Late Ontogeny in the Small Early Permian Amphibamiform Dissorophoid Pasawioops mayi
Late Ontogeny in the Small Early Permian Amphibamiform Dissorophoid Pasawioops mayi
复制标题
早二叠世小型两栖类 Dissorophoid Pasawioops mayi 的个体发育晚期
DOI:
10.1080/02724634.2020.1772800
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发表时间:
2020
影响因子:
1.4
通讯作者:
Maddin HC
中科院分区:
文献类型:
--
作者:
Atkins JB;Sourges P;Fröbisch NB;Reisz RR;Maddin HC
Ontogenetic series are rarely preserved in the fossil record, but when present they provide valuable insight into life history, developmental, and evolutionary patterns in extinct taxa. Here, we describe an intact, three-dimensionally preserved skull ofPasawioops mayi(Amphibamiformes, Micropholidae), which has not been fully described previously. Together with the holotype, also an intact skull, these two specimens ofPasawioopsare interpreted as part of an ontogenetic series. The two specimens differ in traits that are thought to change during ontogeny in temnospondyls, including elongation of the postorbital region, transformation of the palatal dentition from small groups of denticles to significantly larger teeth, and a posteriorly shifting lower jaw articulation. We survey previously described amphibamiform taxa and use the ontogenetic data derived fromPasawioopsto identify other potential ontogenetic series (e.g.,Eoscopus). Additionally, we briefly compare amphibamiform ontogenetic series to known ontogenetic data of olsoniform and micromelerpetontid dissorophoids, and other early tetrapod lineages, to determine the extent to which ontogeny may or may not be conserved across these lineages. Several aspects of the ontogeny ofPasawioopsare found to be present in lissamphibians and Amphibamiformes (i.e., branchiosaurids and amphibamids), revealing that some ontogeny-dependent traits are highly conserved within this group, whereas others are more broadly conserved across other tetrapod lineages.
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影响因子:
2.6
作者:
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通讯作者:
R. Schoch
DOI:
--
发表时间:
2009
影响因子:
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DOI:
--
发表时间:
2013
期刊:
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DOI:
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发表时间:
1985
期刊:
影响因子:
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通讯作者:
Everett C. Olsen
DOI:
--
发表时间:
1986
期刊:
影响因子:
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作者:
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通讯作者:
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