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- Tommotiid abstract "Tommotiids are Cambrian (Terreneuvian) shelly fossils of uncertain affinity.Unlike most of the small shelly fauna, tommotiids are mineralised with calcium phosphate rather than calcium carbonate. Tommotiids have a wide range of sclerite shapes and internal structures, and may in fact represent a polyphyletic set of lineages, having independently developed phosphatic scleritomes rather than inheriting them from a common ancestor. Others consider them to be a sister group to the brachiopods. Indeed, Micrina and Paterimitra possess bivalved shells in their larval phases, which preserve characters that would position them in the Linguliformea and Rhynchonelliformea stem lineages respectively. This would indicate that the brachiopod shell represents the retention of a larval character.For a long part of their history, the tommotiids were only known from disarticulated shells - a complete organism had not been found. The 2008 discovery of Eccentrotheca offered the first insight into a complete organism, and permitted a reconstruction of the animal as a sessile, tube-like animal made up of a spiral of overlapping plates. Articulated specimens of Paterimitra, discovered a year later, suggest a similar form and lifestyle - it is possible that many tommotiids need redescribing as sessile tube-dwellers.These discoveries have produced an alternative model for the origin of the brachiopods; it suggested that they evolved by the reduction of sessile tube-like organisms, until only two shells were left. This contrasts with the brachiopod fold hypothesis which suggests that they formed by the folding of a halkieriid-like organism.".
- Tommotiid wikiPageID "22240773".
- Tommotiid wikiPageRevisionID "593201668".
- Tommotiid hasPhotoCollection Tommotiid.
- Tommotiid name "Tommotiids".
- Tommotiid taxon "Tommitiida".
- Tommotiid subject Category:Cambrian_animals.
- Tommotiid type Animal100015388.
- Tommotiid type CambrianAnimals.
- Tommotiid type LivingThing100004258.
- Tommotiid type Object100002684.
- Tommotiid type Organism100004475.
- Tommotiid type PhysicalEntity100001930.
- Tommotiid type Whole100003553.
- Tommotiid comment "Tommotiids are Cambrian (Terreneuvian) shelly fossils of uncertain affinity.Unlike most of the small shelly fauna, tommotiids are mineralised with calcium phosphate rather than calcium carbonate. Tommotiids have a wide range of sclerite shapes and internal structures, and may in fact represent a polyphyletic set of lineages, having independently developed phosphatic scleritomes rather than inheriting them from a common ancestor. Others consider them to be a sister group to the brachiopods.".
- Tommotiid label "Tommotiid".
- Tommotiid label "托莫特壳类".
- Tommotiid sameAs m.05q9km3.
- Tommotiid sameAs Q7819141.
- Tommotiid sameAs Q7819141.
- Tommotiid sameAs Tommotiid.
- Tommotiid wasDerivedFrom Tommotiid?oldid=593201668.
- Tommotiid isPrimaryTopicOf Tommotiid.