極めて稀少なオルニトケリダ科の翼竜の爪 - 下部白亜紀エルラズ層 - 化石爪

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€ 80
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Sullivan Halipré
Expert
Estimate € 850 - € 1,000
IT
€80

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Description from the seller

学名: cf Ornithocheirid Pterosaur (cf Ornithocheirus simus, (Owen, 1861) - 羽根爪のPterosaur

場所: Gadoufaoua, Téneré Desert, Niger.

地質層: Erlhaz Fm

年代: 下部白亜紀、アプティアン/アルビアン期(約1億1300万年)

サイズ: 1.9 cm

REF.: #J651

説明:
Ornithocheirus simus は断片的な顎先しか知られていない。類縁種に似た前部に特徴的な凸状の“くさび状”の crest を有していた。Ornithocheirus は related Coloborhynchus および Tropeognathus に比べて顎先が比較的細長く、歯のロゼットが顕著に拡大していたのに対し、Ornithocheirus はより発達した“くさび状”の crest を持つ点で異なる。もう一つの特徴として、Ornithocheirus の歯はほとんど垂直で、外向きの角度に配置されていない点が挙げられる。

過去には Ornithocheirus が地球上で最大級の翼竜のひとつで、翼幅は約40フィート(12.2 m)に達したとされてきた。

翼竜の爪の診断的特徴:

- 対称的な脈溝
- 指の爪の底は平坦
- 先端部の曲がりは翼竜の爪の特性である: 先端には腹側縁の薄いフランジまたは脊が非常に尖端に見える。急斜面に止まる際の最適なグリップを得るための適応として考えられる。そのフランジは崖への掛け金として役立つ。

この標本についての観察:

珍しく珍しい標本で、ほぼ完全に近い状態。この爪を Ornithocheiridae 科に分類する。1つの爪だけでは正確な分類は非常に困難だが、この爪はニジェールの初期白亜紀に記述されたこの科の翼竜に属すると考えられる。現状は接着された断片があり、復元はされていない。

私たちのすべての化石には真贋証明書が付属します。毎週、発行された真贋証明書はウェブサイト上のデータベース検証システムで更新されます。証明書が未更新であることに気づいた場合は、お問い合わせください。すぐに更新いたします。Display box 同梱。

Seller's Story

Jurassic Dreams is the world's largest online dinosaur fossils store, unrivaled as the most reputable source for authentic fossil specimens. We are the only leading online fossils store owned by an accredited geologist and paleontology expert. In addition, we have extraordinary authentic meteorites specimens from all over the universe. With dozens of different specimens in stock... our customers come back time and again. Because, simply put, our lifetime guarantee is unbeatable. My name is Juan A. Poblador and I have a strong academic background in Paleontology and Geology from the University of Madrid and University of Alicante. I have participated in fossil excavation projects in several locations mainly in Europe and Africa for over 10 years. Writing scientifically accurate descriptions of every specimen is one of the tasks that consume most of my time. Obviously, recognizing fake and restored fossils is second nature to me. So you can be sure that every fossil in this website has been carefully screened and inspected by me. I have served collectors and fossil enthusiasts over the years. I have also supplied museums and institutions. I combine the study and research of significant specimens with exhibiting and selling the many other finds, which helps fund the new expeditions. Additionally, I have a small team of support staff for logistics. I've personally trained them to handle and pack the fossils properly so that they can be shipped within 24 hours and arrive at your door in one piece. Last but not least, I'm fortunate to have a great network of other seasoned paleontologists with whom I discuss the rarest items, new discoveries, and exploration trips to remote quarries... If I don't know something, the paleontological community really helps out. I like to manage Jurassic Dreams as a well curated online exhibition of museum grade pieces. I'm a collector myself and I love to share the knowledge with other fellow collectors. That's why I will respond to any email when you have any doubt or when you buy, and you'll have a personalized fossil selection experience. Jurassic Dreams a proud member of the Association of Applied Paleontological Sciences (AAPS) and abide by its Code of Ethics. The Association of Applied Paleontological Sciences conforms to the recommendations of The National Academy of Sciences Report on Paleontological Collecting and standard business practices and ethics. In addition, we are the certified member #5681 of the International Meteorite Collectors Association (IMCA) and a certified member of GMA (Global Meteorite Association) G0043. IMCA and GMA are the most prestigious associations helping meteorite collectors in their search for Authentic Meteorites for their collections and assisting others in helping to learn more about meteorites. A physical certificate of authenticity is provided free of charge with every fossil we sell. This is our lifetime guarantee. The certificate, individually prepared for each fossil by Juan A. Poblador, an expert paleontologist, contains an accurate scientific description, and the certificate's validity can be verified online at all times. In addition, a 100% money-back guarantee is provided.

