title: Lenticellaria and Hillerella, new kraussinoid genera (Kraussinoidea, Brachiopoda) from Indo-Pacific and Red Sea waters: evolution in the subfamily Megerliinae.
abstract: Two new kraussinid brachiopod genera, namely Lenticellaria gen. nov. and Hillerella gen. nov. are described from Pacific waters in the sub-equatorial zone in the Indonesian Archipelago, from Indian Ocean waters in Madagascar and from Red Sea waters in Egypt (Gulf of Aqaba) and Sudan. This fills the equatorial gap in the distribution of the superfamily Kraussinoidea, known from higher latitudes in both hemispheres. The micromorphic new material described is an excellent example of homeomorphy in brachiopods. It also provides new information on the distribution of the genus Megerlia sensu stricto and illustrates subtle variations in the evolutionary process of the reduced brachidium in Kraussinoidea.
authors.affiliation: Royal Belgian Institute of Natural Sciences. O.D. Earth and History of Life, Vautier street, 29, B-1000 Brussels, Belgium.; Email: ericsimon98brach@gmail.com.
authors.forename: Eric G
authors.initials: EG
authors.lastname: Simon
authors.affiliation: Centre for Coastal Studies, University of New Brunswick, Saint John, N.B., E2L 4L5, Canada.; Email: logan@unbsj.ca.
authors.forename: Alan
authors.initials: A
authors.lastname: Logan
authors.affiliation: Intitut für Paläontologie der Universität Wien, Geozentrum, Althan street, 14, Vienna,1090 Austria.; Email: martin.zuschin@univie.ac.at.
authors.forename: Martin
authors.initials: M
authors.lastname: Zuschin
authors.affiliation: Muséum National d'Histoire Naturelle, 57 Rue Cuvier, 75005 Paris, France.; Email: mainguy@mnhn.fr.
authors.forename: Jerome
authors.initials: J
authors.lastname: Mainguy
authors.affiliation: Royal Belgian Institute of Natural Sciences. O.D. Earth and History of Life, Vautier street, 29, B-1000 Brussels, Belgium.; Email: bmottequin@naturalsciences.be.
authors.forename: Bernard
authors.initials: B
authors.lastname: Mottequin
mesh_terms: D063147:Animal Distribution; D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D049628:Body Size; D017753:Ecosystem; D019156:Indian Ocean; D007448:Invertebrates / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D009929:Organ Size; D010140:Pacific Ocean