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Topic: Crocodylinae

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  Crocodylidae   (Site not responding. Last check: 2007-10-31)
Crocodylinae: in Asia from Iran to Indonesia and New Guinea, Australia, Africa, Southern Mexico to northern South America, Caribbean, southern Florida, Madagascar.
The three subfamilies of crocodiles are often considered as separate families, Alligatorinae, Crocodylinae, and Gavialinae.
Morphological data seem to place Tomistoma within the Crocodylinae (Frey et al.
www.embl-heidelberg.de /~uetz/families/Crocodylidae.html   (783 words)

 Term-Papers.us - Alliagator
The success of the Crocodile is evidenced by the relatively few changes that have occurred since crocodilians first appeared about 200 million years ago.
The Crocodile belongs to the family Crocodylinae, which consists of those organisms sharing common crocodilian traits.
This Family is further divided into three subfamilies: Alligatorinae (alligators), Gavialinae (gharial), and Crocodylinae (crocodiles).
www.term-papers.us /ts/ha/sff48.shtml   (2424 words)

 Marine Discovery Lesson   (Site not responding. Last check: 2007-10-31)
These voracious predators of land and water, have been able to adapt to their environment over millions of years due to superb design and superior intelligence.
There are 3 crocodilian subspecies: Alligatorinae, Crocodylinae and Gavialinae and all of these contain 23 species, crocodylinae containing 13.
Today crocodiles are found in the warm regions of Africa, Asia, Australia and North and South America.
marinediscovery.arizona.edu /lessons/tube_worms/Templates   (3141 words)

 IUCN/SSC Invasive Species Specialist Group (ISSG)/Features   (Site not responding. Last check: 2007-10-31)
Crocodilians of the most advanced kind, known as the Eusuchians, first appeared some 140 to 65 million years ago, and the crocodilians of today all belong to this suborder.
There are 22 species in the Crocodylidae Family which is divided into three subfamilies, namely: the Crocodylinae, the Alligatorinae, and the Gavialinae.
Crocodiles and alligators are found between the latitudes of Cancer (23.5º north) and Capricorn (23.5º south), in the rivers and lakes of South America, Africa, Asia and Australia.
www.issg.org /features/chromolaena.html   (2307 words)

 What are Dermal Pressure Receptors?
In these species Dermal Pressure Receptors are restricted to the head area, mainly found along the jawline, eyes, nose and upper palate.
Animals in the Crocodylinae and Gavialinae families, which include crocodiles, have DPRs distributed over their entire bodies.
Dermal Pressure Receptors were previously called Integumentary Sense Organs (ISOs) because of their location in the integumentary or outer layer of the skin.
www.wisegeek.com /what-are-dermal-pressure-receptors.htm   (425 words)

These animals has been treated from time to time as true crocodylids, but other times they have been placed outside the crown-group Crocodylidae [Tomistoma + Crocodylus] as defined by Brochu (1997).
However, Brochu has recently (2000) placed them inside Crocodylinae.
On the other hand, Molnar, Worthy and Willis, 2002, again placed them outside Crown-group Crocodylidae, a view that is followed here.
www.fmnh.helsinki.fi /users/haaramo/Metazoa/Deuterostoma/Chordata/Archosauria/Crocodylia/Crocodyloidea.htm   (351 words)

 Iwokrama Forest | Black Caiman
The Black Caiman is the largest member of this group in the world; adults can grow to 6 metres (16-20 ft.) long.
Caimans and alligators differ from members of the Subfamily Crocodylinae (crocodiles) due to certain anatomical differences.
This is one of four caimans found in Guyana.
www.iwokrama.org /forest/animals/blackcaiman.htm   (404 words)

 Gharial Scientific classification Scientific classification Kingdom...
If the three surviving groups of crocodilians are regarded as separate families, then the Gharial becomes the only member of the Gavialidae Gavialidae, which is related to the families Crocodylidae Crocodylidae (crocodiles) and Alligatoridae Alligatoridae (alligators and caymans).
Alternatively, the three groups are all classed together as the family Crocodylidae Crocodylidae, but belong to the subfamilies subfamilies Gavialinae Gavialinae, Crocodylinae Crocodylinae, and Alligatorinae Alligatorinae.
Finally, palaentologists palaentologists tend to speak of the broad lineage of gharial-like creatures over time using the term Gavialoidea Gavialoidea.
www.biodatabase.de /Gharial   (857 words)

