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Showing results for tags 'miocene age'.
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From the album: MY FOSSIL Collection - Dpaul7
Bull or Dusky shark tooth Carcharhinus sp. SITE LOCATION: Aurora, Beaufort Co., North Carolina, USA TIME PERIOD: Miocene age (5.3-23 Million Years Ago) Data: Carcharhinus is the type genus of the family Carcharhinidae, the requiem sharks. One of 12 genera in its family, it contains over half of the species therein. It contains 35 extant species to date, with likely more species yet to be described. Requiem sharks are sharks of the family Carcharhinidae in the order Carcharhiniformes, containing migratory, live-bearing sharks of warm seas (sometimes of brackish or fresh water) such as the spinner shark, the blacknose shark, the blacktip shark, the blacktail reef shark, and the blacktip reef shark. The name may be related to the French word for shark, requin, which is itself of disputed etymology. One derivation of the latter is from Latin requiem ("rest"), which would thereby create a cyclic etymology (requiem-requin-requiem), but other sources derive it from the verb reschignier ("to grimace while baring teeth"). Family members have the usual carcharhiniform characteristics. Their eyes are round, and one or two gill slits fall over the pectoral fin base. Most species are viviparous, the young being born fully developed. They vary widely in size, from as small as 69 cm (2.26 ft) adult length in the Australian sharpnose shark, up to 5.5 m (18 ft) adult length in the tiger shark. Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Order: Carcharhiniformes Family: Carcharhinidae Genus: Carcharhinus -
dentalplates.JPG.612410acd1307c6e4d2e25f9acd1989c.JPG)
From the album: MY FOSSIL Collection - Dpaul7
Myliobatis sp. dental plates SITE LOCATION: Aurora, Beaufort Co., North Carolina, USA TIME PERIOD: Miocene age (5.3-23 Million Years Ago) Data: Myliobatis is a genus of eagle rays in the family Myliobatidae. Myliobatis species can reach a length of about 150 centimetres (59 in). Body consist of a rhomboidal disc, wider than long, with a one dorsal fin. The head is broad and short, with eyes and spiracles on the sides. The tail is slender, with 1-2 large spines at the base, without tail fin. The teeth are arranged in the lower and upper jaw in flat tooth plates called pavement teeth, each consisting of about 7 series of plates. Said mouth plates are useful to crush clam shells and crustaceans. The extinct species Myliobatis dixoni is known from Tertiary deposits along the Atlantic seaboards of the United States, Brazil, Nigeria, England, and Germany. Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Order: Myliobatiformes Family: Myliobatidae Genus: Myliobatis -
From the album: MY FOSSIL Collection - Dpaul7
Negaprion eurybathrodon ( Lemon shark) tooth SITE LOCATION: Aurora, Beaufort Co., North Carolina, USA TIME PERIOD: Miocene age (5.3-23 Million Years Ago) Data: Negaprion is a genus of requiem sharks in the family Carcharhinidae, containing the two extant species of lemon sharks: the lemon shark (N. brevirostris) of the Americas, and the sicklefin lemon shark (N. acutidens) of the Indo-Pacific. Both species are large, slow-moving, bulky sharks inhabiting shallow coastal waters, and can be identified by their short, blunt snouts, two dorsal fins of nearly equal size, and uniform yellowish brown or gray coloration. Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Order: Carcharhiniformes Family: Carcharhinidae Genus: Negaprion Species: †eurybathrodon -
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From the album: MY FOSSIL Collection - Dpaul7
Physogaleus contortus (Shark) Teeth SITE LOCATION: Aurora, Beaufort Co., North Carolina, USA TIME PERIOD: Miocene age (5.3-23 Million Years Ago) Data: Physogaleus is a small genus of prehistoric shark that lived from the Eocene to Miocene epochs. Physogaleus are only known from their fossil teeth and isolated vertebra. It has teeth similar to the modern tiger shark, but smaller. Physogaleus was actually thought to be a type of tiger shark (Galeocerdo). However, due to the many smaller differences in the shark teeth, it has been moved to its own genus. Physogaleus teeth are smaller than the tiger sharks, they also do not have the heavy serrations, and are slender and can be twisted toward the crown. This indicates they probably had a diet of bony fish, similar to the living sand-tiger shark. Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Order: Carcharhiniformes Family: Carcharhinidae Genus: †Physogaleus Species: †contortus -
Tooth3.JPG.f3907f9af4af49401e545d06b2f9a819.JPG)
From the album: MY FOSSIL Collection - Dpaul7
