View allAll Photos Tagged cucullaea
Cucullaea (Idonearca) melhaseana Anderson, 1958 - fossil bivalve from the Cretaceous of South Carolina, USA.
Bivalves are bilaterally symmetrical molluscs having two calcareous, asymmetrical shells (valves) - they include the clams, oysters, and scallops. In most bivalves, the two shells are mirror images of each other (the major exception is the oysters). They occur in marine, estuarine, and freshwater environments. Bivalves are also known as pelecypods and lamellibranchiates.
Bivalves are sessile, benthic organisms - they occur on or below substrates. Most of them are filter-feeders, using siphons to bring in water, filter the water for tiny particles of food, then expel the used water. The majority of bivalves are infaunal - they burrow into unlithified sediments. In hard substrate environments, some forms make borings, in which the bivalve lives. Some groups are hard substrate encrusters, using a mineral cement to attach to rocks, shells, or wood.
The fossil record of bivalves is Cambrian to Recent. They are especially common in the post-Paleozoic fossil record.
Seen here is an internal mold of a Cucullaea bivalve. The clam's original calcareous shell has dissolved away, leaving an impression of the interior structure of the valves.
Classification: Animalia, Mollusca, Bivalvia, Pteriomorphia, Arcoida, Cucullaeidae
Stratigraphy: Pee Dee Formation, Campanian to Maastrichtian Stage, upper Upper Cretaceous
Locality: unrecorded/undisclosed site at or near Myrtle Beach, coastal-northeastern South Carolina, USA
Cucullaea (Idonearca) melhaseana Anderson, 1958 - fossil bivalve from the Cretaceous of South Carolina, USA. (ventral view)
Bivalves are bilaterally symmetrical molluscs having two calcareous, asymmetrical shells (valves) - they include the clams, oysters, and scallops. In most bivalves, the two shells are mirror images of each other (the major exception is the oysters). They occur in marine, estuarine, and freshwater environments. Bivalves are also known as pelecypods and lamellibranchiates.
Bivalves are sessile, benthic organisms - they occur on or below substrates. Most of them are filter-feeders, using siphons to bring in water, filter the water for tiny particles of food, then expel the used water. The majority of bivalves are infaunal - they burrow into unlithified sediments. In hard substrate environments, some forms make borings, in which the bivalve lives. Some groups are hard substrate encrusters, using a mineral cement to attach to rocks, shells, or wood.
The fossil record of bivalves is Cambrian to Recent. They are especially common in the post-Paleozoic fossil record.
Seen here is an internal mold of a Cucullaea bivalve. The clam's original calcareous shell has dissolved away, leaving an impression of the interior structure of the valves.
Classification: Animalia, Mollusca, Bivalvia, Pteriomorphia, Arcoida, Cucullaeidae
Stratigraphy: Pee Dee Formation, Campanian to Maastrichtian Stage, upper Upper Cretaceous
Locality: unrecorded/undisclosed site at or near Myrtle Beach, coastal-northeastern South Carolina, USA
Cucullaea (Idonearca) melhaseana Anderson, 1958 - fossil bivalve from the Cretaceous of South Carolina, USA.
Bivalves are bilaterally symmetrical molluscs having two calcareous, asymmetrical shells (valves) - they include the clams, oysters, and scallops. In most bivalves, the two shells are mirror images of each other (the major exception is the oysters). They occur in marine, estuarine, and freshwater environments. Bivalves are also known as pelecypods and lamellibranchiates.
Bivalves are sessile, benthic organisms - they occur on or below substrates. Most of them are filter-feeders, using siphons to bring in water, filter the water for tiny particles of food, then expel the used water. The majority of bivalves are infaunal - they burrow into unlithified sediments. In hard substrate environments, some forms make borings, in which the bivalve lives. Some groups are hard substrate encrusters, using a mineral cement to attach to rocks, shells, or wood.
The fossil record of bivalves is Cambrian to Recent. They are especially common in the post-Paleozoic fossil record.
Seen here is an internal mold of a Cucullaea bivalve. The clam's original calcareous shell has dissolved away, leaving an impression of the interior structure of the valves.
