Tumbled Fossil Stone Gastropoda Gastropods 2.3 to 9.9 g size pcs 150 Gram Lot

Description

Well tumbled Natural Fossil Gastropoda (Gastropods) Stone (small size pieces) - 0.15 Kg Lot (0.33 pound)
Weight per piece: 2.3 to 9.9 gram
Sizes:  9x14x16 mm to 16x18x20 mm
Quantity: about 21 to 38 pieces in each lot
These fossil stones are from China.
The pictures in the listing are just for reference as we are selling multiple lots with same pictures.
***
Gastropoda (Gastropods)
The class Gastropoda or gastropods (also previously known as univalves and sometimes also spelled Gasteropoda) form a major part of the phylum Mollusca. Gastropods are more commonly known as snails and slugs.
Selltotheworld
From all around the world
Tumbled Fossil Stone Gastropoda Gastropods 2.3 to 9.9 g size pcs 150 Gram Lot
Well tumbled Natural
Fossil Gastropoda (Gastropods) Stone
(small size pieces) - 0.15 Kg Lot (0.33 pound)
Weight per piece: 2.3 to 9.9 gram
Sizes:  9x14x16 mm to 16x18x20 mm
Quantity: about 21 to 38 pieces in each lot
These fossil stones are from China.
The pictures in the
listing
are
just for reference as we are selling multiple
lots with same pictures.
***
Gastropoda (Gastropods)
The class
Gastropoda
or
gastropods
(also previously known as
univalves
and sometimes also spelled Gasteropoda) form a major part of the phylum Mollusca. Gastropods are more commonly known as
snails and slugs
.
This is the most diversified class in the phylum, with 60,000 to 80,000 living species.
There are 409 recent families of gastropods. Fossil gastropods represent another 202 families. This class of animals is second only to insects in its number of known species.
The
Gastropoda
or
gastropods
, more commonly known as
snails and slugs
, are a large taxonomic class within the phylum Mollusca. The class Gastropoda includes snails and slugs of all kinds and all sizes from microscopic to large. There are many thousands of species of sea snails and sea slugs, as well as freshwater snails, freshwater limpets, land snails and land slugs.
The class Gastropoda contains a vast total of named species, second only to the insects in overall number. The fossil history of this class goes back to the Late Cambrian. There are 611 families of gastropods, of which 202 families are extinct and appear only in the fossil record.
The first gastropods were exclusively marine, with the earliest representatives of the group appearing in the Late Cambrian (
Chippewaella
,
Strepsodiscus
). Early Cambrian forms like
Helcionella
and
Scenella
are no longer considered gastropods, and the tiny coiled
Aldanella
of earliest Cambrian time is probably not even a mollusk. By the Ordovician period the gastropods were a varied group present in a range of aquatic habitats. Commonly, fossil gastropods from the rocks of the early Palaeozoic era are too poorly preserved for accurate identification. Still, the Silurian genus
Poleumita
contains fifteen identified species. Fossil gastropods were less common during the Palaeozoic era than bivalves.
Most of the gastropods of the Palaeozoic era belong to primitive groups, a few of which still survive. By the Carboniferous period many of the shapes seen in living gastropods can be matched in the fossil record, but despite these similarities in appearance the majority of these older forms are not directly related to living forms. It was during the Mesozoic era that the ancestors of many of the living gastropods evolved.
In rocks of the Mesozoic era, gastropods are slightly more common as fossils, their shells are often well preserved. Their fossils occur in ancient beds deposited in both freshwater and marine environments.
Rocks of the Cenozoic era yield very large numbers of gastropod fossils, many of these fossils being closely related to modern living forms. The diversity of the gastropods increased markedly at the beginning of this era, along with that of the bivalves.
Certain trail-like markings preserved in ancient sedimentary rocks are thought to have been made by gastropods crawling over the soft mud and sand. Although these trails are of debatable origin, some of them do resemble the trails made by living gastropods today.
Item Specifics
Country of Manufacture :
China
Country/Region of Manufacture :
China
Modified Item :
No
Payment
By Paypal
Shipping
Free shipping cost.
