Lingula fossil facts Lingula is known to have existed since the early Ordovician period. Lingula uses its pedicle to move up and down in the vertical burrow in Oct 1, 2022 · Lingula parva is only known from the Gulf of Guinea in western Africa, isolated from all other living Lingula that reside in the Indo-West Pacific. & M. Unlike most brachiopods, it lives successfully in brackish water environments such as tidal mud flats. Proof that Lingula (Brachiopoda) is not a living-fossil, and emended diagnoses of the Family Lingulidae. C. Carnets de Géologie/Notebooks on Geology, Letter 2003/01, (CG2003_L01_CCE) and Emig C. and were referred to Lingula on the basis of similarity in the form of the shell. The first descriptions of Lingula were made from then extant specimens by three famous French scientists: BRUGUIÈRE, CUVIER, and LAMARCK. Oct 7, 2024 · Lingula is a genus of brachiopods within the class Lingulata. This living fossil status is now considered unjustified. Like its relatives, it has two unadorned organophosphatic valves and a long fleshy stalk. Lingula has long been considered an example of a living fossil; in fact, the perceived longevity of this genus led Darwin to coin this concept. anatina genome and shows that despite Lingula's reputation as a "living fossil" its genome is actively May 20, 2016 · The geographic population patterns of Lingula anatina across the Indo-West Pacific region are analyzed based on mitochondrial COI and nuclear EF-1α gene sequences. Few of these pertinent characters are available in most fossil specimens of Lingula, and it is probable that many fossil species are too finely separated. The various species look very similar, and the genus is a good example of a living fossil. Lingula is a genus of brachiopods in the class Lingulata. The genus Lingula was created in 1791 (not 1797) by BRUGUIÈRE and in 1801 LAMARCK named the first species L. 1666/12-127. Sep 18, 2015 · The evolutionary origins of lingulid brachiopods and their calcium phosphate shells have been obscure. Emig (1982) recorded L. They prefer quiet water and protected surroundings. A. First known from Cambrian rocks (about 542 million to 488 million years old), they probably originated during Precambrian time. In the 1840's other linguliform brachiopods from the Palaeozoic were described. anatina from Senegal in West Africa, however, considering that its type locality is the Moluccas, this population may represent a different species. K. Lingula is a good example of a living fossil. Lingulids are substantially more species-rich than previously recognized. Lingula lives from the tidal zone to 23 fathoms (about 42 metres [138 feet]). anatina, which was then studied by CUVIER (1802). Authors: Shujuan Yang. Jun 1, 2017 · In the databank World Registered Marine Species (WoRMS), there are seven different registered species that belong to the genus Lingula, whereas BrachNet has eight morphologically identified Lingula species. Sep 1, 2013 · Deep Genetic Divergence Within a “Living Fossil” Brachiopod Lingula anatina. A global molecular phylogeny of the extant Lingulidae was reconstructed. Here we decode the 425-Mb genome of Lingula anatina to gain insights into brachiopod evolution. …fossils”—for instance, the lamp shell Lingula, a genus of brachiopod (a phylum of shelled invertebrates) that appears to have remained essentially unchanged since the Ordovician Period, some 450 million years ago; or the tuatara (Sphenodon punctatus), a reptile that has shown little morphological evolution for nearly 200 million years In 1812 the first fossil lingulids were discovered in the Mesozoic and Palaeozoic strata of the U. Lingula lives in mud or sand and is attached at the bottom of its burrow. The genus Lingula has survived virtually unchanged from the Cambrian to the present day. Compared with the remarkable morphological stasis, genetic evidence of extant Lingula species displays deep genetic divergence. Bitner, 2005 . The similarity of the shell form of the extant Lingula and these fossils led DARWIN in 1859 to create the description "living fossil" in his book "On the Origin of Species". Lingula lives in burrows in barren sandy coastal seafloor and f There are about 100 to 350 Brachiopod species living; the fossil species number 12,000. Phylogenetic relationships within Lingula and Glottidia were resolved well. This difference can be remedied by a careful examination of the recorded specimens of congeneric species of the genus Lingula. Oct 1, 2022 · Lingulids are living fossils well-known for stasis in their evolutionary history. Most modern branchiopods anchor by the pedicle to pebbles, to the undersides of stones, or to other hard objects. In 1812 the first fossil lingulids were discovered in the Mesozoic and Palaeozoic strata of the U Fun facts. [1] . Sep 18, 2015 · A new article presents the results of their analysis of over 34,000 genes comprising the L. Lingula or forms very close in appearance have existed possibly since the Cambrian. lingulid, any member of a group of brachiopods, or lamp shells, that includes very ancient extinct forms as well as surviving representatives. September 2013; Journal of Paleontology 87(5):902-908; DOI:10. In the present study L. . Like all brachiopods, it is a filter feeder. anatina rather than well-based morphological differences. waikatoensis is retained but this expresses the separation in time and space from living Indo-Pacific L. the U. Lingula, one of the oldest genera of brachiopods, has survived from the earliest Ordovician to the present day. Brachiopods are superficially similar to bivalves, both having two shells. hhw osf kudz emya qsuggd vhpope gwpngm jlbqjg tdaawy eoxzr dpg cmuve rlfce ujihym olyo