Classification: Animalia, Mollusca, Bivalvia, Pteriomorphia, Arcoida, Cucullaeidae
Stratigraphy: Pee Dee Formation, Campanian to Maastrichtian Stage, upper Upper Cretaceous
Locality: unrecorded/undisclosed site at or near Myrtle Beach, coastal-northeastern South Carolina, USA
Idonearca vulgaris (Morton, 1830) - anterior view of an articulated fossil bivalve from the Cretaceous of Tennessee, USA. (3.2 centimeters across at its widest)
This species is also known as Cucullaea (Idonearca) vulgaris.
Left side: right valve
Right side: left valve
Dorsal at top.
Ventral at bottom.
Bivalves are bilaterally symmetrical molluscs having two calcareous, asymmetrical shells (valves) - they include the clams, oysters, and scallops. In most bivalves, the two shells are mirror images of each other (the major exception is the oysters). They occur in marine, estuarine, and freshwater environments. Bivalves are also known as pelecypods and lamellibranchiates.
Bivalves are sessile, benthic organisms - they occur on or below substrates. Most of them are filter-feeders, using siphons to bring in water, filter the water for tiny particles of food, then expel the used water. The majority of bivalves are infaunal - they burrow into unlithified sediments. In hard substrate environments, some forms make borings, in which the bivalve lives. Some groups are hard substrate encrusters, using a mineral cement to attach to rocks, shells, or wood.
The fossil record of bivalves is Cambrian to Recent. They are especially common in the post-Paleozoic fossil record.
This three-dimensionally preserved fossil bivalve is a false ark clam. It comes from a famous Cretaceous-aged marine deposit in western Tennessee called Coon Creek. During the Cretaceous, the lower and middle Mississippi River Valley region was below sea level - ocean extended from Louisiana and Mississippi up north to Arkansas, western Tennessee, and the Illinois-Missouri-Kentucky tristate area.
Classification: Animalia, Mollusca, Bivalvia, Pteriomorphia, Arcoida, Cucullaeidae
Stratigraphy: Coon Creek Formation (a.k.a. Coon Creek "Tongue" of the Ripley Formation), lower Maastrichtian Stage, upper Upper Cretaceous
Locality: Coon Creek, northeastern McNairy County, southwestern Tennessee, USA
Cucullaea (Idonearca) melhaseana Anderson, 1958 - fossil bivalve from the Cretaceous of South Carolina, USA. (dorsal view)
Bivalves are bilaterally symmetrical molluscs having two calcareous, asymmetrical shells (valves) - they include the clams, oysters, and scallops. In most bivalves, the two shells are mirror images of each other (the major exception is the oysters). They occur in marine, estuarine, and freshwater environments. Bivalves are also known as pelecypods and lamellibranchiates.
Bivalves are sessile, benthic organisms - they occur on or below substrates. Most of them are filter-feeders, using siphons to bring in water, filter the water for tiny particles of food, then expel the used water. The majority of bivalves are infaunal - they burrow into unlithified sediments. In hard substrate environments, some forms make borings, in which the bivalve lives. Some groups are hard substrate encrusters, using a mineral cement to attach to rocks, shells, or wood.
The fossil record of bivalves is Cambrian to Recent. They are especially common in the post-Paleozoic fossil record.
Seen here is an internal mold of a Cucullaea bivalve. The clam's original calcareous shell has dissolved away, leaving an impression of the interior structure of the valves.
The circular pits are modern bivalve borings - this fossil was on the modern seafloor for some time.
Classification: Animalia, Mollusca, Bivalvia, Pteriomorphia, Arcoida, Cucullaeidae
Stratigraphy: Pee Dee Formation, Campanian to Maastrichtian Stage, upper Upper Cretaceous
Locality: unrecorded/undisclosed site at or near Myrtle Beach, coastal-northeastern South Carolina, USA
Idonearca vulgaris (Morton, 1830) - right valve of a fossil bivalve from the Cretaceous of Tennessee, USA. (4.9 centimeters across at its widest)
This species is also known as Cucullaea (Idonearca) vulgaris.
Orientation: anterior to the right; posterior at left; dorsal at top; ventral at bottom
Bivalves are bilaterally symmetrical molluscs having two calcareous, asymmetrical shells (valves) - they include the clams, oysters, and scallops. In most bivalves, the two shells are mirror images of each other (the major exception is the oysters). They occur in marine, estuarine, and freshwater environments. Bivalves are also known as pelecypods and lamellibranchiates.
