Rib fabrication in Ostreoidea and Plicatuloidea (Bivalvia, Pteriomorphia) and its evolutionary significance

Checa, António; Jiménez-Jiménez, Antonio Pablo

doi:10.1007/s00435-003-0080-5

Cited by 25 publications

(22 citation statements)

References 25 publications

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“…According to the authors, E. hungaricum should be considered as a possible plicatulid of uncertain generic relations. Some species traditionally included in Enantiostreon, such as E. cristadifformis Schlotheim, 1823, and E. spondyloides Schlotheim, 1823, clearly belong to Ostreidae, since they attached by the left valve and had a hinge without diagnostic structures (Checa & Jiménez-Jiménez, 2003b); they are included in Umbrostrea Hautmann, 2001a(Márquez-Aliaga & others, 2005.…”

Section: Enantiostreon Bittner 1901c P 70mentioning

confidence: 99%

Sedimentology, Paleontology, and Sequence Stratigraphy of Early Permian Estuarine Deposits, South-Central New Mexico, USA

Mack

Leeder

Pérez‐Arlucea

et al. 2003

PALAIOS

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Section: Enantiostreon Bittner 1901c P 70mentioning

confidence: 99%

Sedimentology, Paleontology, and Sequence Stratigraphy of Early Permian Estuarine Deposits, South-Central New Mexico, USA

Mack

Leeder

Pérez‐Arlucea

et al. 2003

PALAIOS

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“…Furthermore, the present authors argue that the poor folded syntypes of P. heermanni could be unusual specimens in the Formation, as was pointed out by Hertlein & Grant (1972) and supported by own observations (Figure 8). The understanding of the folds morphogenesis in oysters (Checa & Jiménez-Jiménez, 2003), and the infl uence of the environmental conditions in this process (Arnold, 1909) can explain the folds variation in specimens like syntypes.…”

Section: Discussionmentioning

confidence: 99%

“…Additionally, folds disposition is like in Ostreidae, which allows understanding the wide variation in developing and number. Checa & Jiménez-Jiménez (2003) pointed out the oblique disposition of folds in relation with the shell margin, and related it to a specifi c morphogenetic process. The living organisms have the mantle with marginal plications.…”

Section: Cristín and Perrilliat -Late Cenozoic Hyotissa From Western Nomentioning

confidence: 99%

Revision of the Late Cenozoic Hyotissa (Bivalvia: Pycnodonteinae) from Western North America

Cristín¹,

Perrilliat²

2013

rev. bras. paleontol.

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-Some Neogene Pycnodonte species, related to the ancient Gulf of California and coastal California, are morphologically similar to Hyotissa hyotis (Linnaeus), the living honeycomb oyster. Morphological variation in these species or in H. hyotis has never been studied. In order to document variation and use the results to detect a possible taxonomic overspliting, the present authors described the morphology and morphometry of fossil shells of H. hyotis from the early Pleistocene Loreto Basin, Baja California Sur, Mexico. It was compared with type and non-type specimens from the Early Miocene Vaqueros sandstone (coastal California), Late Miocene rocks of Isla Tiburón (Gulf of California), Pliocene Imperial Formation (southern California) and Pleistocene rocks in Loreto area (Gulf of California). The specimens from coastal California and Isla Tiburón were re-assigned to a new genus, and to Hyotissa cf. H. hyotis; and synonymized P. (Pycnodonte) heermanni (Conrad) from southern California with H. hyotis. With this new information, the fossil record of Hyotissa in western America ranges from Early Miocene to Recent; H. hyotis lived through the whole ancient Gulf of California during the Pliocene, contrary to the current distribution in the modern gulf. Finally, Hyotissa species exhibit a little variable morphology, which is contrary to traditional views, complicating Pycnodonteinae taxonomy and classifi cation.

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“…We propose a model on the premise that biological morphogenesis is proximately a mechanical process (14,15). Such an idea has been proposed empirically and theoretically for the genesis of ornamentation by different authors (16)(17)(18)(19). Explicit models can be found in two previous works that address shell formation from a mechanical perspective.…”

Section: Mechanical Modelmentioning

confidence: 99%

Mechanical basis of morphogenesis and convergent evolution of spiny seashells

Chirat

Moulton

Goriely

2013

Proc. Natl. Acad. Sci. U.S.A.

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Convergent evolution is a phenomenon whereby similar traits evolved independently in not closely related species, and is often interpreted in functional terms. Spines in mollusk seashells are classically interpreted as having repeatedly evolved as a defense in response to shell-crushing predators. Here we consider the morphogenetic process that shapes these structures and underlies their repeated emergence. We develop a mathematical model for spine morphogenesis based on the mechanical interaction between the secreting mantle edge and the calcified shell edge to which the mantle adheres during shell growth. It is demonstrated that a large diversity of spine structures can be accounted for through small variations in control parameters of this natural mechanical process. This physical mechanism suggests that convergent evolution of spines can be understood through a generic morphogenetic process, and provides unique perspectives in understanding the phenotypic evolution of this second largest phylum in the animal kingdom.H omoplasy, the appearance of similar traits in separate evolutionary lineages as a result of convergence, parallelism, or evolutionary reversals, is a major concern in phylogenetic analysis for which it is viewed as noise. However, over the past two decades, homoplasy has also become a subject of increasing interest, stimulated by the rise of evolutionary developmental biology (evo devo) and the wish to uncover the developmental basis of this phenomenon (1-3). Spines constitute the most prominent ornamentation of mollusk shells and have evolved in many distantly related fossil and current mollusk species (at least 55 genera and 21 families of current gastropods; 10 genera and 8 families of current bivalves; 11 genera and 8 families of ammonoids; and 6 fossil nautiloid genera; see Fig. 1 for examples). Convergent evolution of spines in mollusks has been addressed in functional terms, these structures being interpreted as having evolved as a defense in response to shell-crushing predators (4-6). This hypothesis is itself the basis of the widely cited "escalation hypothesis," according to which long-term trends in the fossil record were caused by the evolutionary response of prey to predation pressure (7). The idea that convergent evolution of similar mollusk ornamentations might be fully explained in functional terms is based on the premise that similar characters, perceived as well designed for a presumed function, cannot conceivably have independently evolved fortuitously. Therefore, natural selection is thought to have repeatedly shaped similar functional traits out of random variations.Over the past two decades, there has been an increasing awareness that selectionist hypotheses on their own have partial explanatory value for understanding the evolution of biological form, because they do not address the origin of traits thought to increase reproductive success (8-10). In other words, even if spines act in some species as protection against predators, to hypothesize that this feature has sprea...

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Rib fabrication in Ostreoidea and Plicatuloidea (Bivalvia, Pteriomorphia) and its evolutionary significance

Cited by 25 publications

References 25 publications

Sedimentology, Paleontology, and Sequence Stratigraphy of Early Permian Estuarine Deposits, South-Central New Mexico, USA

Sedimentology, Paleontology, and Sequence Stratigraphy of Early Permian Estuarine Deposits, South-Central New Mexico, USA

Revision of the Late Cenozoic Hyotissa (Bivalvia: Pycnodonteinae) from Western North America

Mechanical basis of morphogenesis and convergent evolution of spiny seashells

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