Search results for: 'alteri site 1 yogyakarta//'

An excellent pair of  Myliobatis latidens teeth. An Eagle ray species.

MC763      SIZE: 9/16"

A rare Myliobatis latidens stinger spine. An Eagle ray species.

MC768      SIZE: 11/16"

A rare Myliobatis latidens stinger spine. An Eagle ray species. Nearly complete!

MC770        SIZE: 3/4"

Beautiful set of 3 Scomeromorus teeth. Full enamel.

MC640      SIZE: 3/16"

A GEM QUALITY, EXTRA LARGE exceptionally prepared, Belenopyge estevei  trilobite. The preparation is German with all original colors and no restoration. Exceptional completeness and preservation. Great natural dark brown shell with excellent luster. The dimpled eyes are well preserved. A Lower Devonian (Pragian - 395 mya - Ihandar Fm.) trilobite from the Djebel Mrakib, Atlas Mts., Morocco. Authenticity guaranteed. Museum Quality. One of the rarer species.

XM59         Size: 1-5/16"  (1-3/16" wide)

Note - Adding 16 new Moroccan Trilobites in May 2024.    -->    Link to Moroccan Trilobites

A LARGE, High Quality Ankylosaurus osteoderm (bony armor plate) from the late Cretaceous of northern North America. Ankylosaurus and Denversaurus, a Nodosaur, were the two Ankylosaurs present in the Hell Creek and Lance Creek Formations.  A complete body osteoderm plate from an adult Ankylosaurus. The bone is excellent quality with excellent color / patina. No cracks or restoration. Legally collected on private land in the Lance Creek Fm., Niobrara Co., Wyoming. Authenticity guaranteed. A collector's quality Ankylosaurus osteoderm. I do not see large ostederms very often.

DK26         SIZE: 5"  x  4-1/2"  x 5/8"

Note - Adding 7 new Ankylosaurus - Nodosaur osteoderms in August 2025.       Link to Ankylosaur fossils catalog.

A TOP Quality Megalodon - lower jaw anterior tooth from West Java, Indonesia. This Megalodon has a tan with red highlights colored crown with a light gold colored bourlette. Highest quality enamel. Fantastic color!  The bourlette is complete. The serrations are razor sharp and complete with an excellent "needle-like" tip serration. Excellent  serrations. The root is excellent and complete with a small amount display side erosion.  Miocene Age. No repair or restoration. Authenticity Guaranteed. A very special color collector's Meg tooth.  Lower jaw teeth are up to 50 times more rare than the upper jaw teeth.

IN16        Size: 4-15/16"   (3-1/4" wide)  

Note - Adding 15 Top Quality Indonesian Megalodon Teeth in August 2025. -> Link To TQ Indonesian Megs

A LARGE, Top Quality Ankylosaurus osteoderm (bony armor plate) from the late Cretaceous of northern North America. Ankylosaurus and Denversaurus, a Nodosaur, were the two Ankylosaurs present in the Hell Creek and Lance Creek Formations.  A complete body osteoderm plate from an adult Ankylosaurus. The bone is excellent quality with excellent color / patina. Well preserved vascular channels. No cracks or restoration. Legally collected on private land in the Lance Creek Fm., Niobrara Co., Wyoming. Authenticity guaranteed. A collector's quality Ankylosaurus osteoderm. I do not see large ostederms very often.

DK25         SIZE: 5"  x  3-3/4"  x 1/2"

Note - Adding 7 new Ankylosaurus - Nodosaur osteoderms in August 2025.       Link to Ankylosaur fossils catalog.

A LARGE, Top Quality Pachychephalosaurus wyomingensis pes ungual (foot claw) from the late Cretaceous of northern North America. An April Fossil of the Month. Pachychephalosaurus is the dinosaur which is famous for its large domed head surrounded by spikes. This ungual has exceptional color and patina. Overall an excellect pes ungual. Note - this ungual exbibits the "Pachy twist " (see Pachy ungual differentiation discussion below). No repair or restoration. An ultra rare Pachy pes ungual! Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. An exceptional collector's quality Pachychephalosaurus ungual. Museum quality. My largest Pachy claw. Note - claw comes with a Riker type frame. Authenticity guaranteed. Authenticity guaranteed.

DP21       SIZE: 2"   

Note - Adding 6 new Pachy spikes, claws, and teeth in February  2025.    Link to Pachy fossils catalog

An EXTRA LARGE, Colorful, Top Quality Megalodon - upper jaw anterior tooth from West Java, Indonesia. An August Fossil of the Month. This Megalodon has a BLACK with silver & tan colored crown with an excellent brown colored bourlette. Highest quality enamel. Fantastic color!  The bourlette is complete. The serrations are razor sharp with a razor sharp tip serration. Excellent serrations. The root is excellent with a nicely articulated surface, extra wide and complete. No display side erosion. Miocene Age. No repair or restoration. Authenticity Guaranteed. A very special color collector's Meg tooth. Note - This tooth comes with a custom display stand as shown in the final photo. 

IN101        Size: 6-1/8"   (4-13/16" wide)  

Note - Adding 15 Top Quality Indonesian Megalodon Teeth in August 2025. -> Link To TQ Indonesian Megs

A Colorful, Top Quality Megalodon - lower jaw anterior tooth from West Java, Indonesia. This Megalodon has a tan with brown highlights colored crown with a brown & golden tan colored bourlette. Highest quality enamel. Fantastic color!  The bourlette is large & complete. The serrations are razor sharp and nearly complete. Excellent  serrations. The root is excellent with a nicely articulated surface & complete with no erosion.  Miocene Age. No repair or restoration. Authenticity Guaranteed. A very special color collector's Meg tooth. Note - This tooth comes with a custom display stand as shown in the final photo. The lower jaw teeth are up to 50 times more rare than the upper jaw teeth.

IN09        Size: 5-3/8"   (3-1/2" wide)  

Note - Adding 15 Top Quality Indonesian Megalodon Teeth in August 2025. -> Link To TQ Indonesian Megs

An EXTRA LARGE, Top Quality Crotalocephalina gibbus trilobite from Morocco. The preparation is German with all original colors and no restoration. Great natural greenish black shell with excellent luster. The specimen is fully exposed including the base on the cephalon and very nicely displayed. A Lower Devonian trilobite  (395 mya) from the Hamar Laghdad area, Atlas Mts., Morocco. Authenticity guaranteed. Museum Quality specimen. 

XM08          Size: 3-1/8"

Note - Adding 16 new Moroccan Trilobites in May 2024.    -->    Link to Moroccan Trilobites