Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Trochonema umbilicata

Gastropoda - Murchisoniina - Trochonematidae

Taxonomy
Pleurotomaria umbilicata was named by Hall (1847). It is not extant. It is the type species of Trochonema.

It was recombined as Trochonema umbilicatum by Twenhofel (1928), Pitcher (1939), Nelson (1963) and Liberty (1969); it was misspelled as Trochonema unbilicatum by Sloan and Webers (1987); it was recombined as Trochonema umbilicata by Salter (1859), Ulrich and Scofield (1897), Wilson (1951), Wagner (1995), Wagner (1999) and Wagner (2023).

Synonymy list
YearName and author
1847Pleurotomaria umbilicata Hall pp. 43, 175 figs. pl. 10 f. 9a-b; pl. 38 f. 1a-g
1859Trochonema umbilicata Salter p. 27
1897Trochonema umbilicata Ulrich and Scofield pp. 1047-1048 figs. pl. 77 f. 1-3. 7-8
1928Trochonema umbilicatum Twenhofel p. 252
1939Trochonema umbilicatum Pitcher p. 101
1951Trochonema umbilicata Wilson p. 70 figs. pl. 13 f. 3-6
1963Trochonema umbilicatum Nelson p. 64
1969Trochonema umbilicatum Liberty
1987Trochonema unbilicatum Sloan and Webers p. 185
1995Trochonema umbilicata Wagner p. 177
1999Trochonema umbilicata Wagner p. 29
2023Trochonema umbilicata Wagner p. 2144

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropoda
subclassOrthogastropoda
orderMurchisoniina
superfamilyTrochonematoidea()
familyTrochonematidae
genusTrochonema
speciesumbilicata()

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Trochonema umbilicata Hall 1847
show all | hide all
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragoniteo
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Adult height: 10 to < 100g
Folds: noneg
Ribbing: minorg
Spines: noneg
Internal reinforcement: noneg
Locomotion: actively mobileo
Life habit: epifaunalo
Diet: detritivoreo
Vision: limitedo
Created: 2009-06-06 08:25:05
Modified: 2009-06-06 10:25:05
Source: g = genus, o = order
References: Hendy 2009, Bambach et al. 2007

Age range: base of the Caradoc to the top of the Cautleyan or 458.40000 to 448.80000 Ma

Collections (61 total)


Time interval Ma Country or state Original ID and collection number
Chazyan470.0 - 457.3Canada (Ontario) Trochonema umbilicatum (172204)
Chazyan470.0 - 457.3Canada (Quebec) Trochonema umbilicatum (172352)
Caradoc458.4 - 449.5USA (Virginia) Trochonema umbilicatum (34277 34279 34281 34324 34326 34327 34328)
Turinian457.3 - 453.8Canada (Ontario) Trochonema umbilicata (104422 184671) Trochonema umbilicatum (26188 184970 185476 185478 185480)
Turinian457.3 - 453.8USA (Indiana) Trochonema umbilicatum (104277)
Blackriveran457.3 - 449.6Canada (Quebec) Trochonema umbilicatum (63816)
Blackriveran457.3 - 449.6USA (Illinois, Iowa) Trochonema unbilicatum (23613 23614 23615)
Blackriveran457.3 - 449.6USA (Minnesota) Trochonema umbilicatum (23555) Trochonema unbilicatum (23556)
Blackriveran457.3 - 449.6USA (Tennessee) Trochonema umbilicatum (5331)
Blackriveran457.3 - 449.6USA (Illinois) Trochonema umbilicata (155374)
Blackriveran - Rocklandian457.3 - 449.6USA (Minnesota) Trochonema unbilicatum (23557)
Blackriveran - Rocklandian457.3 - 449.6USA (Illinois, Iowa) Trochonema unbilicatum (23621)
Kirkfieldian457.3 - 449.6USA (Illinois, Iowa) Trochonema unbilicatum (23623 23644)
Kirkfieldian457.3 - 449.6Canada (Ontario) Trochonema umbilicatum (26192)
Rocklandian - Kirkfieldian457.3 - 449.6USA (Illinois, Iowa) Trochonema unbilicatum (23622)
Rocklandian - Kirkfieldian457.3 - 449.6USA (Minnesota) Trochonema unbilicatum (23558)
Shermanian457.3 - 449.6USA (Minnesota) Trochonema umbilicatum (23092) Trochonema unbilicatum (23579 23584)
Shermanian457.3 - 449.6USA (Illinois, Iowa) Trochonema unbilicatum (23651 23653 23656 23659 23664 23667 23668 23670)
Wildernessian457.3 - 449.6Canada (Northwest Territories) Trochonema umbilicatum (26957)
Chatfieldian453.8 - 451.0Canada (Ontario) Trochonema umbilicatum (26270 26271 26273 26277 185002 185268)
Edenian451.0 - 450.2USA (Minnesota) Trochonema unbilicatum (23588)
Edenian451.0 - 450.2USA (Illinois, Iowa) Trochonema unbilicatum (23678 23679)
Edenian - Maysvillian451.0 - 449.6Canada (Ontario) Trochonema umbilicatum (26293 26294)
Maysvillian450.2 - 449.6Canada (Ontario) Trochonema umbilicatum (26296)
Maysvillian - Richmondian450.2 - 445.5USA (Colorado) Trochonema umbilicatum (10338)
Richmondian449.6 - 445.5Canada (Manitoba) Trochonema umbilicata (172791)
Richmondian449.6 - 445.5Canada (Quebec) Trochonema umbilicatum (63559 63625)
Cautleyan449.2 - 448.8Greenland (Washington Land) Trochonema umbilicatum (24162)