Specimen: Conlinoceras tarrantense Grouping Age: Cretaceous (95 million years ago) Location: Tarrant County, TX Formation: Tarrant/Woodbine formation Group Size: 12.00 inches x 9 inches Weight: 19.4 lbs. Description: Very Large assemblage of brown shelled ammonites; Not a common find for this locality; Hand prepared using micro-abrasive and air scribe to free from enclosing concretion; exterior of two ammonites have various sized oysters still attached. Price: $ 845.00
	Specimen: Mortoniceras (Drakeoceras) drakei Age: Cretaceous (102 M years ago) Location: Denton County, TX. Formation: Fort Worth Formation Size: (diameter): 5 1/2 inches Weight: < 1.0 lbs ( < 0.36 kilograms ) Description : Grayish colored limestone ammonite. Suture pattern visable and backside shows some parasitic oysters Price : $ 62.00
	Specimen: Conlinoceras Tarrantense Age: Cretaceous (95 M years ago) Location: Tarrant County, TX. Formation: Tarrant Formation. Size (diameter): 7.5 inches Weight: 5.0 lbs Description: Septarian shelled ammonite found in a concretion from the Tarrant Formation. Calcite veins are preserved during fossil preparation. This zone is between the Eagle Ford Shale and Woodbine Sandstone formation. Fossil locality exposed along highway 360 during construction of Red River Ranch apartments. Very difficult to find the septarian ammonites since 2004. Price: $ 450.00
	Specimen: Eopachydiscus sp. Age: Cretaceous (100 - 102 M years ago) Location: Tarrant County, TX. Formation: Duck Creek Formation Size: (diameter): 12.0 inches Weight: 18.4 lbs ( 8.35 kilograms ) Description : Large Texas Limestone ammonite. Suture pattern visible on one side. Backside picture shows a weathered and unprepared side. Often these ammonites are slightly compressed, not allowing fossil preparation on both sides. Shipping these large ammonites costs from $86.00 to $160.00 range. Local pickup or local delivery is preferred. Price : $ 169.00
	Specimen: Eopachydiscus sp. Age: Cretaceous (100 - 102 M years ago) Location: Tarrant County, TX. Formation: Duck Creek Formation Size: (diameter): 13.5 inches Weight: 25.4 lbs ( 11.5 kilograms ) Description : Large Texas Limestone ammonite. Suture pattern visible on one side. Backside picture shows a weathered and unprepared side. Often these ammonites are slightly compressed, not allowing fossil preparation on both sides. Shipping these large ammonites costs from $86.00 to $160.00 range. Local pickup or local delivery is preferred. Price: $ 185.00
	Specimen: Eopachydiscus sp. Age: Cretaceous (100 - 102 M years ago) Location: Tarrant County, TX. Formation: Duck Creek Formation Size: (diameter): 15.0 inches Weight: 27.0 lbs ( 12.0 kilograms ) Description : Large Texas Limestone ammonite. Suture pattern visible on one side. Backside picture shows a weathered and unprepared side. Often these ammonites are slightly compressed, not allowing fossil preparation on both sides. Shipping these large ammonites costs from $86.00 to $160.00 range. Local pickup or local delivery is preferred. Price: $ 190.00
	Specimen: Eopachydiscus sp. Age: Cretaceous (100 - 102 M years ago) Location: Tarrant County, TX. Formation: Duck Creek Formation Size: (diameter): 16.0 inches Weight: 40.0 lbs ( 18.1 kilograms ) Description : Large Texas Limestone ammonite. Suture pattern visible on one side. Backside picture shows a weathered and unprepared side. Often these ammonites are slightly compressed, not allowing fossil preparation on both sides. Shipping these large ammonites costs from $86.00 to $160.00 range. Local pickup or local delivery is preferred. Price: $ 250.00
	Specimen: Mortoniceras whitneyi, (Young) 1957 Age: Lower Cretaceous (103 M years ago) Location: Denton County, TX. Formation: Fort Worth Formation Size (diameter): 11.0 inches, Weight: 13.4 lbs, Description: Medium sized ammonite with the center whorls preserved on one side. Backside center whorls are not completely prepared due to difficult fossil preservation. Darker iron oxide stained fossil exterior. Both sun/rain will typically weather the oxide, leaving the fossil ammonites gray to whitish in color. This ammonite was exposed at a Justin Texas construction site. Price: $ 224.00
