Skip to main content
×
Home
    • Aa
    • Aa

Evolutionary modifications of ontogeny of three Dechenella species (Proetidae), from the Middle Devonian of the Ardenne Massif (France)

  • Arnaud Bignon (a1) and Catherine Crônier (a2)
Abstract

Numerous exuviae of three Dechenella species (D. givetensis, D. ziegleri and D. calxensis) from the Middle Devonian (Givetian) of NE France (Ardenne Massif) provide the opportunity to identify the evolutionary modifications of ontogeny of the three Dechenella species and to elaborate a conceptual framework of developmental shape changes. First we used biometric and morphometric approaches to characterize shape modifications. Then we computed ontogenetic trajectories by multivariate regression of geometric shape variables on centroid size in order to compare them. Finally, we compared parallelism between trajectories and rates of development relative to size. These analyses demonstrate a significant difference in the cranidial developmental trajectories of D. givetensis and D. ziegleri indicating an allometric repatterning. However, pygidia of these species share the same allometric pattern with a distinct developmental rate suggesting that heterochrony could be a partial explanation for the body shape evolution. Pygidial ontogeny of D. calxensis corresponds to an allometric repatterning with respect to both other species. This work illustrates the complexity of evolutionary modifications of ontogeny constituting an important process in morphological novelties.

Copyright
References
Hide All
P. Alberch 1985. Problems with the interpretation of developmental sequences. Systematic Zoology, 34:4658.

C. Crônier , R. Feist , and J. C. Auffray 2004. Variation in the eye of Acuticryphops (Phacopina, Trilobita) and its evolutionary significance: A biometric and morphometric approach. Paleobiology, 30:471481.

C. Crônier , J. C. Auffray , and P. Courville 2005. A quantitative comparison of the ontogeny of two closely-related Upper Devonian phacopid trilobites. Lethaia, 38:123135.

G. D. Edgecombe and B. D. E. Chatterton 1987. Heterochrony in the Silurian radiation of encrinurine trilobites. Lethaia, 20:337351.

S. Gerber , P. Neige , and J. Eble 2007. Combining ontogenetic and evolutionary scales of morphological disparity: A study of early Jurassic ammonites. Evolution and Development, 9:472482.

S. J. Gould 2000. Of coiled oyster and big brains: How to rescue the terminology of heterochrony, now gone astray. Evolution and Development, 2:241248.

N. C. Hughes and R. E. Chapman 1995. Growth and variation in the Silurian proetide trilobite Aulacopleura konincki and its implications for trilobite palaeobiology. Lethaia, 28:333353.

B. R. Hunda and N. C. Hughes 2007. Evaluating paedomorphic heterochrony in trilobites: the case of the diminutive trilobite Flexicalymene retrorsa minuens from the Cincinnatian Series (Upper Ordovician), Cincinnati region. Evolution and Development, 9:483498.

K. Kim , H. D. Sheets , R. A. Haney , and C. E. Mitchell 2002. Morphometric analysis of ontogeny and allometry of the Middle Ordovician trilobite Triarthrus becki. Paleobiology, 28:364377.

C. P. Klingenberg 1998. Heterochrony and allometry: The analysis of evolutionary change in ontogeny. Biological Reviews, 73:79123.

W. W. Y. Lau and M. M. Martinez 2003. Getting a grip on the intertidal: Flow microhabitat and substratum type determine the dislodgement of the crab Pachygrapsus crassipes (Randall) on rocky shores and in estuaries. Journal of Experimental Marine Biology and Ecology, 295:121.

R. Lerosey-Aubril and R. Feist 2006. Late ontogeny and hypostomal condition of a new cyrtosymboline trilobite from the Famennian of Morocco. Palaeontology, 49:10531068.

R. Motani 1997. New technique for retrodeformation tectonically deformed fossils, with an example for ichtyosaurian specimens. Lethaia, 30:221228.

F. J. Rohlf and D. E. Slice 1990. Extensions of the Procrustes method for the optimal superimposition of landmarks. Systematic Zoology, 39:4059.

M. L. Zelditch , H. D. Sheets , and W. L. Fink 2000. Spatiotemporal reorganisation of growth rates in the evolution of ontogeny. Evolution, 54:13631371.

M. L. Zelditch , H. D. Sheets , and W. L. Fink 2003a. The ontogenetic dynamics of shape disparity. Paleobiology, 29:139156.

M. L. Zelditch , B. L. Lundigran , H. D. Sheets , and T. Garland Jr. 2003b. Do precocial mammals develop at a faster rate? A comparison of rates of skull development in Sigmodon fulviventer and Mus musculus domesticus. Journal of evolutionary Biology, 16:708720.

Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Journal of Paleontology
  • ISSN: 0022-3360
  • EISSN: 1937-2337
  • URL: /core/journals/journal-of-paleontology
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 3 *
Loading metrics...

Abstract views

Total abstract views: 37 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 17th October 2017. This data will be updated every 24 hours.