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Two Ordovician Gastropods and a Trilobite (Onnia) Head - Morocco
This is a pair of interesting Ordovician age gastropod fossils and a trilobite head (Onnia), collected from a location near Hmar Laghdad, Morocco. These gastropods must be mechanically prepared from the hard limestone they are found in.
Gastropods, or snails, have been around since the Late Cambrian period. The class Gastropoda contains a vast total of named species, second only to the insects in overall number. There are 611 known families of gastropods, of which 202 families are extinct and appear only in the fossil record.
About Trilobites
Trilobites are an extinct class of marine arthropods that thrived for nearly 270 million years, from the early Cambrian to the end of the Permian period (around 521 to 252 million years ago). They are one of the most successful and diverse groups in the history of life, with over 25,000 described species spanning a wide range of sizes, shapes, and ecological niches. Known for their distinctive, segmented exoskeletons, trilobites provide invaluable insights into the evolutionary history of arthropods and the dynamics of ancient marine ecosystems.
Trilobites are an extinct class of marine arthropods that thrived for nearly 270 million years, from the early Cambrian to the end of the Permian period (around 521 to 252 million years ago). They are one of the most successful and diverse groups in the history of life, with over 25,000 described species spanning a wide range of sizes, shapes, and ecological niches. Known for their distinctive, segmented exoskeletons, trilobites provide invaluable insights into the evolutionary history of arthropods and the dynamics of ancient marine ecosystems.
SPECIES
Unidentified Gastropod & Onnia sp. (Trilobite)
AGE
LOCATION
Near Hmar Laghdad, Morocco
SIZE
.8" & .6" wide, 3.6 x 1.8" entire specimen
CATEGORY
ITEM
#164099
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