Protasterid sp.
Vendor: Gold Bugs
SKU Number: SQ4462451
A beautiful example of a pyritized brittle star echinoderm, Protasterid sp., from the Late Ordovician, Frankfort Shale, Beecher’s Trilobite Bed, Lewis County, New York.
Protasterid sp.: An incredible pyritized Protasterid brittlestar (ophiuroid) from the same layers that produce the famous pyritized Triarthrus trilobites with legs and antennae. This specimen is covered with spines and is outstretched in all directions.
Oral arm shields, spines and even tube feet can be clearly identified on this specimen, with its exceptional preservation at the same levels as the trilobites and other fauna found within the unit. The brittle stars are rarely found here and may be the only opportunity for collectors to get their hands on one.
Full dimensions are listed below.
Vendor: Gold Bugs
SKU Number: SQ4462451
A beautiful example of a pyritized brittle star echinoderm, Protasterid sp., from the Late Ordovician, Frankfort Shale, Beecher’s Trilobite Bed, Lewis County, New York.
Protasterid sp.: An incredible pyritized Protasterid brittlestar (ophiuroid) from the same layers that produce the famous pyritized Triarthrus trilobites with legs and antennae. This specimen is covered with spines and is outstretched in all directions.
Oral arm shields, spines and even tube feet can be clearly identified on this specimen, with its exceptional preservation at the same levels as the trilobites and other fauna found within the unit. The brittle stars are rarely found here and may be the only opportunity for collectors to get their hands on one.
Full dimensions are listed below.
Vendor: Gold Bugs
SKU Number: SQ4462451
A beautiful example of a pyritized brittle star echinoderm, Protasterid sp., from the Late Ordovician, Frankfort Shale, Beecher’s Trilobite Bed, Lewis County, New York.
Protasterid sp.: An incredible pyritized Protasterid brittlestar (ophiuroid) from the same layers that produce the famous pyritized Triarthrus trilobites with legs and antennae. This specimen is covered with spines and is outstretched in all directions.
Oral arm shields, spines and even tube feet can be clearly identified on this specimen, with its exceptional preservation at the same levels as the trilobites and other fauna found within the unit. The brittle stars are rarely found here and may be the only opportunity for collectors to get their hands on one.
Full dimensions are listed below.
Additional Information
Brittle Stars belong to the Phylum Echinodermata and includes crinoids, sea urchins and sea cucumbers. The first echinoderms appear in the Lower Cambrian period.
It has been suggested that he ancestor of all echinoderms was a simple bi-laterally symmetrical animal with a mouth, gut and anus. This ancestral organism adopted an attached mode of life with suspension feeding, and developed radial symmetry. Even so, the larvae of all echinoderms are bilaterally symmetrical, and all develop radial symmetry at metamorphosis. Like their ancestor, the starfish and crinoids still attach themselves to the seabed while changing to their adult form.
