Formation: wolchow river, St Petersburg region. Age: Ordovician. Size: 3.8 cms. Comments: Very rare trilobite from the Ordovician of St. Petersburg, the specie Krattaspis paraspinosis (Hanson 2010) has been recently described, the cleaning work has been excellent, also you can see the hipostoma. A very espectacular trilobite.
Formation: Marjum Formation, Millard County, Utah. Age: Cambrian. Size: 7.5 cms. Comments: Beautiful specimen of Olenoides nevadensis, due to the process of fossilization, has the distinction of having two colors in the same trilobite. You can easy see the axial and occipital spines, it has a good size for the species.
Formation: Walcott-Rust, New York. Age: Ordovician. Size: 2.7 cms Comments: Scarce trilobite of this famous formation, the size is normal for the species Nanillaenus americanus, as you can see it has a large and robust cefalon, compared with the rest of the trilobite. Exemplary in very good state of conservation of this rare species.
Formation: Marjum Formation, Utah. Age: Cambrian. Size: 10.5 cms. Comments: The species Hemirhodon amplipyge are trilobites which has a good size, this one is larger than the average. In this species in particular, it´s not easy to find them with the cefalon complete, in many cases the area of the librigena is missing.This one is [...]
Formation: Saint Chinian, Montaige noire. Age: Ordovician. Size: body 1.2 cms, all the trilobite 3.3 cms Comments: Good example of this famous formation, they are not as easy to found as their "brothers" from Morocco, in Morocco is not difficult to see the Ampyx in line with 5 or more trilobites, the theories says that [...]
Formation: St. Petersburg Age: Ordovician. Size: 7.7cms Comments: This trilobite has an identifying feature very special, its long "nose", Metopolichs platyrhinus is a very rare lichid. In the Ordovician of St. Petersburg have been described seven species of Metopolichas.
Formation: Rosella Formation, Dease River British Columbia Age: Cambrian. Size: 4.2 cms. Comments: Excellent Olenellus, with a very good quality of fossilitzation, the best part of this trilobite is the pigidium, one the the best I ever see, all complete with all the details.
Formation: Sica sica, Belen Formation,La Paz, Bolivia Age: Devonian. Size: 4.7 cms Comments: Rare lichid from Bolivia, this Acanthopyge balliviani has also the negative, many trilobites species have been found in this formationan, that we will show in the future, this is one of the most rare.
Formation: Bois d´Arc Formation, Clarita, Oklahoma Age: Devonian. Size: 1.2, 1.2, 1.1, 0.7 cms Comments: This trilobite group comes from the Bois d´Arc Formation, not as famous as the Haragan Formation, but also can find very nice ones.The size of the trilobites, is normal for this specie. It is rare to find a plate with [...]
Formation: Rosella Formation, Dease River, Bristish Columbia Age:Cambrian. Size: 4cms, 2.5cms y 2.5 cms. Commentss: This beautiful plaque has four specimens of Elliptocephala in positive three complete and one partial, the largest is 4 cms long and 2.5 cms each of the others, the partial is 2 cms, also there is a negative of about [...]
Formation: Edwardsville Formation, Crawfordsville, Indiana. Age: Carboniferous. Size:3.2 cms. Comments: One of the last species of trilobites that populated the Earth, this formation, is also very famous for the crinoids encountered therein.Hesslerides bufo is a specie that is very difficult to find complete, often only found parts of the trilobite.
Formation: Marjum Formation, Utah Age: Cambrian. Size: 6 cms. Comments: Beautiful trilobite from the Marjum Formation ,the trilobite Marjumia typa takes the name from the formation, famous for the big number of Olenoides and other species that you can found in it. The cleanning proces has very good quality, and you can see the fossil in [...]
Formation: Sinsk Formation, Lena River, Yakutia, Siberia Age: Cambrian. Size: 4 cms. Comments: The specie Bergeroniellus asiaticus is a member of the Sinsk formation, some of the trilobites of Siberia can mesure more than 10 cms. A negative of the same species can be appreciated in the matrix.
Formation: Valongo de la "Pedreira do Valério", Canelas. Age: Ordovician. Size: 48 cms. Comments: It is one of the species of trilobites who has the phenomenon of the Gigantism of Valongo area, the glabella has a very large size. In this Ogyginus forteyi you can see piritization for all the fossil, a very espectacular piece [...]
Formation: Chengjiang biota, Yunnan Province. Age: Cambrian. Size: 1 cms Comments: The Chengjiang fauna is one of the most extensive in arthropods fossils, they have left many species with great quality of fossilization, even some of very soft body like worms, and due to the material, they have been able to keep in great detail. [...]
Formation: Sarka Formation, Svatostepansky Rypnik. Age: Cambrian. Size: 8 cms. Comments: Good example of Ectilaenus katzeri, is not as common and smaller as the Ectillaenus giganteus.This fossil with 8 cms is a big one for the specie.The trilobite is complete as you can see in the pictures.
