Definitions for lancelet
ˈlæns lɪt, ˈlɑns-lancelet

Princeton's WordNetRate this definition:0.0 / 0 votes

1. lancelet, amphioxusnoun

   small translucent lancet-shaped burrowing marine animal; primitive forerunner of the vertebrates

WiktionaryRate this definition:0.0 / 0 votes

1. lanceletnoun

   any of a group of primitive marine animals, of subphylum Cephalochordata, having a notochord instead of a backbone

WikipediaRate this definition:0.0 / 0 votes

1. Lancelet

   The lancelets ( LA(H)N-slits), also known as amphioxi (singular: amphioxus AM-fee-OK-səs), consist of some 30 to 35 species of "fish-like" benthic filter feeding chordates in the order Amphioxiformes. They are the modern representatives of the subphylum Cephalochordata. Lancelets closely resemble 530-million-year-old Pikaia, fossils of which are known from the Burgess Shale. Zoologists are interested in them because they provide evolutionary insight into the origins of vertebrates. Lancelets contain many organs and organ systems that are closely related to those of modern fish, but in more primitive form. Therefore, they provide a number of examples of possible evolutionary exaptation. For example, the gill-slits of lancelets are used for feeding only, and not for respiration. The circulatory system carries food throughout their body, but does not have red blood cells or hemoglobin for transporting oxygen. Lancelet genomes hold clues about the early evolution of vertebrates: by comparing genes from lancelets with the same genes in vertebrates, changes in gene expression, function and number as vertebrates evolved can be discovered. The genome of a few species in the genus Branchiostoma have been sequenced: B. floridae, B. belcheri, and B. lanceolatum.In Asia, lancelets are harvested commercially as food for humans and domesticated animals. In Japan, amphioxus (B. belcheri) has been listed in the registry of “Endangered Animals of Japanese Marine and Fresh Water Organisms”.

ChatGPTRate this definition:0.0 / 0 votes

1. lancelet

   A lancelet is a small, translucent, fish-like marine animal that is one of the invertebrates closest in evolutionary terms to the vertebrates. It belongs to the subphylum Cephalochordata and is characterized by its pointed, lance-shaped body and a notochord, which is a flexible rod-like structure that functions in place of a true spine. It is often used in scientific research and study due to its importance in understanding the evolutionary development of vertebrates.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Lanceletnoun

   a small fishlike animal (Amphioxus lanceolatus), remarkable for the rudimentary condition of its organs. It is the type of the class Leptocardia. See Amphioxus, Leptocardia

2. Etymology: [Lance + -let.]

WikidataRate this definition:0.0 / 0 votes

1. Lancelet

   The lancelets, also known as amphioxus, comprise some twenty-two species of fish-like marine chordates with a global distribution in shallow temperate and tropical seas, usually found half-buried in sand. They are the modern representatives of the subphylum Cephalochordata, formerly thought to be the sister group of the craniates. In Asia, they are harvested commercially as food for humans and domesticated animals. They are an important object of study in zoology as they provide indications about the origins of the vertebrates. Lancelets serve as an intriguing comparison point for tracing how vertebrates have evolved and adapted. Although lancelets split from vertebrates more than 520 million years ago, their genomes hold clues about evolution, particularly how vertebrates have employed old genes for new functions. They are regarded as similar to the archetypal vertebrate form. The Amphioxiformes are often called "amphioxus". Amphioxus is an obsolete synonym of the genus Branchiostoma. It is used as a common name alongside with "lancelet", especially in the Anglo-Saxon language. The genome of the Florida lancelet has been sequenced.

Matched Categories

1. • Cephalochordate

How to pronounce lancelet?

1. Alex

   US English

   David

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   Mark

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   Daniel

   British

   Libby

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   Mia

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   Karen

   Australian

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   Australian

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   Neerja

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How to say lancelet in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of lancelet in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of lancelet in Pythagorean Numerology is: 9

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=lancelet
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Lancelet
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Lancelet
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/lancelet
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=lancelet