| Crepicephalina Fossil range: Cambrian[1] |
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Crepicephalina is an extinct genus from a well known class of fossil marine arthropods, the trilobites. The Cambrian is a geologic period and system that began about Ma (million years ago at the end of the Proterozoic eon and ended about Ma with The conservation status of a Species is an indicator of the likelihood of that species remaining extant either in the present day or the near future Arthropods are Animals belonging to the Phylum Arthropoda (from Greek ἄρθρον arthron, " Joint " Trilobites ("three-lobes" are extinct Arthropods that form the class Trilobita. In Biology and Ecology, extinction is the cessation of existence of a Species or group of taxa. A genus (plural genera from Γένος Latin genus "descent family type gender" is a low-level Taxonomic FOSSIL is a standard protocol for allowing serial communication for Telecommunications programs under the DOS Operating system. Arthropods are Animals belonging to the Phylum Arthropoda (from Greek ἄρθρον arthron, " Joint " Trilobites ("three-lobes" are extinct Arthropods that form the class Trilobita. It lived during the Cambrian Period[2], which lasted from approximately 542 to 488 million years ago. The Cambrian is a geologic period and system that began about Ma (million years ago at the end of the Proterozoic eon and ended about Ma with
References
- ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Trilobita entry)". Bulletins of American Paleontology 364: p. 560.
- ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Trilobita entry)". Bulletins of American Paleontology 364: p. 560.