Skull ontogeny: developmental patterns of fishes conserved across major tetrapod clades - PubMed (original) (raw)
Comparative Study
Skull ontogeny: developmental patterns of fishes conserved across major tetrapod clades
Rainer R Schoch. Evol Dev. 2006 Nov-Dec.
Abstract
In vertebrates, the ontogeny of the bony skull forms a particularly complex part of embryonic development. Although this area used to be restricted to neontology, recent discoveries of fossil ontogenies provide an additional source of data. One of the most detailed ossification sequences is known from Permo-Carboniferous amphibians, the branchiosaurids. These temnospondyls form a near-perfect link between the piscine osteichthyans and the various clades of extant tetrapods, retaining a full complement of dermal bones in the skull. For the first time, the broader evolutionary significance of these event sequences is analyzed, focusing on the identification of sequence heterochronies. A set of 120 event pairs was analyzed by event pair cracking, which helped identify active movers. A cladistic analysis of the event pair data was also carried out, highlighting some shared patterns between widely divergent clades of tetrapods. The analyses revealed an unexpected degree of similarity between the widely divergent taxa. Most interesting is the apparently modular composition of the cranial sequence: five clusters of bones were discovered in each of which the elements form in the same time window: (1) jaw bones, (2) marginal palatal elements, (3) circumorbital bones, (4) skull roof elements, and (5) neurocranial ossifications. In the studied taxa, these "modules" have in most cases been shifted fore and back on the trajectory relative to the Amia sequence, but did not disintegrate. Such "modules" might indicate a high degree of evolutionary limitation (constraint).
Similar articles
- Ossification patterns in the tetrapod limb--conservation and divergence from morphogenetic events.
Fröbisch NB. Fröbisch NB. Biol Rev Camb Philos Soc. 2008 Nov;83(4):571-600. doi: 10.1111/j.1469-185X.2008.00055.x. Epub 2008 Oct 20. Biol Rev Camb Philos Soc. 2008. PMID: 18947337 Review. - Evolution of ossification sequences in salamanders and urodele origins assessed through event-pairing and new methods.
Germain D, Laurin M. Germain D, et al. Evol Dev. 2009 Mar-Apr;11(2):170-90. doi: 10.1111/j.1525-142X.2009.00318.x. Evol Dev. 2009. PMID: 19245549 - Amphibian skull evolution: the developmental and functional context of simplification, bone loss and heterotopy.
Schoch RR. Schoch RR. J Exp Zool B Mol Dev Evol. 2014 Dec;322(8):619-30. doi: 10.1002/jez.b.22599. J Exp Zool B Mol Dev Evol. 2014. PMID: 25404554 - Cranial modularity and sequence heterochrony in mammals.
Goswami A. Goswami A. Evol Dev. 2007 May-Jun;9(3):290-8. doi: 10.1111/j.1525-142X.2007.00161.x. Evol Dev. 2007. PMID: 17501752 - Patterns and processes in the early evolution of the tetrapod ear.
Clack JA. Clack JA. J Neurobiol. 2002 Nov 5;53(2):251-64. doi: 10.1002/neu.10129. J Neurobiol. 2002. PMID: 12382279 Review.
Cited by
- The larval chondrocranium and its development in Smilisca phaeota with considerations of patterns characteristic for the chondrocranial development of Lalagobatrachia.
Ziermann-Canabarro JM, Lukas P. Ziermann-Canabarro JM, et al. Sci Rep. 2024 Aug 26;14(1):19779. doi: 10.1038/s41598-024-70724-9. Sci Rep. 2024. PMID: 39187639 Free PMC article. - Flexible conservatism in the skull modularity of convergently evolved myrmecophagous placental mammals.
Ferreira-Cardoso S, Claude J, Goswami A, Delsuc F, Hautier L. Ferreira-Cardoso S, et al. BMC Ecol Evol. 2022 Jun 30;22(1):87. doi: 10.1186/s12862-022-02030-9. BMC Ecol Evol. 2022. PMID: 35773630 Free PMC article. - Hearing without a tympanic ear.
Capshaw G, Christensen-Dalsgaard J, Carr CE. Capshaw G, et al. J Exp Biol. 2022 Jun 15;225(12):jeb244130. doi: 10.1242/jeb.244130. Epub 2022 Jun 20. J Exp Biol. 2022. PMID: 35724322 Free PMC article. Review. - Extreme growth plasticity in the early branching sauropodomorph Massospondylus carinatus.
Chapelle KEJ, Botha J, Choiniere JN. Chapelle KEJ, et al. Biol Lett. 2021 May;17(5):20200843. doi: 10.1098/rsbl.2020.0843. Epub 2021 May 12. Biol Lett. 2021. PMID: 33975484 Free PMC article. - It takes two: Building the vertebrate skull from chondrocranium and dermatocranium.
Pitirri MK, Kawasaki K, Richtsmeier JT. Pitirri MK, et al. Vertebr Zool. 2020 Apr;70(4):587-600. Epub 2020 Oct 28. Vertebr Zool. 2020. PMID: 33163116 Free PMC article.
Publication types
MeSH terms
LinkOut - more resources
Full Text Sources