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Phacops rana = Eldredgeops rana  Moscow Formation, Erie County, New York

Phacops rana = Eldredgeops rana Moscow Formation, Erie County, New York

Flexicalymene meeki. 31 mm. Trilobita, Phacopida, Calymenidae. Ordovicien. Mount Orab, Ohio, USA. (550×487)

Flexicalymene meeki. 31 mm. Trilobita, Phacopida, Calymenidae. Ordovicien. Mount Orab, Ohio, USA. (550×487)

BURMEISTERIA armatus

BURMEISTERIA armatus

Trilobite

Trilobite

$化石ショップ「ふぉっしる」店長の日常-三葉虫Zlichovaspis

$化石ショップ「ふぉっしる」店長の日常-三葉虫Zlichovaspis

Name: Amecephalus idahoense (Resser, 1939)  Order Ptychopariida, Superfamily Ptychoparioidea, Family Alokistocaridae  Locality: left: Hansen Canyon, Wellsville Mountains, Utah; middle: Liberty, Idaho; right: Miner's Hollow, Wellsville Mts., Utah   Stratigraphy: Spence Shale, Langston Formation, Middle Cambrian

Name: Amecephalus idahoense (Resser, 1939) Order Ptychopariida, Superfamily Ptychoparioidea, Family Alokistocaridae Locality: left: Hansen Canyon, Wellsville Mountains, Utah; middle: Liberty, Idaho; right: Miner's Hollow, Wellsville Mts., Utah Stratigraphy: Spence Shale, Langston Formation, Middle Cambrian

Google Image Result for http://www.paleoart.com/static/trilobite_classification/russian_ordovician_trilobite-Boedaspis_ensifer-acd-8-6.jpg

Google Image Result for http://www.paleoart.com/static/trilobite_classification/russian_ordovician_trilobite-Boedaspis_ensifer-acd-8-6.jpg

Norwoodia bellaspina  Weeks Formation, House Range, Millard County, Utah.  Weeks trilobites are known for their excellent 3D preservation and color. One of the hallmarks of the species are the two dominant spines present. One spine is an interesting extension of the glabella. The other is a long axial spine, which is longer than the length of the specimen’s body.

Norwoodia bellaspina Weeks Formation, House Range, Millard County, Utah. Weeks trilobites are known for their excellent 3D preservation and color. One of the hallmarks of the species are the two dominant spines present. One spine is an interesting extension of the glabella. The other is a long axial spine, which is longer than the length of the specimen’s body.

Akantharges mbareki

Akantharges mbareki

Negative (shadows make it look positive) Witryides rosmerta  Order Proetida, Family Proetidae, Subfamily Ditmopyginae Carboniferous, Tounasian Stage (~350 million years ago) Size (25.4 mm = 1 inch): Trilobite is 25 mm long by 15 mm wide on a 120 mm by 50 mm by 55 mm high (part) and 100 mm by 45 mm by 50 mm high (counterpart) matrix  Antoing, Belgium  Description: This is an example of the rare Caboniferous proetid trilobite Witryides rosmerta.

Negative (shadows make it look positive) Witryides rosmerta Order Proetida, Family Proetidae, Subfamily Ditmopyginae Carboniferous, Tounasian Stage (~350 million years ago) Size (25.4 mm = 1 inch): Trilobite is 25 mm long by 15 mm wide on a 120 mm by 50 mm by 55 mm high (part) and 100 mm by 45 mm by 50 mm high (counterpart) matrix Antoing, Belgium Description: This is an example of the rare Caboniferous proetid trilobite Witryides rosmerta.

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