	Specimen: Mortoniceras (Drakeoceras) Drakei Age: Lower Cretaceous (103 M years ago) Formation: Fort Worth Formation. Location : Denton County, TX. Size: (diameter): 2.5" larger, 1.0" smaller. Weight: 1.0 lbs Description: Two of the same species of ammonite displayed on a block of limestone matrix. Here is another set of ammonites with a iron oxide coloration, coming from a construction site in Justin Texas. These ammonites are found up to 6.5 inches diameter. Price: $ 54.00
	Specimen: Conlinoceras tarrantense Age: Cretaceous (95 M years ago) Location: Tarrant County, TX. Formation: Tarrant Formation. Size (diameter): 6.0 inches Weight: 2.6 lbs Description: Shelled ammonite found in a sandy shale zone in the Tarrant Formation. This zone is between the Eagle Ford Shale and Woodbine Sandstone formation. Exact location is the Little Bear Creek/ Highway 360 site. Price: ( SOLD )
	Specimen: Mortoniceras equidistans ( Adkins, 1928 ) Age: Lower Cretaceous (103 M years ago) Location: Denton County, TX. Formation: Fort Worth Formation Size (diameter): 12.5 inches Weight: 21.4 lbs ( 9.71 kilograms ) Description: Large limestone ammonite found North of Justin Texas, from the Fort Worth Formation. Front side prepared with a pectin attached. Backside is not prepared. Fossil specimen comes with stand. Price: $ SOLD
	Specimen: Conlinoceras tarrantense Age: Cretaceous (95 M years ago) Location: Tarrant County, TX. Formation: Tarrant Formation. Size (diameter): 5.0 inches Weight: 0.8 lbs Description: Partially shelled ammonite found in a sandy shale zone in the Tarrant Formation. Oyster attached to one end. This zone is between the Eagle Ford Shale and Woodbine Sandstone formation. Exact location is the Little Bear Creek/ Highway 360 site. Price: $ 55.00
	Specimen: Conlinoceras tarrantense Age: Cretaceous (95 M years ago) Location: Tarrant County, TX. Formation: Tarrant Formation. Size (diameter): 4.5 inches Weight: 9.0 lbs Description: Brown shelled ammonite found in a concretion from the Tarrant Formation. Fossil prepared leaving most of the concretion intact. This zone is between the Eagle Ford Shale and Woodbine Sandstone formation. Exact location is the Little Bear Creek/ Highway 360 site. Price: $ 64.00
	Specimen: Set of Conlinoceras tarrantense ammonites Age: Cretaceous (95 M years ago) Location: Tarrant County, TX. Formation: Tarrant Formation. Size (diameter): Ammonite Set is 3.0, 2.5, 1.5 inches Weight: 0.5 lbs Description: Set of three ammonites from the Tarrant formation. Exact location is the Little Bear Creek/ Highway 360 site. Price: $ SOLD
	Specimen: Conlinoceras tarrantense Age: Cretaceous (95 M years ago) Location: Tarrant County,Arlington TX. Size (diameter): 8.0 inches Weight: < 5.6 lbs ( 2.54 kilograms ) Description: Large sized Conlinoceras tarrantense ammonite from Tarrant Formation. This specimen has small collection of shells in center whorl, on the backside of the ammonite. It was found at a construction site, along route 360 in Arlington Texas. These larger specimens are more difficult to find. Largest specimen found to date is a monster 10 inch ammonite, currently owned by a collector in Houston Texas. Price: $ 345.00
	Specimen: Conlinoceras tarrantense Age: Cretaceous (95 M years ago) Location: Tarrant County, Arlington TX. Size (diameter): 7.75 inches Weight: 5.6 lbs ( 2.54 kilograms ) Description: Large sized ammonite from Tarrant Formation. Oysters attached to the front side of the ammonite have been saved. The backside does not have the oysters, as this side must have been immersed in sediment. Price: $ 396.00
	Specimen: Conlinoceras tarrantense Age: Cretaceous (95 M years ago) Location: Tarrant County, Arlington TX. Formation: Tarrant Formation Size (diameter): 7.0 inches Weight: 4.2 lbs ( 1.91 kilograms ) Description: Texas ammonite from Tarrant Formation. Shell is coated with Serpula worm tubes. The Serpula are preserved and not removed during fossil preparation. This is a septarian ammonite as the calcite veins have been preserved during fossil preparation. Price: $ 289.00
	Specimen: Calycoceras Tarrantense Age: Cretaceous (95 M years ago) Location: Tarrant County, TX. Size (diameter): 6.5 inches Weight: < 3.4 lbs Description: Medium size ammonite with septarian calcite veins from Tarrant Formation. Price: $ SOLD