Physogaleus contortus (Shark) Teeth SITE LOCATION: Aurora, Beaufort Co., North Carolina, USA TIME PERIOD: Miocene age (5.3-23 Million Years Ago) Data: Physogaleus is a small genus of prehistoric shark that lived from the Eocene to Miocene epochs. Physogaleus are only known from their fossil teeth and isolated vertebra. It has teeth similar to the modern tiger shark, but smaller. Physogaleus was actually thought to be a type of tiger shark (Galeocerdo). However, due to the many smaller differences in the shark teeth, it has been moved to its own genus. Physogaleus teeth are smaller than the tiger sharks, they also do not have the heavy serrations, and are slender and can be twisted toward the crown. This indicates they probably had a diet of bony fish, similar to the living sand-tiger shark. Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Order: Carcharhiniformes Family: Carcharhinidae Genus: †Physogaleus Species: †contortus -
Tooth1.JPG.69b9b35c24953d1e141a7627c2014c70.JPG)
From the album: MY FOSSIL Collection - Dpaul7
Physogaleus contortus (Shark) Teeth SITE LOCATION: Aurora, Beaufort Co., North Carolina, USA TIME PERIOD: Miocene age (5.3-23 Million Years Ago) Data: Physogaleus is a small genus of prehistoric shark that lived from the Eocene to Miocene epochs. Physogaleus are only known from their fossil teeth and isolated vertebra. It has teeth similar to the modern tiger shark, but smaller. Physogaleus was actually thought to be a type of tiger shark (Galeocerdo). However, due to the many smaller differences in the shark teeth, it has been moved to its own genus. Physogaleus teeth are smaller than the tiger sharks, they also do not have the heavy serrations, and are slender and can be twisted toward the crown. This indicates they probably had a diet of bony fish, similar to the living sand-tiger shark. Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Order: Carcharhiniformes Family: Carcharhinidae Genus: †Physogaleus Species: †contortus -
Hemipristis serra (Snaggletooth shark) Tooth side a.JPG
Dpaul7 posted a gallery image in Member Collections
Toothsideb.JPG.d140e82694a8a05dce68bf08bbf2816a.JPG)
From the album: MY FOSSIL Collection - Dpaul7
Hemipristis serra (Snaggletooth shark) Tooth SITE LOCATION: Aurora, Beaufort Co., North Carolina, USA TIME PERIOD: Miocene age (5.3-23 Million Years Ago) Data: Hemipristis is a genus of weasel shark, family Hemigaleidae. It contains one extant species, the snaggletooth shark (H. elongata), as well as several extinct species. Hemipristis has two distinct type of teeth in each section of its jaw. The ones on the upper jaw act like knives, cutting through the flesh of the prey, while the pointed ones on the bottom act like forks, spearing the prey and holding it down. Because this shark was poorly studied in the past and its top and bottom jaw teeth differ to such a great degree, its top and lower jaw teeth were assigned to a separate genus in the past. Hemipristis serra - An extinct species from the Oligocene-Miocene of Florida, South Carolina, and other areas on the Atlantic coast. Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Order: Carcharhiniformes Family: Hemigaleidae Genus: Hemipristis Species: †serra -
Hemipristis serra (Snaggletooth shark) Tooth side a.JPG
Dpaul7 posted a gallery image in Member Collections
Toothsidea.JPG.7a5147928e80d2cf337bd0cdf537dba2.JPG)
From the album: MY FOSSIL Collection - Dpaul7
Hemipristis serra (Snaggletooth shark) Tooth SITE LOCATION: Aurora, Beaufort Co., North Carolina, USA TIME PERIOD: Miocene age (5.3-23 Million Years Ago) Data: Hemipristis is a genus of weasel shark, family Hemigaleidae. It contains one extant species, the snaggletooth shark (H. elongata), as well as several extinct species. Hemipristis has two distinct type of teeth in each section of its jaw. The ones on the upper jaw act like knives, cutting through the flesh of the prey, while the pointed ones on the bottom act like forks, spearing the prey and holding it down. Because this shark was poorly studied in the past and its top and bottom jaw teeth differ to such a great degree, its top and lower jaw teeth were assigned to a separate genus in the past. Hemipristis serra - An extinct species from the Oligocene-Miocene of Florida, South Carolina, and other areas on the Atlantic coast. Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Order: Carcharhiniformes Family: Hemigaleidae Genus: Hemipristis Species: †serra -
From the album: MY FOSSIL Collection - Dpaul7
