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Fieldia (worm)
''Fieldia'' (named after American businessman and financier Cyrus W. Field) is a genus of worms known from the Cambrian Burgess Shale, and assigned to the priapulids. It was originally interpreted as an arthropod; its trunk bears a dense covering of spines, and its proboscis is small. It fed on sea-floor mud, evidenced by the frequent presence of sediments preserved in its gut. It reached 5 cm in length. Along with the other Cambrian priapulids ''Ottoia'', '' Selkirkia'', ''Louisella'', '' Ancalagon'', '' Scolecofurca'', and '' Lecythioscopa'', the organism was originally classified into a clade termed the Archaeopriapulida, a stem group to the Priapulids proper. However, the morphological similarity of these organisms to their modern cousins is remarkable, especially for the Burgess Shale, and their similarity to the modern genus '' Maccabeus'' suggests that they are in the Seticoronaria stem group, and thus are true crown-group priapulids. A phylogenetic analysis does not p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fieldia Lanceolata
''Fieldia'' may refer to a number of different genera in various scientific fields: Botany * ''Fieldia'' (plant) A. Cunningham, 1825, a genus of plants in the family Gesneriaceae. Fieldia is also used as a common name for '' Fieldia australis'', a species in this genus *''Fieldia'' Gaudichaud, 1829, a synonym of the orchid genus ''Vandopsis ''Vandopsis'', abbreviated as Vdps in horticultural trade, is a genus of orchids in the family Orchidaceae. It contains ca. 5 species found in Southeast Asia, Northern and southern China, Southern China, the Philippines, and New Guinea. Recently ...'' Zoology *''Fieldia'' K. Johnson, 1991, a synonym of '' Calycopis'' a genus of butterfly in the family Lycaenidae *''Fieldia'' Niculescu, 1979, a synonym of ''Vanessa'' (butterfly) Paleontology * ''Fieldia'' (worm) Walcott, 1912, a genus of worms in the family Fieldiidae {{Genus disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lecythioscopa
''Lecythioscopa'' is a genus of probable archaeopriapulid known from two specimens from the Walcott Quarry from the Middle Cambrian Burgess Shale. Morphology The specimens of ''Lectythioscopa'' are both missing their posterior portions, leaving a head, comparable to the proboscis of other priapulids, and long trunk, which is curved in both specimens. The animal was probably a burrower due to its external radial symmetry. History The species was originally placed as ''Canadia simplex'' by Charles Walcott in a 1931 publication based on a single specimen. Simon Conway Morris Simon Conway Morris (born 1951) is an English palaeontologist, evolutionary biologist, and astrobiologist known for his study of the fossils of the Burgess Shale and the Cambrian explosion. The results of these discoveries were celebrated in ... later identified what was previously considered a specimen of ''Canadia dubia'' as sharing similar features, placing them both under the name of ''Lecythio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burgess Shale Animals
__NOTOC__ Burgess may refer to: People and fictional characters * Burgess (surname), a list of people and fictional characters * Burgess (given name), a list of people Places * Burgess, Michigan, an unincorporated community * Burgess, Missouri, United States *Burgess, South Carolina, United States *Burgess, Virginia, United States *Burgess Township, Bond County, Illinois, United States *Burgess Park, London, England * Burgess Field Oxford, England *Burgess Hill, Sussex, England * Mount Burgess, Canadian Rockies *Burgess Branch, a tributary of Missisquoi River, Vermont, United States Other uses *Burgess (title), a political official or representative *Burgess Company, an American airplane manufacturer *Burgess GAA, an athletic club in Ireland See also *Burgess House (other), several buildings named *Burgess model, or Concentric zone model, a theoretical model in urban geography *Burgess reagent, used in organic chemistry *Burgess Shale, a fossil-bearing formation near Mou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burgess Shale Fossils
The fossils of the Burgess Shale, like the Burgess Shale itself, formed around 505 million years ago in the Mid Cambrian period. They were discovered in Canada in 1886, and Charles Doolittle Walcott collected over 65,000 specimens in a series of field trips up to the alpine site from 1909 to 1924. After a period of neglect from the 1930s to the early 1960s, new excavations and re-examinations of Walcott's collection continue to reveal new species, and statistical analysis suggests that additional discoveries will continue for the foreseeable future. Stephen Jay Gould's book '' Wonderful Life'' describes the history of discovery up to the early 1980s, although his analysis of the implications for evolution has been contested. The fossil beds are in a series of shale layers, averaging and totalling about in thickness. These layers were deposited against the face of a high undersea limestone cliff. All these features were later raised up above current sea level during the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyllopod Bed
The Phyllopod bed, designated by USNM locality number 35k, is the most famous fossil-bearing member of the Burgess Shale fossil ''Lagerstätte''. It was quarried by Charles Walcott from 1911–1917 (and later named Walcott Quarry), and was the source of 95% of the fossils he collected during this time; tens of thousands of soft-bodied fossils representing over 150 genera have been recovered from the Phyllopod bed alone. Stratigraphy and location The phyllopod bed is a 2.31 m thick layer of the 7 m thick Greater Phyllopod Bed, found in the Walcott Quarry on Fossil Ridge, between Wapta Mountain and Mount Field, at an elevation of around , around north of the railway town of Field, British Columbia, in the Canadian Rocky Mountains. It is adjacent to Mount Burgess, where Walcott first discovered the Burgess Shale formation. Walcott divided the bed into twelve units based on the rock type and fossil content. Certain fossil beds provide reference levels and can b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seticoronaria
