Schultze, Hans-Peter Museum of Natural History, University of Kansas, Lawrence, Kansas.
Last reviewed:October 2015
Show previous versions
- Fossil record
- Phylogenetic relationships
- Links to Primary Literature
- Additional Readings
An order of lobe-finned fishes (subclass Actinistia, class Sarcopterygii) collectively termed the coelacanths and predominantly known from fossils. The order Coelacanthiformes comprises five families of coelacanths; four of these families consist of completely extinct members. The family Latimeriidae, which contains mostly fossil forms, has two known extant species, Latimeria chalumnae (West Indian Ocean coelacanth; Fig. 1) and Latimeria menadoensis (Indonesian coelacanth). Both of these species are endangered. Many taxonomists consider the coelacanths to be living fossils, that is, living species that very closely resemble fossil relatives in most anatomical details. See also: Endangered species; Fossil; Living fossils; Osteichthyes; Sarcopterygii
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 9000 highly qualified scientists and 43 Nobel Prize winners.
MORE THAN 8700 articles covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information