Bivalves are sessile, benthic organisms - they occur on or below substrates. Most of them are filter-feeders, using siphons to bring in water, filter the water for tiny particles of food, then expel the used water. The majority of bivalves are infaunal - they burrow into unlithified sediments. In hard substrate environments, some forms make borings, in which the bivalve lives. Some groups are hard substrate encrusters, using a mineral cement to attach to rocks, shells, or wood.
The fossil record of bivalves is Cambrian to Recent. They are especially common in the post-Paleozoic fossil record.
This well preserved fossil bivalve is a false ark clam. It comes from a famous Cretaceous-aged marine deposit in western Tennessee called Coon Creek. During the Cretaceous, the lower and middle Mississippi River Valley region was below sea level - ocean extended from Louisiana and Mississippi up north to Arkansas, western Tennessee, and the Illinois-Missouri-Kentucky tristate area.
Classification: Animalia, Mollusca, Bivalvia, Pteriomorphia, Arcoida, Cucullaeidae
Stratigraphy: Coon Creek Formation (a.k.a. Coon Creek "Tongue" of the Ripley Formation), lower Maastrichtian Stage, upper Upper Cretaceous
Locality: Coon Creek, northeastern McNairy County, southwestern Tennessee, USA
Idonearca vulgaris (Morton, 1830) - left valve of a fossil bivalve from the Cretaceous of Tennessee, USA. (4.9 centimeters across at its widest)
This species is also known as Cucullaea (Idonearca) vulgaris.
Orientation: anterior to the left; posterior at right; dorsal at top; ventral at bottom
Bivalves are bilaterally symmetrical molluscs having two calcareous, asymmetrical shells (valves) - they include the clams, oysters, and scallops. In most bivalves, the two shells are mirror images of each other (the major exception is the oysters). They occur in marine, estuarine, and freshwater environments. Bivalves are also known as pelecypods and lamellibranchiates.
Bivalves are sessile, benthic organisms - they occur on or below substrates. Most of them are filter-feeders, using siphons to bring in water, filter the water for tiny particles of food, then expel the used water. The majority of bivalves are infaunal - they burrow into unlithified sediments. In hard substrate environments, some forms make borings, in which the bivalve lives. Some groups are hard substrate encrusters, using a mineral cement to attach to rocks, shells, or wood.
The fossil record of bivalves is Cambrian to Recent. They are especially common in the post-Paleozoic fossil record.
This well preserved fossil bivalve is a false ark clam. It comes from a famous Cretaceous-aged marine deposit in western Tennessee called Coon Creek. During the Cretaceous, the lower and middle Mississippi River Valley region was below sea level - ocean extended from Louisiana and Mississippi up north to Arkansas, western Tennessee, and the Illinois-Missouri-Kentucky tristate area.
Classification: Animalia, Mollusca, Bivalvia, Pteriomorphia, Arcoida, Cucullaeidae
Stratigraphy: Coon Creek Formation (a.k.a. Coon Creek "Tongue" of the Ripley Formation), lower Maastrichtian Stage, upper Upper Cretaceous
Locality: Coon Creek, northeastern McNairy County, southwestern Tennessee, USA
Idonearca vulgaris (Morton, 1830)- hingeline view of an articulated fossil bivalve from the Cretaceous of Tennessee, USA. (3.2 centimeters across at its widest)
This species is also known as Cucullaea (Idonearca) vulgaris.
Left side: right valve
Right side: left valve
Anterior at bottom.
Posterior at top.
Bivalves are bilaterally symmetrical molluscs having two calcareous, asymmetrical shells (valves) - they include the clams, oysters, and scallops. In most bivalves, the two shells are mirror images of each other (the major exception is the oysters). They occur in marine, estuarine, and freshwater environments. Bivalves are also known as pelecypods and lamellibranchiates.
Bivalves are sessile, benthic organisms - they occur on or below substrates. Most of them are filter-feeders, using siphons to bring in water, filter the water for tiny particles of food, then expel the used water. The majority of bivalves are infaunal - they burrow into unlithified sediments. In hard substrate environments, some forms make borings, in which the bivalve lives. Some groups are hard substrate encrusters, using a mineral cement to attach to rocks, shells, or wood.
The fossil record of bivalves is Cambrian to Recent. They are especially common in the post-Paleozoic fossil record.
