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Mollusca, part 1

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Mollusca, part 4

Fossil Specimen Index

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Phylum Mollusca, part 3

Click on specimens to enlarge
   


Mollusca 27

Phylum Mollusca
Class Cephalopoda
Subclass Ammonoidea
Family Amaltheidae
Genus Pleuroceras Hyatt, 1868

Ammonite: Pleuroceras costatus

5 cm

Lias, Untershurmig, Germany, Jurassic

Half of specimen cut and polished to
show internal structure


$ 75

   




Mollusca 28

Phylum Mollusca
Class Cephalopoda
Subclass Ammonoidea
Genus: Phlyseogrammoceras

Ammonite: Pseudogrammoceras latescens

1.5 cm


Toarcian, Duex-Serves, France, Jurassic

$ 35

   

Mollusca 29


Phylum Mollusca
Class Cephalopoda
Subclass Ammonoidea
Genus Phlyseogrammoceras

Ammonite: Phlyseogrammoceras dispansum

1.25 cm

Toarcian, Cornus, Aveyron, France, Jurassic

Specimen replaced with pyrite

$ 20


   

Mollusca 30

Phylum Mollusca
Class Cephalopoda
Subclass Ammonoidea
Genus Pseudogrammoceras

Ammonite: Pseudogrammoceras pachu

2.5 cm

Toarcian, Deux-Serres, France, Jurassic

Specimen replaced with pyrite; detail on surface shown excellent while under side was partly decayed before replacement could occur

SOLD
   


Mollusca 31

Phylum Mollusca
Class Cephalopoda
Subclass Ammonoidea
Genus Parawedekindia

Ammonite: Parawedekindia arduennensis

2 cm

Upper Oxford clay, Warboys, Huntingdonshire, England, late Jurassic

Rock matrix is present on innermost coil (on both sides) which could not be removed

$ 20

   


Mollusca 32

Phylum Mollusca
Class Cephalopoda
Subclass Ammonoidea
Genus Pseudogrammoceras
Ammonite:
Pseudogrammoceras differens pseudostruckmanni
3.2 cm

Toarcian, Thorigne,
Deux-Sevres, France, Jurassic

$ 60

   



Mollusca 33

Phylum Mollusca
Class Bivalvia
Order Carditoida
Genus Crassatelites

Bivalve: Crassatelites vadosus

Coon Creek Tongue, Ripley Fm., McNairy Co., Tennessee, late Cretaceous

single shell (4 x 5.5 cm) on rock matrix

$ 14

   

Mollusca 34

Phylum Mollusca
Class Cephalopoda
Subclass Ammonoidea
Order Ammonitida
Family Dactylioceratidae
Genus: Dactylioceras Hyatt, 1867

Ammonite: Dactylioceras

7 cm

 Yorkshire, Great Britain lower Jurassic

one section sliced and polished

$ 32
 



Mollusca 35

Phylum Mollusca
Class Cephalopoda
Subclass Ammonoidea
Order Ammonitida
Family Hildoceratidae
Genus: Grammoceras Hyatt, 1867

Ammonite: Grammoceras soemani

5 cm

LeClapier, Aveyron, France, Jurassic

This is a genus where the suture lines are difficult to see without magnification

$ 95
 



Mollusca 36

Phylum Mollusca
Class Cephalopoda
Subclass Ammonoidea
Genus Cosmoceras

Ammonite: Cosmoceras duncani spinosus

3.5 cm

Oxford Clay, North Hampstonshire,
England, Jurassic

 Sutures are visible on this specimen, but are easy to locate with proper lighting; good preservation

$ 100
 



Mollusca 37

Phylum Mollusca
Class Cephalopoda
Subclass Ammonoidea
Order Goniatitida
Genus: Goniatites De Haan, 1825

Ammonite:  Goniatites americanus

1.75 cm


Delaware Creek Mbr., Caney Shale Fm,
Clarita, Coal Co., Oklahoma, late Mississippian


Specimen has a ball shape; sits on rock matrix of the Caney Shale Formation

$ 80
 



Mollusca 38

Phylum Mollusca
Class Cephalopoda
Subclass Ammonoidea
Genus Cosmoceras

Ammonite: Cosmoceras aculeatum

2.5 cm

Rjazan region,
Michailow, Russia

This cephalopod with minerals giving a shiller effect to shell (red to green-blue) colors

$125
 



Mollusca 39

Phylum Mollusca
Class Cephalopoda
Subclass Ammonoidea
Order Ammonitida
Genus: Hildoceras Hyatt, 1876

Ammonite: Hildoceras bifrons

2.75 x 3.5 cm

Toarcian, LeClapier, Aveyron,
France, Jurassic


This is another ammonite replaced by pyrite;
it has good suture preservation


SOLD
 



Mollusca 40

Phylum Mollusca
Class Cephalopoda
Subclass Ammonoidea
Genus Holcophylloceras

Ammonite: Holcophylloceras nillsoni

2.5 cm


Toarcian, LeClapier, France, Jurassic

Specimen is pyrite replaced with small gaps between adjacent segments giving an exellent view of suture structure

$ 125
 



Mollusca 41

Phylum Mollusca
Class Cephalopoda
Subclass Ammonoidea
Order Ammonitida
Family Craspeditidae
Genus: Craspedites Pavlow, 1892

Ammonite: Craspedites mosquensis

large specimen 3.4 x 3.4 cm
small one 2.3 x 2.3 cm

Saratow, Russia, late Jurassic  (late Volgian)

two ammonites on matrix both covered with a highly reflective blue nacreous material; both ammonites are decisively round in shape

 SOLD
 



Mollusca 42

Phylum Mollusca
Class Cephalopoda
Subclass Ammonoidea
Order Goniatitida
Genus Eothinites

Ammonite: Eothinites autubensis

3 x 3.5 cm

Artinskian, South Ural Mnts., Russia, Permian

The ammonites outer shell covering was not completely preserved on outer whorl; exposed layer still very interesting as suture lines are still visible especially on top edge near where the surface is less preserved

$ 50
 



Mollusca 43


Phylum Mollusca
Class Cephalopoda
Subclass Ammonoidea
Genus Costilioceras

Ammonite: Costilioceras holzapfeli

1.85 cm

Aveyron, France, Toarcian, Jurassic

Specimen is pyrite replaced; note the color shown is actual with a reddish tone

$ 45
 



Mollusca 44

Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Genus: Osperlioceras

Ammonite: Osperlioceras bicarinatus

right: small, young specimen: 1.5 x 2 cm

$ 20

left: larger specimen:  1.7 x 2.3 cm

$ 50

Cornus, Aveyron, France, Jurassic (Toarcian)

Both specimens are pyrite replaced

 
 

MS Book and Mineral Company

Mollusca, part 1

Mollusca, part 2

Mollusca, part 4

Fossil Specimen Index

Paleontology Index

Place an Order

Catalogs on this Website