We send the goods to USA, Canada, UK, Australia, New Zealand, EU countries and some other European and Asian countries by E-express, a kind of fast postal service by Hong Kong Post. It usually takes about 6 to 10 working days for delivery.
We send the goods to other countries by registered airmail and will take about 8 to 14 working days for delivery.
Returns
Returns: We accept returns with any reason in 30 days.
Contact Us
We will answer buyer messages within 24 hours during working days.
Selltotheworld
From all around the world
DESCRIPTION
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Tumbled Fossil Stone Gastropoda Gastropods 2.3 to 9.9 g size pcs 150 Gram Lot
Well tumbled Natural
Fossil Gastropoda (Gastropods) Stone
(small size pieces) - 0.15 Kg Lot (0.33 pound)
Weight per piece: 2.3 to 9.9 gram
Sizes:  9x14x16 mm to 16x18x20 mm
Quantity: about 21 to 38 pieces in each lot
These fossil stones are from China.
The pictures in the
listing
are
just for reference as we are selling multiple
lots with same pictures.
***
Gastropoda (Gastropods)
The class
Gastropoda
or
gastropods
(also previously known as
univalves
and sometimes also spelled Gasteropoda) form a major part of the phylum Mollusca. Gastropods are more commonly known as
snails and slugs
.
This is the most diversified class in the phylum, with 60,000 to 80,000 living species.
There are 409 recent families of gastropods. Fossil gastropods represent another 202 families. This class of animals is second only to insects in its number of known species.
The
Gastropoda
or
gastropods
, more commonly known as
snails and slugs
, are a large taxonomic class within the phylum Mollusca. The class Gastropoda includes snails and slugs of all kinds and all sizes from microscopic to large. There are many thousands of species of sea snails and sea slugs, as well as freshwater snails, freshwater limpets, land snails and land slugs.
The class Gastropoda contains a vast total of named species, second only to the insects in overall number. The fossil history of this class goes back to the Late Cambrian. There are 611 families of gastropods, of which 202 families are extinct and appear only in the fossil record.
The first gastropods were exclusively marine, with the earliest representatives of the group appearing in the Late Cambrian (
Chippewaella
,
Strepsodiscus
). Early Cambrian forms like
Helcionella
and
Scenella
are no longer considered gastropods, and the tiny coiled
Aldanella
of earliest Cambrian time is probably not even a mollusk. By the Ordovician period the gastropods were a varied group present in a range of aquatic habitats. Commonly, fossil gastropods from the rocks of the early Palaeozoic era are too poorly preserved for accurate identification. Still, the Silurian genus
Poleumita
contains fifteen identified species. Fossil gastropods were less common during the Palaeozoic era than bivalves.
Most of the gastropods of the Palaeozoic era belong to primitive groups, a few of which still survive. By the Carboniferous period many of the shapes seen in living gastropods can be matched in the fossil record, but despite these similarities in appearance the majority of these older forms are not directly related to living forms. It was during the Mesozoic era that the ancestors of many of the living gastropods evolved.
In rocks of the Mesozoic era, gastropods are slightly more common as fossils, their shells are often well preserved. Their fossils occur in ancient beds deposited in both freshwater and marine environments.
Rocks of the Cenozoic era yield very large numbers of gastropod fossils, many of these fossils being closely related to modern living forms. The diversity of the gastropods increased markedly at the beginning of this era, along with that of the bivalves.
Certain trail-like markings preserved in ancient sedimentary rocks are thought to have been made by gastropods crawling over the soft mud and sand. Although these trails are of debatable origin, some of them do resemble the trails made by living gastropods today.
Item Specifics
Country of Manufacture :
China
Country/Region of Manufacture :
China
Modified Item :
No
Payment
By Paypal
Shipping
Free shipping cost.
We send the goods to USA, Canada, UK, Australia, New Zealand, EU countries and some other European and Asian countries by E-express, a kind of fast postal service by Hong Kong Post. It usually takes about 6 to 10 working days for delivery.
We send the goods to other countries by registered airmail and will take about 8 to 14 working days for delivery.
Returns
Returns: We accept returns with any reason in 30 days.
Contact Us
We will answer buyer messages within 24 hours during working days.
All right reserved.
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