This three-dimensionally preserved fossil bivalve is a false ark clam. It comes from a famous Cretaceous-aged marine deposit in western Tennessee called Coon Creek. During the Cretaceous, the lower and middle Mississippi River Valley region was below sea level - ocean extended from Louisiana and Mississippi up north to Arkansas, western Tennessee, and the Illinois-Missouri-Kentucky tristate area.
Classification: Animalia, Mollusca, Bivalvia, Pteriomorphia, Arcoida, Cucullaeidae
Stratigraphy: Coon Creek Formation (a.k.a. Coon Creek "Tongue" of the Ripley Formation), lower Maastrichtian Stage, upper Upper Cretaceous
Locality: Coon Creek, northeastern McNairy County, southwestern Tennessee, USA
Idonearca vulgaris (Morton, 1830) - fossil bivalve shell from the Cretaceous of Tennessee. (internal view of a left valve; ~7.7 centimeters across at its widest)
This species is also known as Cucullaea (Idonearca) vulgaris.
Bivalves are bilaterally symmetrical molluscs having two calcareous, asymmetrical shells (valves) - they include the clams, oysters, and scallops. In most bivalves, the two shells are mirror images of each other (the major exception is the oysters). They occur in marine, estuarine, and freshwater environments. Bivalves are also known as pelecypods and lamellibranchiates.
Bivalves are sessile, benthic organisms - they occur on or below substrates. Most of them are filter-feeders, using siphons to bring in water, filter the water for tiny particles of food, then expel the used water. The majority of bivalves are infaunal - they burrow into unlithified sediments. In hard substrate environments, some forms make borings, in which the bivalve lives. Some groups are hard substrate encrusters, using a mineral cement to attach to rocks, shells, or wood.
The fossil record of bivalves is Cambrian to Recent. They are especially common in the post-Paleozoic fossil record.
This well-preserved, three-dimensional fossil bivalve shell is a false ark clam. It comes from a famous Cretaceous-aged marine deposit in western Tennessee called Coon Creek. Fossils there occur in a nearshore succession of lightly-cemented, glauconitic, clayey sands. During the Cretaceous, the lower and middle Mississippi River Valley region was below sea level - the ocean extended from Louisiana and Mississippi up north to Arkansas, western Tennessee, and the Illinois-Missouri-Kentucky tristate area.
Classification: Animalia, Mollusca, Bivalvia, Pteriomorphia, Arcoida, Arcoidea, Cucullaeidae
Stratigraphy: Coon Creek Formation (a.k.a. Coon Creek "Tongue" of the Ripley Formation), lower Maastrichtian Stage, upper Upper Cretaceous
Locality: Coon Creek site (apparently = exposures at the Coon Creek Science Center, along Hardin Graveyard Road, adjacent to Coon Creek), just northeast of the town of Leapwood, northeastern McNairy County, southwestern Tennessee, USA
Idonearca vulgaris (Morton, 1830) - fossil bivalve shell from the Cretaceous of Tennessee. (external view of a left valve; ~7.7 centimeters across at its widest)
This species is also known as Cucullaea (Idonearca) vulgaris.
Orientation: anterior to the left; posterior at right; dorsal at top; ventral at bottom
Bivalves are bilaterally symmetrical molluscs having two calcareous, asymmetrical shells (valves) - they include the clams, oysters, and scallops. In most bivalves, the two shells are mirror images of each other (the major exception is the oysters). They occur in marine, estuarine, and freshwater environments. Bivalves are also known as pelecypods and lamellibranchiates.
Bivalves are sessile, benthic organisms - they occur on or below substrates. Most of them are filter-feeders, using siphons to bring in water, filter the water for tiny particles of food, then expel the used water. The majority of bivalves are infaunal - they burrow into unlithified sediments. In hard substrate environments, some forms make borings, in which the bivalve lives. Some groups are hard substrate encrusters, using a mineral cement to attach to rocks, shells, or wood.
The fossil record of bivalves is Cambrian to Recent. They are especially common in the post-Paleozoic fossil record.
This well-preserved, three-dimensional fossil bivalve shell is a false ark clam. It comes from a famous Cretaceous-aged marine deposit in western Tennessee called Coon Creek. Fossils there occur in a nearshore succession of lightly-cemented, glauconitic, clayey sands. During the Cretaceous, the lower and middle Mississippi River Valley region was below sea level - the ocean extended from Louisiana and Mississippi up north to Arkansas, western Tennessee, and the Illinois-Missouri-Kentucky tristate area.