学名: cf Ornithocheirid Pterosaur (cf Ornithocheirus simus, (Owen, 1861) - 羽根爪のPterosaur

場所: Gadoufaoua, Téneré Desert, Niger.

地質層: Erlhaz Fm

年代: 下部白亜紀、アプティアン/アルビアン期(約1億1300万年)

サイズ: 1.9 cm

REF.: #J651

説明:
Ornithocheirus simus は断片的な顎先しか知られていない。類縁種に似た前部に特徴的な凸状の“くさび状”の crest を有していた。Ornithocheirus は related Coloborhynchus および Tropeognathus に比べて顎先が比較的細長く、歯のロゼットが顕著に拡大していたのに対し、Ornithocheirus はより発達した“くさび状”の crest を持つ点で異なる。もう一つの特徴として、Ornithocheirus の歯はほとんど垂直で、外向きの角度に配置されていない点が挙げられる。

過去には Ornithocheirus が地球上で最大級の翼竜のひとつで、翼幅は約40フィート(12.2 m)に達したとされてきた。

翼竜の爪の診断的特徴:

- 対称的な脈溝
- 指の爪の底は平坦
- 先端部の曲がりは翼竜の爪の特性である: 先端には腹側縁の薄いフランジまたは脊が非常に尖端に見える。急斜面に止まる際の最適なグリップを得るための適応として考えられる。そのフランジは崖への掛け金として役立つ。

この標本についての観察:

珍しく珍しい標本で、ほぼ完全に近い状態。この爪を Ornithocheiridae 科に分類する。1つの爪だけでは正確な分類は非常に困難だが、この爪はニジェールの初期白亜紀に記述されたこの科の翼竜に属すると考えられる。現状は接着された断片があり、復元はされていない。

私たちのすべての化石には真贋証明書が付属します。毎週、発行された真贋証明書はウェブサイト上のデータベース検証システムで更新されます。証明書が未更新であることに気づいた場合は、お問い合わせください。すぐに更新いたします。Display box 同梱。

Seller's Story

Jurassic Dreams is the world's largest online dinosaur fossils store, unrivaled as the most reputable source for authentic fossil specimens. We are the only leading online fossils store owned by an accredited geologist and paleontology expert. In addition, we have extraordinary authentic meteorites specimens from all over the universe. With dozens of different specimens in stock... our customers come back time and again. Because, simply put, our lifetime guarantee is unbeatable. My name is Juan A. Poblador and I have a strong academic background in Paleontology and Geology from the University of Madrid and University of Alicante. I have participated in fossil excavation projects in several locations mainly in Europe and Africa for over 10 years. Writing scientifically accurate descriptions of every specimen is one of the tasks that consume most of my time. Obviously, recognizing fake and restored fossils is second nature to me. So you can be sure that every fossil in this website has been carefully screened and inspected by me. I have served collectors and fossil enthusiasts over the years. I have also supplied museums and institutions. I combine the study and research of significant specimens with exhibiting and selling the many other finds, which helps fund the new expeditions. Additionally, I have a small team of support staff for logistics. I've personally trained them to handle and pack the fossils properly so that they can be shipped within 24 hours and arrive at your door in one piece. Last but not least, I'm fortunate to have a great network of other seasoned paleontologists with whom I discuss the rarest items, new discoveries, and exploration trips to remote quarries... If I don't know something, the paleontological community really helps out. I like to manage Jurassic Dreams as a well curated online exhibition of museum grade pieces. I'm a collector myself and I love to share the knowledge with other fellow collectors. That's why I will respond to any email when you have any doubt or when you buy, and you'll have a personalized fossil selection experience. Jurassic Dreams a proud member of the Association of Applied Paleontological Sciences (AAPS) and abide by its Code of Ethics. The Association of Applied Paleontological Sciences conforms to the recommendations of The National Academy of Sciences Report on Paleontological Collecting and standard business practices and ethics. In addition, we are the certified member #5681 of the International Meteorite Collectors Association (IMCA) and a certified member of GMA (Global Meteorite Association) G0043. IMCA and GMA are the most prestigious associations helping meteorite collectors in their search for Authentic Meteorites for their collections and assisting others in helping to learn more about meteorites. A physical certificate of authenticity is provided free of charge with every fossil we sell. This is our lifetime guarantee. The certificate, individually prepared for each fossil by Juan A. Poblador, an expert paleontologist, contains an accurate scientific description, and the certificate's validity can be verified online at all times. In addition, a 100% money-back guarantee is provided.

Details

標本
Exceedingly Rare Ornithocheirid Pterosaur Claw - Lower Cretaceous Elrhaz Fm
地質年代
Lower Cretaceous, Aptian/Albian stage ( 113 million years)
コンディション
Natural
Authenticity
Original/official
スペインVerified
417
Objects sold
100%
protop

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