Fossil Sea Urchin Spine SITE LOCATION: Aurora, Beaufort Co., North Carolina, USA TIME PERIOD: Miocene age (5.3-23 Million Years Ago) Data: Sea urchins or urchins, archaically called sea hedgehogs, are small, spiny, globular animals that, with their close kin, such as sand dollars, constitute the class Echinoidea of the echinoderm phylum. Sea urchins have globe- to flattened-shaped bodies covered with spines. They are non-aggressive marine animals found all over the world. They live in shallow, rocky bottoms, or hide in sandy cervices. Human contact with sea urchins is either accidental or intentional. People accidentally step on them in shallow surf, or intentionally pick up the urchins, unaware that they must handle the spines with care to avoid injury. Sea urchins have two types of venomous organs - spines and pedicellaria. Spines produce puncture wounds. Pedicellaria are small, delicate seizing organs that lie between the spines and release venom when they attach to an object. A puncture injury from a sea urchin can cause swelling and redness around the area, which may lead to severe pain and infection. Multiple deep puncture wounds may cause fatigue, weakness, muscle aches, shock, paralysis, and respiratory failure. Death may occur. Kingdom: Animalia Phylum: Echinodermata Class: Echinoidea -
From the album: MY FOSSIL Collection - Dpaul7
Fossil Sand Tiger Shark Teeth SITE LOCATION: Aurora, Beaufort Co., North Carolina, USA TIME PERIOD: Miocene age (5.3-23 Million Years Ago) Data: The sand tiger shark (Carcharias taurus), grey nurse shark, spotted ragged-tooth shark, or blue-nurse sand tiger is a species of shark that inhabits subtropical and temperate waters worldwide. It inhabits the continental shelf, from sandy shorelines (hence the name sand tiger shark) and submerged reefs to a depth of around 191 m (627 ft). Despite its name, it is not related to the tiger shark Galeocerdo cuvier; however, it is a cousin of the great white shark Carcharodon carcharias. Differentiating different species of sharks is usually done by locating and measuring their fins. The second dorsal fin and the anal fin of Carcharias are very large. In fact, they are about equal in size. The pectoral fins are triangular and only slightly larger than the dorsal fins. The teeth are very long and narrow with sharp points. The teeth are smooth with no ridges. The tail is one third of the entire body size. Sandtiger Shark - Carcharias sp. teeth: long, slender, smooth-edged blade, small, secondary cusplet on either side of main blade, strongly bilobed root, large lingual protruberance (bulge) and nutrient groove at center of root. Many 'species' have been named, but the fossil teeth are difficult to distinguish from one another as well as similar genera, such as Odontaspis and Striatolamna. Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Order: Lamniformes Family: Odontaspididae Genus: Carcharias -
From the album: MY FOSSIL Collection - Dpaul7
Fossil Sand Tiger Shark Teeth SITE LOCATION: Aurora, Beaufort Co., North Carolina, USA TIME PERIOD: Miocene age (5.3-23 Million Years Ago) Data: The sand tiger shark (Carcharias taurus), grey nurse shark, spotted ragged-tooth shark, or blue-nurse sand tiger is a species of shark that inhabits subtropical and temperate waters worldwide. It inhabits the continental shelf, from sandy shorelines (hence the name sand tiger shark) and submerged reefs to a depth of around 191 m (627 ft). Despite its name, it is not related to the tiger shark Galeocerdo cuvier; however, it is a cousin of the great white shark Carcharodon carcharias. Differentiating different species of sharks is usually done by locating and measuring their fins. The second dorsal fin and the anal fin of Carcharias are very large. In fact, they are about equal in size. The pectoral fins are triangular and only slightly larger than the dorsal fins. The teeth are very long and narrow with sharp points. The teeth are smooth with no ridges. The tail is one third of the entire body size. Sandtiger Shark - Carcharias sp. teeth: long, slender, smooth-edged blade, small, secondary cusplet on either side of main blade, strongly bilobed root, large lingual protruberance (bulge) and nutrient groove at center of root. Many 'species' have been named, but the fossil teeth are difficult to distinguish from one another as well as similar genera, such as Odontaspis and Striatolamna. Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Order: Lamniformes Family: Odontaspididae Genus: Carcharias -
From the album: MY FOSSIL Collection - Dpaul7