Classification: Animalia, Mollusca, Bivalvia, Pteriomorphia, Arcoida, Arcoidea, Cucullaeidae
Stratigraphy: Coon Creek Formation (a.k.a. Coon Creek "Tongue" of the Ripley Formation), lower Maastrichtian Stage, upper Upper Cretaceous
Locality: Coon Creek site (apparently = exposures at the Coon Creek Science Center, along Hardin Graveyard Road, adjacent to Coon Creek), just northeast of the town of Leapwood, northeastern McNairy County, southwestern Tennessee, USA
Size approx 8cm.
Superdomain: Neomura
Domain: Eukaryota
(unranked): Opisthokonta
(unranked) Holozoa
(unranked) Filozoa
Kingdom: Animalia
Subkingdom: Eumetazoa
(unranked): Bilateria
(unranked): Protostomia
Superphylum: Lophotrochozoa
Phylum: Mollusca
Subphylum: Conchifera
Class: Bivalvia
Subclass: Pteriomorphia
Order: Arcoida
Superfamily: Arcoidea
Family: Cucullaeidae
Genus: Cucullaea
Species: C. petita
Size approx 8cm.
Superdomain: Neomura
Domain: Eukaryota
(unranked): Opisthokonta
(unranked) Holozoa
(unranked) Filozoa
Kingdom: Animalia
Subkingdom: Eumetazoa
(unranked): Bilateria
(unranked): Protostomia
Superphylum: Lophotrochozoa
Phylum: Mollusca
Subphylum: Conchifera
Class: Bivalvia
Subclass: Pteriomorphia
Order: Arcoida
Superfamily: Arcoidea
Family: Cucullaeidae
Genus: Cucullaea
Species: C. petita
Size approx 8cm.
Superdomain: Neomura
Domain: Eukaryota
(unranked): Opisthokonta
(unranked) Holozoa
(unranked) Filozoa
Kingdom: Animalia
Subkingdom: Eumetazoa
(unranked): Bilateria
(unranked): Protostomia
Superphylum: Lophotrochozoa
Phylum: Mollusca
Subphylum: Conchifera
Class: Bivalvia
Subclass: Pteriomorphia
Order: Arcoida
Superfamily: Arcoidea
Family: Cucullaeidae
Genus: Cucullaea
Species: C. petita
Center: Cucullaea raea (Arcidae)
Upper left: Antarctodarwinella ellioti (Struthiolariidae)
Upper right: Eurhomalaea sp. (Veneridae)
Lower left: Worm tube (Annelida)
Lower right: Bouchardia antarctica (Brachiopoda)
From the same area as the Cucullaea shown earlier, but completely different preservation. This in hard sandstone, the earlier specimen is in very soft mudstone.
All that was visible initially were the worn pieces closest to the camera. A lucky tap revealed the rest. Usually the shell being the softest part tends to shatter.
Found several of these in the soft sandstone of the river-bank. It was a simple mattter of digging carefully around them and lifting them out in one piece.
Size approx of each shell 7cm.
Superdomain: Neomura
Domain: Eukaryota
(unranked): Opisthokonta
(unranked) Holozoa
(unranked) Filozoa
Kingdom: Animalia
Subkingdom: Eumetazoa
(unranked): Bilateria
(unranked): Protostomia
Superphylum: Lophotrochozoa
Phylum: Mollusca
Subphylum: Conchifera
Class: Bivalvia
Subclass: Pteriomorphia
Order: Arcoida
Superfamily: Arcoidea
Family: Cucullaeidae
Genus: Cucullaea
Species: C. petita
Size approx of the full shell 7cm.
Superdomain: Neomura
Domain: Eukaryota
(unranked): Opisthokonta
(unranked) Holozoa
(unranked) Filozoa
Kingdom: Animalia
Subkingdom: Eumetazoa
(unranked): Bilateria
(unranked): Protostomia
Superphylum: Lophotrochozoa
Phylum: Mollusca
Subphylum: Conchifera
Class: Bivalvia
Subclass: Pteriomorphia
Order: Arcoida
Superfamily: Arcoidea
Family: Cucullaeidae
Genus: Cucullaea
Species: C. petita