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Kerygmachelidae
Kerygmachelidae is a family of gilled lobopodians (stem-arthropods with flapping trunk appendages and radial mouths) from the Cambrian period. Currently three genera are included in the family: '' Kerygmachela'' from the lower Cambrian of Greenland, ''Utahnax'' from the middle Cambrian of Utah, and '' Mobulavermis'' from the lower-middle Cambrian of Nevada. These animals are characterized by well developed frontal appendages similar to other dinocaridids like the radiodonts Radiodonta is an extinct order of stem-group arthropods that was successful worldwide during the Cambrian period. They may be referred to as radiodonts, radiodontans, radiodontids, anomalocarids, or anomalocaridids, although the last two origi ..., except the ones present in these genera are horizontal to one another, and do not curve downward. These animals were most likely nektonic predators, using their large trunk flaps to swim in the water column, and using their frontal appendages to grab small- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobulavermis
''Mobulavermis'' () (meaning "Mobula worm") is an extinct genus of Cambrian Kerygmachelidae, kerygmachelid lobopodian from the Pioche Shale, the Combined Metals Member of the Pioche Formation in Nevada; USA. The type species is ''M. adustus'', known from the holotype and paratype. Etymology The generic name, ''Mobulavermis'' () comes from 'Mobula, ''Mobula''', the genus name of extant manta rays and Mobula, devil rays. This draws comparison to the elongate flexible caudal spines and broad swimming flaps of ''Mobula'' rays, which resemble the outline of the new taxon. This is combined with the Latin Language, Latin 'vermis', which translates to "worm". The specific name, ''adustus'' () is a Latin word which can mean "burnt", "singed", or "sun-burnt". This is in reference to the dramatic yellow, red, and black coloration of the two known specimens, and to the arid conditions of the type locality. Description ''Mobulavermis'' is known from two specimens which were described b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