 [No title]   (Site not responding. Last check: 2007-10-31)
Comparative observations on methacholine-stimulated secretion by lingual salt glands in populations of Crocodylus porosus living in salt and brackish water and C. johnstoni living in fresh and salt water confirm the usefulness of methacholine injection as a technique for inferring salt gland capability in crocodilians.
Observations on twelve species of the Family Crocodylidae from Asia, Africa, Australia and North America confirm the presence of lingual salt glands throughout all the Sub-family Crocodylinae yet examined, and their absence from the Sub-family Alligatorinae.
Coupled with biochemical evidence which suggests a comparatively recent Tertiary radiation of the Crocodylinae, the data support the argument that, contrary to currently accepted views, the Crocodylinae have a marine ancestry from which there has been a radiation into fresh water habitats throughout the tropics.
eprint.uq.edu.au /perl/oai2?verb=ListRecords&metadataPrefix=oai_dc&set=7375626A656374733D323730303030:323730373030:323730373035   (222 words)

 FAQ Alligators and Their Kin
Although this family has existed since the upper Triassic Period, over 200 million years ago, reptiles which can definitely be classed as modern alligators, caimans, gavials, and crocodiles only appear in the fossil record about 80 million years ago.
Today, Family Crocodylidae contains three subfamilies: Alligatorinae (alligators and caimans), Crocodylinae (crocodiles), and Gavialinae (gharials or gavials).
A fourth subfamily, Tomistominae, containing a single species, the False Gharial, Tomistoma shlegelii, has been proposed.
www.anapsid.org /aligato.html   (2409 words)

 Alligator Mississippiensis
As they grow larger, the crossbands fade, although the yellow crossbands may persist (but not conspicuously).
American Alligators can be distinguished from American crocodiles (crocodylus acutus) by their broadly rounded snout and the absence of the characteristic protruding 4th tooth of crocodiles (subfamily crocodylinae).
A resident of river swamps, lakes, marshes, and other bodies of water along the Atlantic coastal plain (see range maps and biogeography below), the alligator can often be seen basking or floating in the water in "wilder" areas.
people.wcsu.edu /pinout/herpetology/amississippiensis/intro.html   (578 words)

 Free-TermPapers.com - Alligators And Crocodiles
These differences are in their subfamilies, number of species, and the origination of their names.
Although the alligator and crocodile are both reptiles, the alligator belongs to the alligatorinae subfamily and the crocodile to the crocodylinae subfamily.
The alligator and crocodile also differ in their number of species.
www.free-termpapers.com /tp/3/alw3.shtml   (630 words)

 American Crocodile
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These reptiles are divided into three subfamilies: Alligatorinae, Crocodylinae, and Gavialinae, which each contain 23 species.
All these species live all around the world; they were e found from Lake Worth to the waters in and around the Florida Bay.
www.gotreptilesonline.com /crocodile/american-crocodile/american-crocodile.shtml   (147 words)

 Gallary   (Site not responding. Last check: 2007-10-31)
Total length of these animals can reach 20 feet.
Class: Reptilia Reptiles Diet: Small mammals Order: Crocodilia: Crocodiles, Alligators, Gavial Size: up to 6m (19 1/2 ft) Family: Crocodylinae Crocodiles Conservation Status: Endangered Scientific Name: Crocodylus porosus Habitat: estuaries, coasts, mangrove swamps Range: Southeastern India through Indonesia; Northern Australia
Size: The size of a crocodile is 8 meters long.
schoolweb.missouri.edu /ashland.k12.mo.us/2003-2004/cb/index2.htm   (359 words)

 Discovery Schools Australia - Discovery Channel's Resource for Australian Schools
What does the future hold for crocodile evolution?
Crocodilians are divided into three subfamilies: Alligatorinae, Crocodylinae, and Gavialinae, which each contain 23 species.
Divide your students into three groups and have each group research one of the subfamilies of crocodilians to locate where each species lives.
discoveryschools.com.au /TEACHER'SGUIDE/guide.php?id=56&s=4   (369 words)

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