ティラノサウルス類の歯 - Nanotyrannus sp - 後期白亜紀 - Lance Creek Formation - 化石歯
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Tyrannosaur Dinosaur Tooth - Nanotyrannus sp, a natural theropod dinosaur tooth specimen from the Lance Creek Formation dating to the Late Cretaceous Maastrichtian, about 3 cm in length, with an original certificate of authenticity and display box included.
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Description from the seller
学名: Tyrannosaur Dinosaur - Nanotyrannus sp - Theropod Dinosaur Tooth
場所: ウィオミング州 Weston郡（私有地）, USA
地質層: Lance Creek Formation
年代: 白亜紀後期、Maastrichtian期（約6800万〜6600万年前）
サイズ: 3cm
REF.: #J561
DESCRIPTION:
Nanotyrannus lancensisは、Late Cretaceous Hell Creek Formation（元はLance Formationの一部）に生息した小型で快速・機敏な暴牛竜で、T. rexとは明確に異なる小型個体として知られています。最近の研究では、T. rexの幼体ではなく別種であると確認され、より多くの歯、より大きな前肢、そして独特の骨構造といった特徴に基づいて判定されています。意味は「矮小なる tyrant（矮 tyrant）」で、T. rexと共存する小型の捕食者として機能していました。
主要事実
名称の意味: 「矮小なる暴君」を意味するギリシャ語 nanos（矮小）と tyrannos（暴君）から。
種名: lancensis は頭蓋骨が発見された Lance Formation を指す。
サイズ: 約15〜18フィート（約4.5〜5.5メートル）程度で、成体のT. rexよりはるかに小さく軽量。
生息地: Hell Creek および Lance Creek Formation（白亜紀後期）、T. rexと同時代・同地域。
ライフスタイル: 迅速で機敏な追跡捕食者で、恐竜類の中でも小型の恐竜（パキケファロサウルス類など）を狙うことが多かったと考えられる。
論争: 長く別種か幼体T. rexかと論じられてきたが、近年の証拠はそれが独自の属として存在することを強く支持している。
識別特徴: T. rexよりも頭蓋が細長く、歯が多く、前肢が大きく、骨構造が異なる。
論争の経緯:
幼体T. rex説: Hell CreekおよびLance Creekの小型暴竜の化石が若いT. rexだと考えられてきた背景には、Nanotyrannusの大きな化石が存在せず、T. rexの幼体は珍しいと考えられていた点がある。
別種説: Nanotyrannusの化石には大人の特徴（癒合した骨など）が見られ、T. rexが発達させなかった特徴も確認できることから、生物学的にT. rexへ成長することは不可能であるとされた。
現在の合意: Nanotyrannusは小型暴竜の別個の属として認識され、T. rexと共存する独自の機敏な捕食者として位置づけられている。
観察事項: 保存状態の良い標本で、縁切り部（ノコギリ状縁）とエナメル質が優れている。修復は1箇所の清潔な接着破片のみ。復元はなし。極上の標本。
当社のすべての化石には真贋証明書が付属します。毎週、発行済みの真贋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。証明書が未更新の場合はご連絡ください。すぐに更新いたします。Display box も同梱。
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: Tyrannosaur Dinosaur - Nanotyrannus sp - Theropod Dinosaur Tooth
場所: ウィオミング州 Weston郡（私有地）, USA
地質層: Lance Creek Formation
年代: 白亜紀後期、Maastrichtian期（約6800万〜6600万年前）
サイズ: 3cm
REF.: #J561
DESCRIPTION:
Nanotyrannus lancensisは、Late Cretaceous Hell Creek Formation（元はLance Formationの一部）に生息した小型で快速・機敏な暴牛竜で、T. rexとは明確に異なる小型個体として知られています。最近の研究では、T. rexの幼体ではなく別種であると確認され、より多くの歯、より大きな前肢、そして独特の骨構造といった特徴に基づいて判定されています。意味は「矮小なる tyrant（矮 tyrant）」で、T. rexと共存する小型の捕食者として機能していました。
主要事実
名称の意味: 「矮小なる暴君」を意味するギリシャ語 nanos（矮小）と tyrannos（暴君）から。
種名: lancensis は頭蓋骨が発見された Lance Formation を指す。
サイズ: 約15〜18フィート（約4.5〜5.5メートル）程度で、成体のT. rexよりはるかに小さく軽量。
生息地: Hell Creek および Lance Creek Formation（白亜紀後期）、T. rexと同時代・同地域。
ライフスタイル: 迅速で機敏な追跡捕食者で、恐竜類の中でも小型の恐竜（パキケファロサウルス類など）を狙うことが多かったと考えられる。
論争: 長く別種か幼体T. rexかと論じられてきたが、近年の証拠はそれが独自の属として存在することを強く支持している。
識別特徴: T. rexよりも頭蓋が細長く、歯が多く、前肢が大きく、骨構造が異なる。
論争の経緯:
幼体T. rex説: Hell CreekおよびLance Creekの小型暴竜の化石が若いT. rexだと考えられてきた背景には、Nanotyrannusの大きな化石が存在せず、T. rexの幼体は珍しいと考えられていた点がある。
別種説: Nanotyrannusの化石には大人の特徴（癒合した骨など）が見られ、T. rexが発達させなかった特徴も確認できることから、生物学的にT. rexへ成長することは不可能であるとされた。
現在の合意: Nanotyrannusは小型暴竜の別個の属として認識され、T. rexと共存する独自の機敏な捕食者として位置づけられている。
観察事項: 保存状態の良い標本で、縁切り部（ノコギリ状縁）とエナメル質が優れている。修復は1箇所の清潔な接着破片のみ。復元はなし。極上の標本。
当社のすべての化石には真贋証明書が付属します。毎週、発行済みの真贋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。証明書が未更新の場合はご連絡ください。すぐに更新いたします。Display box も同梱。
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
Tyrannosaur Dinosaur Tooth - Nanotyrannus sp - Late Cretaceous - Lance Creek Fm
地質年代
Late Cretaceous, Maastrichtian stage (~68-66 Million Years)
コンディション
Natural
Authenticity
Original/official
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