	Specimen: Calycoceras Tarrantense Age: Cretaceous (95 M years ago) Location: Tarrant County, TX. Size (diameter): 3.5 inches Weight: < 1.0 lbs Description: Smaller size ammonite from Tarrant Formation. Price: $ SOLD
	Specimen: Calycoceras Tarrantense Age: Cretaceous (95 M years ago) Location: Tarrant County, TX. Size (diameter): 8.25 inches Weight: < 7.0 lbs Description: Larger size ammonite from Tarrant Formation. Ammonite has oyster attachments. Price: $ SOLD
	Specimen: Calycoceras Tarrantense Age: Cretaceous (95 M years ago) Location: Tarrant County, TX. Size (diameter): 4.5 inches Weight: < < 1.0 lbs Description: Smaller size ammonite from Tarrant Formation. Oysters attached to exterior of shell with small worm tubes. Septarian calcite veins on both sides of ammonite. Price: $ SOLD
	Specimen: Calycoceras Tarrantense Age: Cretaceous (95 M years ago) Location: Tarrant County, TX. Size (diameter): 7.0 inches Weight: < 4.2 lbs Description: Larger septarian ammonite from Tarrant Formation. Overall ammonite is compressed prior to fossilization and some damage shows on backside. Partial inner whorls collapsed prior to fossilization on backside. Taupe colored shell with many septarian calcite veins. Price: $ SOLD
	Specimen: Calycoceras Tarrantense Age: Cretaceous (95 M years ago) Location: Tarrant County, TX. Size (diameter): 6.75 inches, 8.5 inches tall Weight: < 9.0 lbs Description: Medium sized ammonite from Tarrant Formation. This specimen is perched on a oyster pod. Taupe colored shell Price: $ SOLD
	Specimen: Calycoceras Tarrantense Age: Cretaceous (95 M years ago) Location: Tarrant County, TX. Size (diameter): 7.0 inches Weight: < 5.0 lbs Description: Nice sized septarian ammonite from Tarrant Formation. Taupe colored shell Price: $ SOLD
	Specimen: Calycoceras Tarrantense Age: Cretaceous (95 M years ago) Location: Tarrant County, TX. Size (diameter): 6.0 inches Weight: < 3.4 lbs Description: Medium sized septarian ammonite from Tarrant Formation. One side is covered with oysters, back side is not covered in oysters. Price: $ SOLD
	Specimen: Calycoceras Tarrantense Age: Cretaceous (95 M years ago) Location: Tarrant County, TX. Size (diameter): 4.75 inches Weight: < 1.0 lbs Description: Smaller sized ammonite from Tarrant Formation. Price: $ SOLD
	Specimen: Mortoniceras whitneyi, (Young) 1957 Age: Lower Cretaceous (103 M years ago) Location: Denton County, Justin, TX. Formation: Fort Worth Formation Size (diameter): 11.0 inches, Weight: 12.4 lbs, Description: Cut & Polished ammonite halves. Shows internal chamber outlines. Paleontologists suggest the fossil ammonite added a new chamber for each year of life. The large non-chambered section at the fossil end, is the "living chamber" where the fossil ammonite lived. Price: $ SOLD
	Specimens: Eopachydiscus sp. Age: Lower Cretaceous (102 M years ago) Location: West of Fort Worth, Texas, Duck Creek Formation Size (diameter): 15.0" inches Weight: 36.0 lbs Description: Large Texas Ammonite. Found in the Duck Creek Formation. Suture pattern has been enhanced. Price: $ SOLD
	Specimens: Eopachydiscus sp. Age: Lower Cretaceous (102 M years ago) Location: West of Fort Worth, Texas, Duck Creek Formation Size (diameter): 13.0" inches Weight: 21.6 lbs Description: Medium sized Texas Ammonite. This ammonite has been sliced in half to show the typical internal patterns found in limestone ammonites from the Duck Creek Formation. The fossil is an internal mold that shows the suture pattern ( both halves ) on the inside. The right hand picture is a close-up of one half of the ammonite. Price: $ 185.00 (for pair) Includes stands for each half
	Specimens: Eopachydiscus sp. Age: Lower Cretaceous (102 M years ago) Location: West of Fort Worth, TX. Size (diameter): 16.0" inches Weight: 37.4 lbs Description: Medium sized Texas Ammonite. This ammonite has been sliced in half to show the typical internal patterns found in limestone ammonites from the Duck Creek Formation. The fossil is an internal mold that shows the suture pattern ( both halves ) on the inside. The right hand picture is a close-up of one half of the ammonite; Smaller ammonite discovered in living chamber and can be seen in photo; Price: $185.00 (for pair) Includes stands for each half
