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Is this chart correct

JM29

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It seems correct. The main subgenera (Ambystoma, Heterotriton, Linguaelapsus and Xiphonura) within Ambystoma are respected.
You can find a more complete tree in
Ambystomatidae
 

FrogEyes

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No. It's outdated and there have been significant changes. The subgenera need to be re-evaluated, as more than one contains unrelated species. The Ambystoma macrodactylum complex, A.maculatum, and A.gracile seem to have no close relatives and should not be included in any subgenus with other species. I don't have time at the moment to dig up the 3 or so most current papers on caudate phylogeny, as I'm at work.
 

TheAmphibianGuy

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So Dicamptodon and Rhyacotriton salamanders are some what kind of related to Ambystoma? also on that chart those cross things next to the scientific names mean their extinct?

Also is rhyacosiredon another name for ambystoma because in this chart Ambystomatidae
Ambystoma Leorae is listed as Rhyacosiredon Leorae
 
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JM29

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Dicamptodon is related to Ambystoma.
In the Tolweb chart, the old name Rhyacosiredon is sometimes used instead of Ambystoma. Nothing to do with Rhyacotriton.

For more recent updatings, let's wait for FroEyes'data. Taxonomy and phylogeny are changing so fast nowadays.
 

FrogEyes

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Rhyacotriton is more closely related to Plethodontidae and Amphiumidae.

Dicamptodon is closer to Ambystoma. Those who look only at living species tend to combine them in a single family. However, there are fossil species of Dicamptodon, and genera related to Dicamptodon, leading others to maintain separate but related families.

Rhyacosiredon, Siredon, and Bathysiredon are synonyms of Ambystoma, and more specifically Heterotriton. That is, they are neotenic members of the tiger salamander group, with Siredon and Bathysiredon being applied to lake-dwelling neotenes and Rhyacosiredon being applied to the stream-dwelling neotenes.

The most up to date source for Amphibian taxonomy, including synonym lists for every species and higher group, is Amphibian Species of the World [online edition]. It has errors, omissions, and items which are not universally agreed upon, but it is nonetheless the most current, correct, and useful source on the subject:
Amphibian Species of the World

Under "Caudata" you will find a long discussion with all the significant references you need. Most or all can be found online at no charge. If you start with the most recent paper, generally it will list all the other recent useful papers in the references.

Edit - yes, the symbol that resembles a cross or "dagger" usually is used for an extinct taxon, but you should always check the source to be sure of what THEY intend the symbols to mean.
 
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    she should be ok as axolotls can regenerate limbs, the only this i would say is to mabey feed the male more as this type of behavuor is uslay down to hunger.
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    hey, anyone know how long bloodworms can stay in an axolotl tank before they begin to rot and cause an ammonia spike?
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    I think it is always best to get them out asap but probably two days or so.
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  • Shane_Yogurt:
    its around 3 small pieces in the tank. Since i've just moved homes, my axolotl is still at my old house. Yesterday i fed him bloodworms and he missed a few. I couldnt get them out without a turkey baster and decided to let them sit because i was gonna move him to the house tomorrow. But now its late and I dont have a car and my dad wont drive me. Will he be fine?
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    I would think so i would just try to get them out tomorrow
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    yeah, im heading over tomorrow morning to move him to this house and feed him. Thanks for the help!
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  • Shane_Yogurt:
    So my axolotl tank cycle just crashed and while i was in the middle of a water change my bucket overflowed and spilled water all of the ground in my brand new home. This is going super well 👍
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    ooff
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    good luck recycling the tank!
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    do the classifieds still exist?
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    nevermind! off my game tonight
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    Im so frustrated right now. My axolotl WONT eat and my tank still isnt looking too good. Some extra stress i needed.
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    Sorry to hear that Shane. Did you post about it?
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    No, I havent. Im not really sure why he wont eat. Hes in a 1 gallon tub and still a juvenile. When i offer food he swims away from it. Does he need some extra time? or is this something I should be worried about.
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    Hello everyone! I’m new in this world and i need some advices please! I have 2 axolotl babies and currently the water from the tank is from bottled water ( all parameters are good) but i want to change 50% of the water with city tap water. My question is how to change it? Do i need to get axis out, do the change, add the prime, wait (how much?) until its dechlorinated or i can add the tap water directly into the tank with axis in it, and add the prime conditioner? Thank you!!
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    1. You dont need to take them out of the tank to change the water as long as you pour it in slow as to not rattle them around too much
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    2. add the prime to your tap water, for most conditioners the consensus is 5 minutes of waiting time
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    3.After 5 minutes it should be safe to add
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    Thank you so much !!
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    I private messaged you a bit clearer instructions just in case
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    Where can I get blackworms?
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    Ebay or Eastern Aquatics
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    Does anyone know someone who can ship axolotls to hawaii? I recently did a water change and my axolotl died and there are no axos for sale right now.
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