Formation: Kulm, Aprath, Wuppertal. Age: Carboniferous Size: 2.5 cms. Comments: The trilobites of the family Phillipsiidae were one of the last who populated the Earth, are from the Carboniferous period, in particular the species Archegonus polleni is one of the more rare in the Archegonus genus.
Formation: Marjum formation, Utah Age: Cambrian Size:11cms Comments: Walcott give the correct name to this specie, is really "superbus", the cleaning work, with the "flying spines" is incredible, they clean, even under every spine, as you can see in the pictures. The fossil has a very good size for the specie.Olenoides are some of the [...]
Formation: Emigrant Pass, Carrara Formation California Age: Cambrian Size: 6 cms Comments: In this Bristolia fragilis you can see the long spine in the pygidium(3.4 cms), that measures a little more than the body(2.6 cms). In this formation of the Cambrian you can also find good examples of Olenellus, and Peachella iddingsi.
Formation: Volchov River, St Petersburg. Age: Ordovician. Size: 2.8 cms long x 2.4 cms width. Comments: This beautiful trilobite, has the distinction of being almost round, very rare thing in the trilobites, Stygina lata is a uncommon specie from the Ordovician of St. Petersburg.
Formation: Valongo "Pedreira do Valério" Canelas Age: Ordovician Size: 40 cms Comments: The Hungioides bohemicus arouquensis is a very rare trilobite , the form of the pigidium, is the most spectacular part of the trilobite, with the four pleural spines. It has a very big size as some species of the famous formation, in this area [...]
Formation: Dobrotiva Formation. Age: Ordovician. Size: 1.2 cms Comments: This little Ptychopariid it´s complete example , it´s not a common trilobite, is normal to find it disarticulate, and you just can find peaces of the animal.The size of this Cyclopyge bohemica is the normal one for the specie.
Formation: Maçao Age: Ordovician Size: 2 cms. Comentarios: Rare trilobite from the Maçao Formation, as you can see it has a big preglabellar ring with little holes as it´s normal in the Harpetidae trilobites, what is not so common is to see it so clear as in this one.This Eoharpes maçaoensis has the positive and the negative.For [...]
Formation: Valongo Age: Ordovician Size: width 5.5 cms, long 5 cms Comments: Selenopeltis gallica is an spectacular odontopleurid from the Ordovician of Portugal, the fossil has many spines in all the body.There are some theories saying that probably make it´s life on the floor, and use the spines for don´t getting too deep in the [...]
Formation: Pioche Shale, Nevada Age: Cambrian Size: 5.5cms Comments: This beautiful Bristolia bristolensis is complete with all the spines, as all the Bristolias, it´s very appreciated specie for the collectors and rare to found with the five spines.A very atractive Redlichiid.
Formation: St Petersburg region Age: Ordovician Size: 2 cms Comentarios: Very rare trilobite, the specie Pseudosphaerexochus pahnschi, despite it´s small size, it´s a very spectacular trilobite. The cleanning work is excellent, and very difficult to do because of the size and the big number of spines in flying possition.
Formation: Wolchow river, St Petersburg Age: Ordovícico Size: 6 cms Comments: Fantastic Lichid,the most notable feature of this trilobite is the "shark-like" cephalon, the Metopolichas erici is rare to find, as the other members of the Metopolichas species from the Ordovician of St. Petersburg region.The fossil has an excellent conservation, and the cleaning process has a [...]
Formation: Spence Shale, Miners Hollow,, Utah Age: Cambrian Size: 3 cms Comments: The Zacanthoides are very spectacular trilobites, in this Zacanthoides liddelli, as you can see in pictures is an spinose specimen, specially in the glabella area, it has a very high fosilitzation quality, as many of the trilobites from this formation.
Formation: Fillmore formation Utah USA Age: Ordovician Size: 4.8 cms Comments: The specie Presbynileus ibexensis is a rare Illaenid, it has a very good state of conservation, in many occasions is normal to find the trilobite enrolled. It has a very good size.
Formation: Rust formation,Trenton group NY Age: Ordovician Size: 2.7 cms Comments: Beautiful Achatella achates, this trilobite is from the classic Walcott-Rust formation.The complete examples are rare to find, in this trilobite is more often to find just the cephalon.In this fossil you can apreciate the long genal spines, and the eyes over the cephalon.
Formation: Wheeler Shale formation, Utah Age: Cambrian Size: 13 cms Comments: Big size and good quality trilobite, Olenoides abbotti is a rare specie in the Olenoides family, you can see the long spines that it has along the body, also, the cleanning process was excellent.
Formation: Echo Shale formation, California Age: Cambrian Size: 2.6cm - 3cm Comments: Excelent example of this rare specie, Peachella iddingsi is easy to distinguish by two protuberances that is next to the cephalon, the trilobite is complete, and has an excellent conservation.The size of the fossil, is the normal for the specie.