''Maccabeus'' is the sole genus of seticoronarian priapulid Priapulida (priapulid worms, from Gr. πριάπος, ''priāpos'' 'Priapus' + Lat. ''-ul-'', diminutive), sometimes referred to as penis worms, is a phylum of unsegmented marine worms. The name of the phylum relates to the Greek god of fertility ... worms. References Priapulida Ecdysozoa families {{Protostome-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maccabeus (genus)
''Maccabeus'' is the sole genus of seticoronarian priapulid Priapulida (priapulid worms, from Gr. πριάπος, ''priāpos'' 'Priapus' + Lat. ''-ul-'', diminutive), sometimes referred to as penis worms, is a phylum of unsegmented marine worms. The name of the phylum relates to the Greek god of fertility ... worms. References Priapulida Ecdysozoa families {{Protostome-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archaeopriapulida
Archaeopriapulida is a group of priapulid-like worms known from Cambrian lagerstätte. The group is closely related to, and very similar to, the modern Priapulids. It is unclear whether it is mono- or polyphyletic. Despite a remarkable morphological similarity to their modern cousins, they fall outside of the priapulid crown group, which is not unambiguously represented in the fossil record until the Carboniferous. They are probably closely related or paraphyletic to the palaeoscolecids; the relationship between these basal worms is somewhat unresolved. Species * Genus '' Acosmia maotiania'' Chen & Zhoi 1997 (Chengjiang deposits) ** '' Acosmia maotiania'' Chen & Zhoi 1997 * Genus '' Archotuba'' Hou et al. 1999 (possibly a Cnidarian) (Chengjiang deposits) ** '' Archotuba conoidalis'' Hou et al. 1999 * Genus '' Baltiscalida'' Slater et al. 2017 ** '' Baltiscalida njorda'' Slater et al. 2017 * Genus '' Eopriapulites'' Liu & al 2014 ** '' Eopriapulites sphinx'' Liu & al 2014 * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scolecofurca
''Scolecofurca'' is a genus of stem-group priapulid worm dating from the Middle Cambrian period approximately 505 million years ago. It is known from a single fossil specimen from the Raymond Quarry in the Burgess Shale The Burgess Shale is a fossil-bearing deposit exposed in the Canadian Rockies of British Columbia, Canada. It is famous for the exceptional preservation of the soft parts of its fossils. At old (middle Cambrian), it is one of the earliest fo ... in the Canadian Rockies. The only known species in the species ''Scolecofurca rara'' was first described by Conway Morris in 1977 as a possible primitive priapulid, but later shown to belong to the priapulid stem group. Its name is derived from the Greek ''skolex'' (worm) and the Latin ''furca'' (fork) and ''rara'' (infrequent). Morphology ''Scolecofuras single fossil specimen is 6.5 centimeters in length. The fossil displays a proboscis of constant width, with two 3 millimeter tentacles at the anterior. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyrus W
Cyrus ( Persian: کوروش) is a male given name. It is the given name of a number of Persian kings. Most notably it refers to Cyrus the Great ( BC). Cyrus is also the name of Cyrus I of Anshan ( BC), King of Persia and the grandfather of Cyrus the Great; and Cyrus the Younger (died 401 BC), brother to the Persian King Artaxerxes II of Persia. Etymology Cyrus, as a word in English, is the Latinized form of the Greek Κῦρος, ''Kȳros'', from Old Persian ''Kūruš''. According to the inscriptions the name is reflected in Elamite ''Kuraš'', Babylonian ''Ku(r)-raš/-ra-áš'' and Imperial Aramaic ''kwrš''. The modern Persian form of the name is '' Kūroš''. The etymology of Cyrus has been and continues to be a topic of discussion amongst historians, linguists, and scholars of Iranology. The Old Persian name "kuruš" has been interpreted in various forms such as "the Sun", "like Sun", "young", "hero," and "humiliator of the enemy in verbal contest" and the Elamite "k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancalagon (genus)
''Ancalagon minor'' is an extinct priapulid worm known from the Cambrian Burgess Shale. Because it superficially resembles the modern-day internal parasites known as the acanthocephalids or "spiny-headed worms," ''A. minor'' was once thought to be, or once thought to resemble the hypothetical free-living ancestor of acanthocephalids. Two specimens of ''Ancalagon (worm)'' are known from the Greater Phyllopod bed, where they comprise < 0.01% of the community. Along with the other Cambrian worms such as '''', '' Selkirkia, '', '' Fieldia'', '' |
Louisella
''Louisella'' is a genus of worm known from the Middle Cambrian Burgess Shale. It was originally described by Charles Walcott in 1911 as a holothurian echinoderm, and represents a senior synonym of ''Miskoia'', which was originally described as an annelid. 48 specimens of ''Louisella'' are known from the Greater Phyllopod bed The Phyllopod bed, designated by USNM locality number 35k, is the most famous fossil-bearing member of the Burgess Shale fossil ''Lagerstätte''. It was quarried by Charles Walcott from 1911–1917 (and later named Walcott Quarry), and was t ..., where they comprise < 0.1% of the community. It has been stated to have palaeoscolecid-like sclerites, though this is not in fact the case.Smith, M.R. 2015: A palaeoscolecid worm from the Burgess Shale. Palaeontology 58, 973–979. It's also been interpreted as an annelid and a sipunculan, (neither on particularly compelling grounds) and a pripaulid,Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
