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Echinoidea taxon detailsPlacentinechinus Borghi & Garilli, 2016 †
882247 (urn:lsid:marinespecies.org:taxname:882247)
accepted
Genus
Placentinechinus davolii Borghi & Garilli, 2016 † (type by original designation)
marine,
fossil only
masculine
Borghi, E. & Garilli, V. (2016). A new subtropical-temperate brooding echinoid with no marsupium: the first Mediterranean and the last European Temnopleuridae from the Early Pleistocene of Italy. <em>Journal of Systematic Palaeontology.</em> 1-25., available online at https://doi.org/10.1080/14772019.2016.1184191
page(s): 10-12 [details]
Etymology Combination of the Latin word placentinus, for inhabitant of Placentia (today Piacenza), the most important town in the...
Etymology Combination of the Latin word placentinus, for inhabitant of Placentia (today Piacenza), the most important town in the area where the majority of the specimens were collected, and the suffix echinus (Latin word for sea urchin) [details]
Kroh, A.; Mooi, R. (2021). World Echinoidea Database. Placentinechinus Borghi & Garilli, 2016 †. Accessed at: https://www.marinespecies.org/Echinoidea/aphia.php?p=taxdetails&id=882247 on 2024-04-18
original description
Borghi, E. & Garilli, V. (2016). A new subtropical-temperate brooding echinoid with no marsupium: the first Mediterranean and the last European Temnopleuridae from the Early Pleistocene of Italy. <em>Journal of Systematic Palaeontology.</em> 1-25., available online at https://doi.org/10.1080/14772019.2016.1184191
page(s): 10-12 [details] From editor or global species database
Diagnosis Small temnopleuroid echinoid with wheelshaped test, flattened above and below. Apical disc always much larger than the peristome and forming up to 82% of the test diameter in the largest (adult) specimens. The first 4-6 couples of pores adorally not well separated by a wall and confluent on the inner surface of the plates. Interambulacral plates wide and low adapically, becoming narrower and taller adorally, always with a single primary tubercle. Angular pits deep, with steep edges; they are lacking adapically. Small sutural pits occur at each triple junction, also in the ambulacra. Primary tubercles surrounded by a slightly depressed areole. Low horizontal ridges at the adapical edge of both ambulacral and interambulacral plates. All tubercles finely, but distinctly, crenulate. Auricles not joined above. Buccal notches almost absent. No morphological trace of dimorphism. [details]Etymology Combination of the Latin word placentinus, for inhabitant of Placentia (today Piacenza), the most important town in the area where the majority of the specimens were collected, and the suffix echinus (Latin word for sea urchin) [details] Grammatical gender masculine [details] |