ティラノサウルス類の歯 - Nanotyrannus sp - 後期白亜紀 - ヘルクリーク層 - 化石歯
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Original Nanotyrannus sp. Tyrannosaur tooth from the Hell Creek Formation in Montana, Late Cretaceous Maastrichtian (ca. 68–66 million years ago), natural condition, about 2 cm in size.
AI-assisted summary
Description from the seller
科学名: Tyrannosaur Dinosaur - Nanotyrannus sp - Theropod Dinosaur Tooth
場所: Fallon Co., モンタナ州 (私有地), アメリカ
Geological Formation: Hell Creek Fm
Age: 後期白亜紀、 Maastrichtian 段階（約 6800万〜6600万年前）
Size: 2cm
REF.: #J116
DESCRIPTION:
authentic Nanotyrannus sp. tooth from the famous Late Cretaceous deposits of Montana, USA.
It exhibits exceptionally well-preserved serrations along the cutting edge (carina). Only in the tip sector its little eroded.
100% natural, with absolutely no restoration or repairs.
Nanotyrannus lancensis is a small, fast, agile tyrannosaur from the Late Cretaceous Hell Creek Formation (originally part of the Lance Formation), known for being small and distinctly different from T. rex, with recent studies confirming it's a separate species, not a juvenile T. rex, based on unique features like more teeth, larger hands, and distinct bone structures. Meaning "dwarf tyrant," it was a capable predator of smaller prey, coexisting with T. rex.
Key Facts
Name Meaning: "Dwarf tyrant" from Greek nanos (dwarf) and tyrannos (tyrant).
Species Name: lancensis refers to the Lance Formation where its skull was found.
Size: Around 15-18 feet long, much smaller and lighter than an adult T. rex.
Habitat: Hell Creek Formation (Late Cretaceous), same time and place as T. rex.
Lifestyle: Fast, agile pursuit predator, likely hunting smaller dinosaurs like pachycephalosaurs.
Controversy: Long debated as either a distinct species or juvenile T. rex, but recent evidence strongly supports it as its own genus.
Distinguishing Features: Narrower skull, more teeth, larger hands, and different bone structures than T. rex.
The Debate & Resolution
Juvenile T. rex Theory: 多くの科学者が、Hell Creek の小型 tyrannosaur 化石は若い T. rex だと考えていました。なぜなら大きな Nanotyrannus 化石が存在せず、T. rex 幼体は稀だったからです。
Separate Species Theory: 研究者は Nanotyrannus の化石が大人の特徴（癒合した骨など）を示し、T. rex が決して発達し得なかった独自の特徴を持つことを発見し、T. rex に成長することは生物学的に不可能だと結論づけました。
Current Consensus: Nanotyrannus は小型の tyrannosaur の独立した属であり、T. rex と共存する独自の、機敏な捕食者として認識されています。
All of our fossils come with a Certificate of Authenticity. Every week, the issued Certificates of Authenticity are updated in our database verification system on our website. If you find that your certificate has not yet been updated, please contact us and we will update it immediately. Display box included.
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.
科学名: Tyrannosaur Dinosaur - Nanotyrannus sp - Theropod Dinosaur Tooth
場所: Fallon Co., モンタナ州 (私有地), アメリカ
Geological Formation: Hell Creek Fm
Age: 後期白亜紀、 Maastrichtian 段階（約 6800万〜6600万年前）
Size: 2cm
REF.: #J116
DESCRIPTION:
authentic Nanotyrannus sp. tooth from the famous Late Cretaceous deposits of Montana, USA.
It exhibits exceptionally well-preserved serrations along the cutting edge (carina). Only in the tip sector its little eroded.
100% natural, with absolutely no restoration or repairs.
Nanotyrannus lancensis is a small, fast, agile tyrannosaur from the Late Cretaceous Hell Creek Formation (originally part of the Lance Formation), known for being small and distinctly different from T. rex, with recent studies confirming it's a separate species, not a juvenile T. rex, based on unique features like more teeth, larger hands, and distinct bone structures. Meaning "dwarf tyrant," it was a capable predator of smaller prey, coexisting with T. rex.
Key Facts
Name Meaning: "Dwarf tyrant" from Greek nanos (dwarf) and tyrannos (tyrant).
Species Name: lancensis refers to the Lance Formation where its skull was found.
Size: Around 15-18 feet long, much smaller and lighter than an adult T. rex.
Habitat: Hell Creek Formation (Late Cretaceous), same time and place as T. rex.
Lifestyle: Fast, agile pursuit predator, likely hunting smaller dinosaurs like pachycephalosaurs.
Controversy: Long debated as either a distinct species or juvenile T. rex, but recent evidence strongly supports it as its own genus.
Distinguishing Features: Narrower skull, more teeth, larger hands, and different bone structures than T. rex.
The Debate & Resolution
Juvenile T. rex Theory: 多くの科学者が、Hell Creek の小型 tyrannosaur 化石は若い T. rex だと考えていました。なぜなら大きな Nanotyrannus 化石が存在せず、T. rex 幼体は稀だったからです。
Separate Species Theory: 研究者は Nanotyrannus の化石が大人の特徴（癒合した骨など）を示し、T. rex が決して発達し得なかった独自の特徴を持つことを発見し、T. rex に成長することは生物学的に不可能だと結論づけました。
Current Consensus: Nanotyrannus は小型の tyrannosaur の独立した属であり、T. rex と共存する独自の、機敏な捕食者として認識されています。
All of our fossils come with a Certificate of Authenticity. Every week, the issued Certificates of Authenticity are updated in our database verification system on our website. If you find that your certificate has not yet been updated, please contact us and we will update it immediately. Display box included.
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 - Hell 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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