	Specimens: Eopachydiscus sp. Age: Lower Cretaceous (102 M years ago) Location: Waco, TX. Duck Creek Formation Size (diameter): 14.0" inches Weight: 34.4 lbs Description: Medium sized Texas Ammonite. This ammonite has been sliced in half to show the typical internal patterns found in limestone ammonites from the Duck Creek Formation. The fossil is an internal mold that shows the suture pattern ( both halves ) on the inside. The right hand picture is a close-up of one half of the ammonite. Price: 185.00 (for pair) Includes stands for each half
no back image available at this time	Specimens: Cut and buffed Eopachydiscus halves Age: Lower Cretaceous (102 M years ago) Location: Waco, TX. Size (diameter): 11.3" inches Weight: 16.1 lbs Description: Texas limestone ammonite cut in half. Septa are shown with assorted fossil debris showing up in the living chamber. Price: SOLD

Ammonites - Cut & Polished
Region: United States - Texas

	Specimen: Calycoceras Tarrantense Age: Cretaceous (95 million years ago) Formation: Tarrant Formation Location: Tarrant County, TX Diameter: 6.0 inches ( 15.24 centimeters ) Weight: < 1.0 lbs. ( 0.45 kilogram ) Description: Cut and highly polished ammonite from Tarrant Formation. Price: $ SOLD
	Specimen: Calycoceras Tarrantense Age: Cretaceous (95 million years ago) Location: Tarrant County, TX Diameter: < 4.0 inches ( 10.16 centimeters ) Weight: < 1.0 lbs. Description: Cut and highly polished ammonite from Tarrant Formation. Price: ( $ SOLD )
	Specimen: Calycoceras Tarrantense Age: Cretaceous (95 million years ago) Location: Tarrant County, TX Diameter: < 3.0 inches ( 7.62 centimeters ) Weight: < 1.0 lbs. Description: Cut and highly polished ammonite from Tarrant Formation. Price: ( $ SOLD )
	Specimen: Calycoceras Tarrantense Age: Cretaceous (95 million years ago) Location: Tarrant County, TX Diameter: < 4.0 inches ( 10.16 centimeters ) Weight: < 1.0 lbs. Description: Cut and highly polished ammonite from Tarrant Formation. Price: ( $ SOLD )
	Specimen: Calycoceras Tarrantense Age: Cretaceous (95 million years ago) Location: Tarrant County, TX Diameter: 4.0 inches (10.16 centimeters) Weight: < 1.0 lbs. Description: Cut and highly polished ammonite from Tarrant Formation. Price: $ SOLD
	Specimen: Calycoceras Tarrantense Age: Cretaceous (95 million years ago) Location: Tarrant County, TX Diameter: 5.0 inches (12.7 centimeters) Weight: < 1.0 lbs. Description: Cut and highly polished ammonite from Tarrant Formation. Price: $ SOLD
	Specimen: Calycoceras Tarrantense Age: Cretaceous (95 million years ago) Location: Tarrant County, TX Diameter: 4.5 inches (11.43 centimeters) Weight: < 1.0 lbs. Description: Cut and highly polished ammonite from Tarrant Formation. Price: $ SOLD
	Specimen: Calycoceras Tarrantense Age: Cretaceous (95 million years ago) Formation: Tarrant Formation Location: Tarrant County, TX Diameter: 6.0 inches (15.24 centimeters) Weight: < 1.0 lbs. ( 0.45 kilograms ) Description: Cut and highly polished ammonite from Tarrant Formation. Price: $ SOLD
	Specimen: Calycoceras Tarrantense Age: Cretaceous (95 million years ago) Location: Tarrant County, TX Formation: Tarrant Formation Diameter: 6.0 inches (15.24 centimeters) Weight: < 1.0 lbs. ( 0.45 kilograms ) Description: Cut and highly polished ammonite from Tarrant Formation. Price: $ SOLD
	Specimen: Calycoceras Tarrantense Age: Cretaceous (95 million years ago) Location: Tarrant County, TX Diameter: 6.5 inches (16.51 centimeters) Weight: < 1.0 lbs. Description: Cut and highly polished ammonite from Tarrant Formation. Price: $ SOLD pair

Cretaceous Echinoids
Region: United States - Texas
 

Specimen: Leptosalenia texana ( Credner 1875 ), formally Salena Texana Age: Cretaceous (95 M years ago) Location: Comal County, TX. Size (diameter): 2.5 centimeters, Weight: .01 lbs, Description: Mint condition Texas Echinoid. Excellent detail. Price: $3.00 each or 10 specimens for $25.00     Domestic or International Shipping Selection Once shipping cost e-mailed, the fee will show up in this item. Select this box if paying by credit card Price: $0.00