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

02
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19
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58
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Current bid
€ 70
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Manuel Quiring
Expert
Estimate € 850 - € 1,000
DE
€70

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Description from the seller

学名: cf Ornithocheirid Pterosaur ( cf Ornithocheirus simus, (Owen, 1861) - Pterosaur claw

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 (113百万年)

サイズ: 1,9 cm

REF.: #J651

DESCRIPTION:
Ornithocheirus simus は破片状の下顎先端からのみ知られている。鼻面には祖先群に似た特徴的な凸形の「くさび状」冠がありました。Ornithocheirus は関連する Coloborhynchus および Tropeognathus に比べ、顎先が比較的狭く、歯の花状(ロゼット)が顕著に拡大したものではなく、また Ornithocheirus に比べてより発達した「くさび状」冠を持っていました。もう一つの特徴として、Ornithocheirus は歯がほとんど垂直で、外向きに角度がついたものではなかった点が、近縁種と異なる点として挙げられます。

過去には Ornithocheirus が現生した最大級の翼竜の一つであり、翼開帳が40フィート(12.2メートル)にも達したと信じられていました。

翼竜の爪の診断的特徴:

- 対称的な脈溝

- 指の爪の底が平ら

- 先端の曲がり部の終端は翼竜の爪の特有の特徴: 先端には腹側縁に薄いフランジまたは脊梁状の骨が露出している。急斜面への止まり木としての最適なグリップを得るための適応と考えられる。このフランジは崖に引っ掛かるのを助ける。

この標本に関する観察:

非常に珍しい、ほぼ全体がほぼ完存した標本。唯一の爪だけでは正確な分類決定が難しいため、本爪を Ornithocheiridae に分類します。しかし、この爪はニジェールの初期白亜紀に記載されているこの科の翼竜に属するはずです。現在は接着されたが復元されていない断裂があります。

我々のすべての化石には真正証明書が付属します。毎週、発行された真正証明書はウェブサイトのデータベース検証システムで更新されます。証明書がまだ更新されていない場合はご連絡ください。直ちに更新します。 Display box 付き。

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) - Pterosaur claw

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 (113百万年)

サイズ: 1,9 cm

REF.: #J651

DESCRIPTION:
Ornithocheirus simus は破片状の下顎先端からのみ知られている。鼻面には祖先群に似た特徴的な凸形の「くさび状」冠がありました。Ornithocheirus は関連する Coloborhynchus および Tropeognathus に比べ、顎先が比較的狭く、歯の花状(ロゼット)が顕著に拡大したものではなく、また Ornithocheirus に比べてより発達した「くさび状」冠を持っていました。もう一つの特徴として、Ornithocheirus は歯がほとんど垂直で、外向きに角度がついたものではなかった点が、近縁種と異なる点として挙げられます。

過去には Ornithocheirus が現生した最大級の翼竜の一つであり、翼開帳が40フィート(12.2メートル)にも達したと信じられていました。

翼竜の爪の診断的特徴:

- 対称的な脈溝

- 指の爪の底が平ら

- 先端の曲がり部の終端は翼竜の爪の特有の特徴: 先端には腹側縁に薄いフランジまたは脊梁状の骨が露出している。急斜面への止まり木としての最適なグリップを得るための適応と考えられる。このフランジは崖に引っ掛かるのを助ける。

この標本に関する観察:

非常に珍しい、ほぼ全体がほぼ完存した標本。唯一の爪だけでは正確な分類決定が難しいため、本爪を Ornithocheiridae に分類します。しかし、この爪はニジェールの初期白亜紀に記載されているこの科の翼竜に属するはずです。現在は接着されたが復元されていない断裂があります。

我々のすべての化石には真正証明書が付属します。毎週、発行された真正証明書はウェブサイトのデータベース検証システムで更新されます。証明書がまだ更新されていない場合はご連絡ください。直ちに更新します。 Display box 付き。

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
410
Objects sold
100%
protop

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