔夫头骨
Qian-Nan Zhang1,2, Lei Jia1,3,4, Tao Wang5
1Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China.
PeerJ
|December 16, 2024
概括
一种新的恐龙,Lishulong wangi,在中国的Lufeng形成被发现. 这种早期的类动物增强了我们对罗纪早期恐龙进化和古生物学地理学的理解.
科学领域:
- 古生物学的古生物学
- 脊椎动物动物学 脊椎动物动物学
- 进化生物学 进化生物学
背景情况:
- 中国的Lufeng构造以其丰富多样性的早期赛罗波多莫类恐龙而闻名.
- 这个地区代表了这些早期恐龙已知的劳拉西亚记录的一半以上.
研究的目的:
- 为了描述一个新的非赛罗波达赛罗波多形恐龙的新属和物种,Lishulong wangi.
- 为了分析Lishulong wangi的头骨和椎骨质学和遗传学位置.
- 为了增强对早期赛欧波形动物特征进化和古生物学地理学的理解.
主要方法:
- 一部分骨的描述,包括头骨和椎.
- 与其他Lufeng形动物进行骨科比较分析.
- 遗传学分析以确定Lishulong wangi.的进化关系.
主要成果:
- 利舒龙香水表现出独特的头骨和宫形状.
- 遗传学分析将Lishulong wangi定位为一个早期分离的Sauropodiformes,是云南鱼的姐妹分类.
- 利舒隆·昂吉 (Lishulong wangi) 的头骨是在卢芬格 (Lufeng) 形成中发现的最大的类动物头骨材料.
结论:
- 利舒隆芳扩大了已知的卢峰恐龙组合的多样性.
- 这一发现提供了关于早期赛欧罗波形态动物的性格演变的见解.
- 罗纪早期的罗型动物,特别是中国的种类,显示了庞盖亚内显著的古生物学地理交换的证据.
相关概念视频
01:27Cranial Bones: Lateral View
2.0K
The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
2.0K
01:22Sutures of the Skull
6.2K
The human skull is composed of several bones that come together to protect the brain and support the structures of the face. The junctions where these bones meet are called sutures.
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
6.2K
02:56The Fossil Record
25.0K
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...
25.0K
01:14Cranial Bones: Superior and Posterior View
1.9K
The superior view of the cranium shows the frontal and paired parietal bones.
The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella. The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin,...
The frontal bone is the single bone that forms the forehead. At its anterior midline, between the eyebrows, there is a slight depression called the glabella. The frontal bone also forms the supraorbital margin of the orbit. Near the middle of this margin is the supraorbital foramen, the opening that provides passage for a sensory nerve to the forehead. The frontal bone is thickened just above each supraorbital margin,...
1.9K
01:08Overview of the Skull
4.3K
The cranium (skull) is the skeletal structure of the head that supports the face and protects the brain. It is subdivided into the facial bones and the brain case, or cranial vault. The facial bones underlie the facial structures, form the nasal cavity, enclose the eyeballs, and support the teeth of the upper and lower jaws.
The cranial vault surrounds and protects the brain and houses the middle and inner ear structures. This cavity is bounded superiorly by the rounded top of the skull, which...
The cranial vault surrounds and protects the brain and houses the middle and inner ear structures. This cavity is bounded superiorly by the rounded top of the skull, which...
4.3K
01:26Bone Markings
5.1K
Bones have various surface features that help form joints and attach to other soft tissues. Depending on the function, bone markings are categorized into articulating projections, processes for attachment, depressions, and openings.
Articulating Projections
Articulating projections are found where two bones meet to form a joint. These structures are usually found at the ends of bones. The largest articulation is a rounded projection called the head, supported by a narrow neck at the ends of...
Articulating Projections
Articulating projections are found where two bones meet to form a joint. These structures are usually found at the ends of bones. The largest articulation is a rounded projection called the head, supported by a narrow neck at the ends of...
5.1K