Hallucigenia sp. - Elrathia kingii
Vendor: Gold Bugs
SKU Number: SQ7686651
An amazing plate featuring the bizarre and legendary Hallucigenia and a cluster of beautiful red Elrathia kingii trilobites.
This is a true collectors piece, and a chance to own a Hallucigenia - a collectors holy grail. The plate comes from the Red Beds of the Wheeler Shale, Utah.
Found on a natural weathering vein, this pool of fossilized animals is nothing short of spectacular. The Hallucigenia features a robust body with textbook curled terminus and faint spines and appendages. The extremely low preservation potential for these organisms makes this an extremely desirable item.
Hallucigenia is a genus of articulated animals from the Cambrian Burgess Shale deposits of British Columbia, and more recently the Wheeler Shale Formation of Utah, that resemble worms.
Full dimensions are listed below (Dimensions provided are for the Hallucigenia and the largest Elrathia).
Vendor: Gold Bugs
SKU Number: SQ7686651
An amazing plate featuring the bizarre and legendary Hallucigenia and a cluster of beautiful red Elrathia kingii trilobites.
This is a true collectors piece, and a chance to own a Hallucigenia - a collectors holy grail. The plate comes from the Red Beds of the Wheeler Shale, Utah.
Found on a natural weathering vein, this pool of fossilized animals is nothing short of spectacular. The Hallucigenia features a robust body with textbook curled terminus and faint spines and appendages. The extremely low preservation potential for these organisms makes this an extremely desirable item.
Hallucigenia is a genus of articulated animals from the Cambrian Burgess Shale deposits of British Columbia, and more recently the Wheeler Shale Formation of Utah, that resemble worms.
Full dimensions are listed below (Dimensions provided are for the Hallucigenia and the largest Elrathia).
Vendor: Gold Bugs
SKU Number: SQ7686651
An amazing plate featuring the bizarre and legendary Hallucigenia and a cluster of beautiful red Elrathia kingii trilobites.
This is a true collectors piece, and a chance to own a Hallucigenia - a collectors holy grail. The plate comes from the Red Beds of the Wheeler Shale, Utah.
Found on a natural weathering vein, this pool of fossilized animals is nothing short of spectacular. The Hallucigenia features a robust body with textbook curled terminus and faint spines and appendages. The extremely low preservation potential for these organisms makes this an extremely desirable item.
Hallucigenia is a genus of articulated animals from the Cambrian Burgess Shale deposits of British Columbia, and more recently the Wheeler Shale Formation of Utah, that resemble worms.
Full dimensions are listed below (Dimensions provided are for the Hallucigenia and the largest Elrathia).
Additional Information
Hallucigenia is a long tubular animal with up to ten pairs of slender legs that belongs to the phylum lobopodia. Hallucigenia is a genus made famous by specimens from the Cambrian Burgess Shale deposits of British Columbia. It was first described by Charles Doolittle Walcott as a polychaete worm. In 1991, Lars Ramskold and Hou Xianguang, working on more complete specimens from China, re-described Hallucigenia as a lobopodian.
Lobopodians, which include the extinct marine legged worms, are members of Panarthropoda, a proposed animal clade containing the extant phyla Arthropoda, Tardigrada and Onychophora. Common characteristics of the Panarthropoda include a segmented body, paired ladder-like, ventral nervous system, and the presence of paired appendages correlated with body segments.
Recently specimens of Hallucigenia have also started to be found in the Cambrian, Wheeler Shale Formation of Utah.
References:
Elrathia kingii is one of the most common trilobites of the Middle Cambrian, wheeler Shale formation in Utah. Its more familiar form is a compressed dark gray mineralized carapace on a mid to dark gray shale. However, the Wheeler Shale has many facies including calcareous shale, shaley limestone, mudstone and thin, flaggy limestone that create amazingly colorful contrasts of reds, yellows, browns and greens.
The rock color combinations are caused by a variety of minerals, including iron and organic carbon. The color of sedimentary rocks reflect the depositional environments, including oxygen levels, organic matter, sedimentation rate, etc. Color is also influenced by transition metals such as iron, magnesium, copper, zinc, titanium and many others. E. kingii is a medium-sized trilobite with a smooth sub-ovate carapace that is tapered towards the rear. Thorax is usually 13 segments. Pygidium has four axial rings and a long terminal piece. Posterior margin of the pygidium has a long broad medial notch.
