Posted by:
ChrisAnderson
at Mon Nov 8 22:52:18 2004 [ Email Message ] [ Show All Posts by ChrisAnderson ]
>>Chris,
>>
>>Hmmm..I hadn't heard of Reptilia used as a strict phylogenetic term. Just a more informal grouping. The classification you listed is slightly different than from what I have learned, which is:
>>
>>Amniotes are divided into the Synapsids and Sauropsids, which include Chelonids. Then of course are also Lepidosaurs and Archosaurs. The term reptile was not used in any formal classification, though we talk about mammalian ancestors (Therapsids) as "mammal-like reptiles".
>>
>>Guess our disagreement comes from the definition of "reptile". There are so many different opinions in science, how confusing it gets.
>>
>>Know anything about bats? I'm writing a paper on their phylogenetic relatioships, yipee.
>>
>>Think we'll get booted from the Cham forum?
>>
>>-----
>>~Melissa
>>1.0 Ambanja Panther (Diesel)
>>0.1 African Hegdehog (Kaimah)
Melissa,
You are correct, Sauropsida and Synapsida are the Phylogenetic Systematics names for the groups while Reptilia and Mammalia are, respectively, the more general names of these outgroups (my text includes both names in their trees). I think the confusion is with the "mammal-like reptiles." I don't think this description is meant to link either group by relation any further then their Amniota heritage. However, many people to not realize that, like you said, Aves are part of the Reptilia clade.
Chris
-----
Chris Anderson
parsonii_hoehnelii@hotmail.com
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RE: Question for you smarty-pantses. - ChrisAnderson, Mon Nov 8 22:52:18 2004