Fossil Sand Tiger Shark Teeth SITE LOCATION: Aurora, Beaufort Co., North Carolina, USA TIME PERIOD: Miocene age (5.3-23 Million Years Ago) Data: The sand tiger shark (Carcharias taurus), grey nurse shark, spotted ragged-tooth shark, or blue-nurse sand tiger is a species of shark that inhabits subtropical and temperate waters worldwide. It inhabits the continental shelf, from sandy shorelines (hence the name sand tiger shark) and submerged reefs to a depth of around 191 m (627 ft). Despite its name, it is not related to the tiger shark Galeocerdo cuvier; however, it is a cousin of the great white shark Carcharodon carcharias. Differentiating different species of sharks is usually done by locating and measuring their fins. The second dorsal fin and the anal fin of Carcharias are very large. In fact, they are about equal in size. The pectoral fins are triangular and only slightly larger than the dorsal fins. The teeth are very long and narrow with sharp points. The teeth are smooth with no ridges. The tail is one third of the entire body size. Sandtiger Shark - Carcharias sp. teeth: long, slender, smooth-edged blade, small, secondary cusplet on either side of main blade, strongly bilobed root, large lingual protruberance (bulge) and nutrient groove at center of root. Many 'species' have been named, but the fossil teeth are difficult to distinguish from one another as well as similar genera, such as Odontaspis and Striatolamna. Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Order: Lamniformes Family: Odontaspididae Genus: Carcharias -
From the album: MY FOSSIL Collection - Dpaul7
Fossil Sand Tiger Shark Teeth SITE LOCATION: Aurora, Beaufort Co., North Carolina, USA TIME PERIOD: Miocene age (5.3-23 Million Years Ago) Data: The sand tiger shark (Carcharias taurus), grey nurse shark, spotted ragged-tooth shark, or blue-nurse sand tiger is a species of shark that inhabits subtropical and temperate waters worldwide. It inhabits the continental shelf, from sandy shorelines (hence the name sand tiger shark) and submerged reefs to a depth of around 191 m (627 ft). Despite its name, it is not related to the tiger shark Galeocerdo cuvier; however, it is a cousin of the great white shark Carcharodon carcharias. Differentiating different species of sharks is usually done by locating and measuring their fins. The second dorsal fin and the anal fin of Carcharias are very large. In fact, they are about equal in size. The pectoral fins are triangular and only slightly larger than the dorsal fins. The teeth are very long and narrow with sharp points. The teeth are smooth with no ridges. The tail is one third of the entire body size. Sandtiger Shark - Carcharias sp. teeth: long, slender, smooth-edged blade, small, secondary cusplet on either side of main blade, strongly bilobed root, large lingual protruberance (bulge) and nutrient groove at center of root. Many 'species' have been named, but the fossil teeth are difficult to distinguish from one another as well as similar genera, such as Odontaspis and Striatolamna. Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Order: Lamniformes Family: Odontaspididae Genus: Carcharias -
From the album: MY FOSSIL Collection - Dpaul7
Fossil Sand Tiger Shark Teeth SITE LOCATION: Aurora, Beaufort Co., North Carolina, USA TIME PERIOD: Miocene age (5.3-23 Million Years Ago) Data: The sand tiger shark (Carcharias taurus), grey nurse shark, spotted ragged-tooth shark, or blue-nurse sand tiger is a species of shark that inhabits subtropical and temperate waters worldwide. It inhabits the continental shelf, from sandy shorelines (hence the name sand tiger shark) and submerged reefs to a depth of around 191 m (627 ft). Despite its name, it is not related to the tiger shark Galeocerdo cuvier; however, it is a cousin of the great white shark Carcharodon carcharias. Differentiating different species of sharks is usually done by locating and measuring their fins. The second dorsal fin and the anal fin of Carcharias are very large. In fact, they are about equal in size. The pectoral fins are triangular and only slightly larger than the dorsal fins. The teeth are very long and narrow with sharp points. The teeth are smooth with no ridges. The tail is one third of the entire body size. Sandtiger Shark - Carcharias sp. teeth: long, slender, smooth-edged blade, small, secondary cusplet on either side of main blade, strongly bilobed root, large lingual protruberance (bulge) and nutrient groove at center of root. Many 'species' have been named, but the fossil teeth are difficult to distinguish from one another as well as similar genera, such as Odontaspis and Striatolamna. Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Order: Lamniformes Family: Odontaspididae Genus: Carcharias -
From the album: MY FOSSIL Collection - Dpaul7
