Talk:Crocodilia

PICTURE

The picture is of an ALLIGATOR not Crocodile. —Preceding unsigned comment added by 71.204.62.44 (talk) 01:39, 20 April 2009 (UTC)

Extinct Suborders

Need to add extinct suborders etc to chart Andrewa 02:27 9 Jul 2003 (UTC)

Done! Andrewa 23:42 10 Jul 2003 (UTC)

The popular culture article needs to be expanded, as it is not very precise. --DeadGuy 00:51, 20 October 2006 (UTC)

Dinosaurs are birds?

Why does that myth float around wikipedia? Crocodilians being related to birds? do you really believe that? —Preceding unsigned comment added by 72.49.0.136 (talk) 14:44, 1 September 2008 (UTC)

Well birds are dinosaurs I guess. But saying that crocodilians are related to birds is like saying we're related to...so something really distantly related. —Preceding unsigned comment added by 128.135.113.75 (talk) 19:11, 26 October 2009 (UTC)

Dinosaurs are NOT birds. Birds however, are dinosaurs because they evolved from a subgroup of theropods called the Maniraptora. Crocodilians are the closest relatives to birds because they are both archosaurs. I know this message is late, but I had to say something about it. Mistermister93 10:13, 14 January 2011 — Preceding unsigned comment added by Mrmister93 (talk • contribs)

Source?

"Eusuchia, a modern clade which includes the crown group Crocodylia, first appeared in the Lower Cretaceous of Europe. Isisfordia duncani lived approximately 95 to 98 million years ago, during the Cenomanian epoch of the Upper Cretaceous. Isisfordia is the second oldest known eusuchian, and the earliest crocodilomorph yet found in Australia."

I cant find evidence that Eusuchia first appeared in Europe, furthermore if Isisfordia duncani is the second oldest known eusuchian, whats the oldest? Counter to this I found this article stating that crocodilians first appeared in Australia. http://www.uq.edu.au/news/?article=9853

Mloren 03:54, 24 March 2007 (UTC)

• Hylaeochampsa vectiana is the oldest known eusuchian. It was found on the Isle of Wight in the Vectis Formation. This makes it more than 110 millions years ago, and thusly making it the oldest known eusuchian. However, the study by Salisbury et al, finds Isisfordia to be more basal than Hylaeochampsa. They thereby infer that Eusuchia evolved in Gondwana, rather than on any of the northern continents. Which may be the case, or Isisfordia could have migrated to Gondwana. More basal eusuchians need to be found until we "know" were they originated. Mark t young 14:22, 24 March 2007 (UTC)

Source Format

I just added a really good general source on shunting in reptiles, as I corrected some inaccuracies in the "Internal Organs" section. I listed it as a journal source, and I haven't been able to successfully add a link to the author's webpage, where a PDF of the article is available. (When I try to do it with the template, I only get the last name, not the first.) Anyway, Jim Hick's website is here [[1]]. I admit that my first attempt at re-writing the paragraph resulted in some sub-standard prose. I strongly suggest that people read that article before editing on shuts, though, because it's really easy to read and is a good review. Enuja 20:02, 16 April 2007 (UTC)

Lead mention of Crocodylomorpha

There is already a link of Crocodylomorpha in the taxo-box; isn't that enough? I'd like to reserve notes at the top of the page for things that people will find useful when they arrive at the page; almost no-one, I think, would be looking for Crocodylomorpha, and if there were, they would be able to find it in the taxo-box. Am I missing an important reason to put it up top? Enuja 01:59, 17 April 2007 (UTC)

I agree--that can be explained in the classification section it doesn't need a disambig. Dinoguy2 02:07, 17 April 2007 (UTC)

Okay, I'm removing it. Enuja 04:45, 20 April 2007 (UTC)

Ambulocetidae

I don't really know what these two sentences are doing in this article.

Mammals, too, have adapted to this body plan at least once in history. One ancestral whale family, the Ambulocetidae, were aquatic predators living in rivers and lakes, and they filled an ecological niche similar to the crocodilians.

Anybody think that belongs? If so, could you edit it to flow more smoothly and flow more smoothly from the previous sentence? If not, I'll just delete it, but I didn't want to delete a link to another article if others think that it is relevant. Enuja 04:45, 20 April 2007 (UTC)

Differentiation

The section on the differences between alligators and crocodiles needs to be much improved. To say that they are as different as humans are to gorillas is saying nothing. They are of the same family, right? So, tell me how they are different. They look alike, they walk alike, so please explain their differences. JJ 23:46, 20 April 2007 (UTC)

Differences between alligators and crocodiles

Per discussion on both articles talk pages, I have merged this section in here to keep all the information in one place and not maintain two parallel sections. I have added a link from the top of both articles to this section disambiguation style so it is still easy to find from both independent articles. Mfield (talk) 15:48, 17 June 2008 (UTC)

Looks good. StevePrutz (talk) 23:30, 17 June 2008 (UTC)

Navbox?

