Essai d'un nouveau système des habitations des vers testacés : avec XXII planches

A new gastropod fauna of Burdigalian (early Miocene) age is described from the Iranian part of Makran. The fauna comprises 19 species and represents three distinct assemblages from turbid water coral reef, shallow subtidal soft-bottom and mangrove-fringed mudflat environments in the northern Indian Ocean. Especially the reef-associated assemblage comprises largely new species. This is explained by the rare occurrence of reefs along the northern margin of the Miocene Indian Ocean and the low number of scientific studies dealing with the region. In terms of paleobiogeography, the fauna corresponds well to coeval faunas from the Pakistani Balochistan and Sindh provinces and the Indian Kathiawar, Kutch and Kerala provinces. During the early Miocene, these constituted a discrete biogeographic unit, the Western Indian Province, which documents the near complete biogeographic isolation from the Proto-Mediterranean Sea. Some mudflat taxa might represent examples of vicariance following the Tethys closure. The fauna also displays little connection with coeval faunas from Indonesia, documenting a strong provincialism within the Indo-West Pacific Region during early Miocene times. Neritopsis gedrosiana sp. nov., Calliostoma irerense sp. nov., Calliostoma mohtatae sp. nov. and Trivellona makranica sp. nov. are described as new species.

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“…Type species. Melongena fasciata Schumacher, 1817 (= Murex melongena Linnaeus, 1758 ); by monotypy. Recent, Caribbean.…”

Section: Methodsmentioning

confidence: 99%

Early Miocene reef- and mudflat-associated gastropods from Makran (SE-Iran)

Harzhauser

Reuter

Piller

2017

PalZ

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“…Eight verrucid genera are currently recognized, and for a key to these reference is made to Young (1998). To date, only three genera are known to have a fossil record, namely Costatoverruca Young, 1998, Metaverruca Pilsbry, 1916 and Verruca Schumacher, 1817.…”

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confidence: 99%

Taphonomy and systematics of a new Late Cretaceous verrucid barnacle (Cirripedia, Thoracica) from Canterbury, New Zealand

Buckeridge

2011

Palaeontology

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Cirripede remains (Thoracica, Verrucomorpha), found associated with the mosasaur Prognathodon waiparaensis Welles and Gregg, 1971 in glauconitic sands of the Late Cretaceous Conway Formation exposed along the Waipara River bank (mid-Canterbury, New Zealand), are identified as a new species, Verruca sauria sp. nov. On the basis of taphonomy, it is deduced that these verrucids grew on a postmortem accumulation of mosasaur bones under very quiescent conditions. The current amphitropical distribution of the earliest known verrucids, i.e. V. sauria sp. nov

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“…Among other bivalve groups, this adult morphology is also recorded in species of the Veneroidea and Palaeoheterodonta. Some species of Veneridae genera as Anomalocardia Schumacher, 1817 , Lirophora Conrad, 1863 , Chionopsis Olsson, 1932 , Lamelliconcha Dall, 1902 , Macrocallista Meek, 1876 , and Antigona Schumacher, 1817 , among others, have adult shells with a projected posterior end and elongated outlines. Some Trigoniidae taxa lead this morphology to the extremes, with the development of wide and very projected posterior ends (e.g., Francis & Hallam, 2003 ).…”

Section: Discussionmentioning

confidence: 99%

Allometric shell growth in infaunal burrowing bivalves: examples of the archiheterodontsClaibornicardia paleopatagonica(Ihering, 1903) andCrassatella kokeniIhering, 1899

Pérez

Santelli

2018

PeerJ

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We present two cases of study of ontogenetic allometry in outlines of bivalves using longitudinal data, a rarity among fossils, based on the preserved post-larval record of shells. The examples are two infaunal burrowing bivalves of the southern South America, Claibornicardia paleopatagonica (Archiheterodonta: Carditidae) (early Paleocene) and Crassatella kokeni (Archiheterodonta: Crassatellidae) (late Oligocene–late Miocene). Outline analyses were conducted using a geometric morphometric approach (Elliptic Fourier Analysis), obtaining successive outlines from shells’ growth lines, which were used to reconstruct ontogenetic trajectories. In both taxa, ontogenetic changes are characterized by the presence of positive allometry in the extension of posterior end, resulting in elongated adult shells. This particular allometric growth is known in others infaunal burrowing bivalves (Claibornicardia alticostata and some Spissatella species) and the resulting adult morphology is present in representatives of several groups (e.g., Carditidae, Crassatellidae, Veneridae, Trigoniidae). Taxonomic, ecological and evolutionary implications of this allometric growth pattern are discussed.

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Essai d'un nouveau système des habitations des vers testacés : avec XXII planches

Cited by 96 publications

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Early Miocene reef- and mudflat-associated gastropods from Makran (SE-Iran)

Early Miocene reef- and mudflat-associated gastropods from Makran (SE-Iran)

Taphonomy and systematics of a new Late Cretaceous verrucid barnacle (Cirripedia, Thoracica) from Canterbury, New Zealand

Allometric shell growth in infaunal burrowing bivalves: examples of the archiheterodontsClaibornicardia paleopatagonica(Ihering, 1903) andCrassatella kokeniIhering, 1899

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