Fossil Sand Tiger Shark Teeth SITE LOCATION: Aurora, Beaufort Co., North Carolina, USA TIME PERIOD: Miocene age (5.3-23 Million Years Ago) Data: The sand tiger shark (Carcharias taurus), grey nurse shark, spotted ragged-tooth shark, or blue-nurse sand tiger is a species of shark that inhabits subtropical and temperate waters worldwide. It inhabits the continental shelf, from sandy shorelines (hence the name sand tiger shark) and submerged reefs to a depth of around 191 m (627 ft). Despite its name, it is not related to the tiger shark Galeocerdo cuvier; however, it is a cousin of the great white shark Carcharodon carcharias. Differentiating different species of sharks is usually done by locating and measuring their fins. The second dorsal fin and the anal fin of Carcharias are very large. In fact, they are about equal in size. The pectoral fins are triangular and only slightly larger than the dorsal fins. The teeth are very long and narrow with sharp points. The teeth are smooth with no ridges. The tail is one third of the entire body size. Sandtiger Shark - Carcharias sp. teeth: long, slender, smooth-edged blade, small, secondary cusplet on either side of main blade, strongly bilobed root, large lingual protruberance (bulge) and nutrient groove at center of root. Many 'species' have been named, but the fossil teeth are difficult to distinguish from one another as well as similar genera, such as Odontaspis and Striatolamna. Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Order: Lamniformes Family: Odontaspididae Genus: Carcharias -
From the album: MY FOSSIL Collection - Dpaul7
Fossil Sand Tiger Shark Teeth SITE LOCATION: Aurora, Beaufort Co., North Carolina, USA TIME PERIOD: Miocene age (5.3-23 Million Years Ago) Data: The sand tiger shark (Carcharias taurus), grey nurse shark, spotted ragged-tooth shark, or blue-nurse sand tiger is a species of shark that inhabits subtropical and temperate waters worldwide. It inhabits the continental shelf, from sandy shorelines (hence the name sand tiger shark) and submerged reefs to a depth of around 191 m (627 ft). Despite its name, it is not related to the tiger shark Galeocerdo cuvier; however, it is a cousin of the great white shark Carcharodon carcharias. Differentiating different species of sharks is usually done by locating and measuring their fins. The second dorsal fin and the anal fin of Carcharias are very large. In fact, they are about equal in size. The pectoral fins are triangular and only slightly larger than the dorsal fins. The teeth are very long and narrow with sharp points. The teeth are smooth with no ridges. The tail is one third of the entire body size. Sandtiger Shark - Carcharias sp. teeth: long, slender, smooth-edged blade, small, secondary cusplet on either side of main blade, strongly bilobed root, large lingual protruberance (bulge) and nutrient groove at center of root. Many 'species' have been named, but the fossil teeth are difficult to distinguish from one another as well as similar genera, such as Odontaspis and Striatolamna. Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Order: Lamniformes Family: Odontaspididae Genus: Carcharias -
From the album: MY FOSSIL Collection - Dpaul7
Fossil Sand Tiger Shark Teeth SITE LOCATION: Aurora, Beaufort Co., North Carolina, USA TIME PERIOD: Miocene age (5.3-23 Million Years Ago) Data: The sand tiger shark (Carcharias taurus), grey nurse shark, spotted ragged-tooth shark, or blue-nurse sand tiger is a species of shark that inhabits subtropical and temperate waters worldwide. It inhabits the continental shelf, from sandy shorelines (hence the name sand tiger shark) and submerged reefs to a depth of around 191 m (627 ft). Despite its name, it is not related to the tiger shark Galeocerdo cuvier; however, it is a cousin of the great white shark Carcharodon carcharias. Differentiating different species of sharks is usually done by locating and measuring their fins. The second dorsal fin and the anal fin of Carcharias are very large. In fact, they are about equal in size. The pectoral fins are triangular and only slightly larger than the dorsal fins. The teeth are very long and narrow with sharp points. The teeth are smooth with no ridges. The tail is one third of the entire body size. Sandtiger Shark - Carcharias sp. teeth: long, slender, smooth-edged blade, small, secondary cusplet on either side of main blade, strongly bilobed root, large lingual protruberance (bulge) and nutrient groove at center of root. Many 'species' have been named, but the fossil teeth are difficult to distinguish from one another as well as similar genera, such as Odontaspis and Striatolamna. Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Order: Lamniformes Family: Odontaspididae Genus: Carcharias
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Tooth2.JPG.5171410d17155abfc457f27c9263b89d.JPG)
Tooth3.JPG.f3907f9af4af49401e545d06b2f9a819.JPG)
Tooth1.JPG.69b9b35c24953d1e141a7627c2014c70.JPG)
Toothsideb.JPG.d140e82694a8a05dce68bf08bbf2816a.JPG)
Toothsidea.JPG.7a5147928e80d2cf337bd0cdf537dba2.JPG)