I was thinking about creating a navbox to quickly jump around all the species, and also include related articles. Anyone else think this is a good idea? StevePrutz (talk) 01:44, 24 June 2008 (UTC)

I have started to brainstorm in my sandbox, to potentially be Template:Crocs. Please give feedback here. StevePrutz (talk) 04:24, 24 June 2008 (UTC)

The work is done. Please add {{Crocs}} to the bottom of any crocodilian article. StevePrutz (talk) 00:55, 26 June 2008 (UTC)

Common name capitalization

I noticed there is inconsistency in some croc article titles. Some capitalize the second part of a common name (e.g. Freshwater Crocodile), while others do not (e.g. Philippine crocodile). I believe the latter is better for searching. Is there a standard for herps? StevePrutz (talk) 23:26, 26 June 2008 (UTC)

the birds wikiproject uses caps for accepted common names (this seems to be the broader consensus in ornithology as well). the Reptiles & Amphibians wikiproject standard for the Tree of Life project, unless i'm mistaken: Wikipedia:WikiProject Tree of Life#Article titles. Mammal articles pretty much stick to one or the other (upper or lower case), depending on what the format was before the question arose. if there hasn't been some discussion over what's what, it may be best to just go that route till consensus has been established by the wikiproject. i know that's late, but hope it helps.... - Μετανοιδ (talk, email) 00:59, 31 July 2008 (UTC)

Unfair to alligators

Footballfan190, i'm partial to alligators, so i wish you had prompted some discussion before your switch. but i guess one species is as good as another, given that both alligators and crocodiles are Crocodilians. ahem. --Μετανοιδ (talk, email) 06:32, 3 August 2008 (UTC)

I've reverted it, the image switched in is already in the article in the differences section. Plus I have added clarification to the lead that Crocodilia covers the Alligator and Crocodile sub families for anyone who doesn't notice the different word or cannot be bothered to read the article. Mfield (talk) 15:17, 3 August 2008 (UTC)

List of crocodilians

Is there a need for a list of crocodilians? --The High Fin Sperm Whale (talk) 20:47, 22 October 2009 (UTC)

I don't think so - there's only 23 species in 7 genera, so it's not exactly a massive group. If you want to make a list, go to Anolis - the page would be much better if that list of species were just on a list page. Mokele (talk) 20:54, 22 October 2009 (UTC)

Construction underway! --The High Fin Sperm Whale (talk) 17:03, 26 October 2009 (UTC)

Crocodilia or Crocodylia ?

Hi, its Crocodilia Owen, 1842 or Crocodylia Gmelin 1789 ? Burmeister (talk) 03:38, 16 April 2010 (UTC)

Last I heard, they were different but nested groups, with the only members of crocodylia who aren't in crocodilia being some extinct forms. But crocodilian taxonomy, especially including extinct species, is nothing short of a nightmare. It's probably changed about 4 times since I heard that. Mokele (talk) 11:59, 16 April 2010 (UTC)

I'm agree, this is a nightmare. Recently i found a paper from Martin & Benton (Syst. Biol. 57, 2008) that comment: "For clarity, we suggest that the term Crocodylia should be used" (...) “Crocodilia” has been widely used in textbooks and defines exactly the same thing as Crocodylia: Protosuchia, Mesosuchia, and Eusuchia. Reasons for preferring the usage of Crocodylia over Crocodilia are expressed by Dundee (1989)." I don't have Dundee's paper to confirm the reasons for preference (Dundee H.A. 1989. Higher category name usage for amphibians and reptiles. Syst. Zool. 8:389–406). Crocodylia is widely used in recent paleontological papers, and this cause my doubts about the correct order's name. Burmeister (talk) 21:23, 16 April 2010 (UTC)

Heart Chambers

Crocodilia have five heart chambers. The four everyone thinks of, and the sinus venosus. Although the sinus venosus is reduced, it is still a chamber. Blood enters the sinus venosus before it enters the right atrium. — Preceding unsigned comment added by 97.90.159.19 (talk) 05:10, 26 May 2011 (UTC)