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Echinoidea taxon detailsPlacatenellidae Mooi, Martinéz, Del Rio & Ramos, 2018 †
1544804 (urn:lsid:marinespecies.org:taxname:1544804)
accepted
Family
Placatenella Mooi, Martinéz, Del Rio & Ramos, 2018 † (type by original designation)
marine,
fossil only
Mooi, R., Martínez, S.A., del Río, C.J., Ramos, M.I.F. (2018). Late Oligocene–Miocene non-lunulate sand dollars of South America: Revision of abertellid taxa and descriptions of two new families, two new genera, and a new species. <em>Zootaxa.</em> 4369(3): 301., available online at https://doi.org/10.11646/zootaxa.4369.3.1
page(s): 306 [details] Available for editors 
Etymology The genus group name represents a combination of the term "placa", from the Latin for "plate", and the term "catena", Greek...
Etymology The genus group name represents a combination of the term "placa", from the Latin for "plate", and the term "catena", Greek for "chain", signifying continuity of the paired oral interambulacra. There is also an implicit double meaning in the combination, as the first seven letters of the name form the word "placate", suggesting our attempt to put at peace the many problems associated with this, and related problematic South American taxa. [details]
Kroh, A.; Mooi, R. (2024). World Echinoidea Database. Placatenellidae Mooi, Martinéz, Del Rio & Ramos, 2018 †. Accessed at: https://www.marinespecies.org/echinoidea/aphia.php?p=taxdetails&id=1544804 on 2024-05-14
Date action by
original description
Mooi, R., Martínez, S.A., del Río, C.J., Ramos, M.I.F. (2018). Late Oligocene–Miocene non-lunulate sand dollars of South America: Revision of abertellid taxa and descriptions of two new families, two new genera, and a new species. <em>Zootaxa.</em> 4369(3): 301., available online at https://doi.org/10.11646/zootaxa.4369.3.1
page(s): 306 [details] Available for editors From editor or global species database
Diagnosis Scutelline sand dollars with a slight to very pronounced posterior notch; paired oral interambulacra continuous; first postbasicoronal plates in paired oral interambulacra greatly elongated along the interradius, at least four times longer than wide and at least two to three times the length of any other postbasicoronal in the paired columns. [details]Etymology The genus group name represents a combination of the term "placa", from the Latin for "plate", and the term "catena", Greek for "chain", signifying continuity of the paired oral interambulacra. There is also an implicit double meaning in the combination, as the first seven letters of the name form the word "placate", suggesting our attempt to put at peace the many problems associated with this, and related problematic South American taxa. [details] |