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Tessarolax

Gastropoda - Aporrhaidae

Taxonomy
Tessarolax was named by Gabb (1864) [Sepkoski's age data: K Haut K Maes-l Sepkoski's reference number: 909,1074]. Its type is Tessarolax distorta.

It was reranked as Aporrhais (Tessarolax) by Wollemann (1912).

It was assigned to Aporrhais by Wollemann (1912); to Neotaenioglossa by Sepkoski (2002); to Pugnellinae by Kollmann (2009); and to Aporrhainae by Saul and Squires (2015).

Synonymy list
YearName and author
1864Tessarolax Gabb p. 126
1912Aporrhais (Tessarolax) Wollemann
2002Tessarolax Sepkoski
2009Tessarolax Kollmann p. 54
2015Tessarolax Saul and Squires pp. 42 - 45

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classGastropoda
RankNameAuthor
subclassCaenogastropoda(Cox 1959)
—Sorbeoconcha(Ponder and Lindberg 1997)
—Hypsogastropoda(Ponder and Lindberg 1997)
superorderLatrogastropodaRiedel 2000
superfamilyStromboidea(Rafinesque 1815)
familyAporrhaidaeGray 1850
subfamilyAporrhainaeGray 1850
genusTessarolax

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.

G. †Tessarolax Gabb 1864
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†Aporrhais (Tessarolax) ebrayi Pchelintsev 1926
†Tessarolax alaskana Saul and Squires 2015
†Tessarolax bicarinata Deshayes in Leymerie 1842
†Tessarolax bullardi Saul and Squires 2015
†Tessarolax distorta Gabb 1864
†Tessarolax gabbi Saul and Squires 2015
†Tessarolax grahami Saul and Squires 2015
†Tessarolax incrustata Anderson and Hanna 1935
†Tessarolax louellae Saul and Squires 2015
†Tessarolax retusa Sowerby 1836
†Tessarolax teleos Saul and Squires 2015
†Tessarolax trinalis Murphy and Rodda 1960
Diagnosis
ReferenceDiagnosis
L. R. Saul and R. L. Squires 2015Mature shell with four, long, curved, unbranched, widely spaced, unflanged, canaliculate (internally channeled) digitations: three extending from outer lip and one engulfing rostrum. Apical digitation considerably exceeds height of spire and extends from apical corner of aperture on outer lip side of shell, angles across spire, and leaves spire near tip on a trajectory away from substrate (both this digitation and its adjoining apical-tip area became encrusted in Late Cretaceous). Posterior and anterior outer lip digitations represent continuous extensions of posterior and anterior carinae of last whorl; ventral side of latter digitation with localized callus knob on post–early Coniacian species. Rostral digitation engulfs rostrum and becomes very elongate; spiral ornamentation predominates.
Measurements
No measurements are available
Composition: aragonitec
Locomotion: slow-movingf
Life habit: semi-infaunalf
Diet: detritivoref
Vision: limitedc
Created: 2009-05-20 05:55:58
Modified: 2009-10-09 22:54:17
Source: f = family, c = class
Reference: Kiessling 2004

Age range

Maximum range based only on fossils: base of the Hauterivian to the top of the Thanetian or 132.90000 to 56.00000 Ma
Minimum age of oldest fossil (stem group age): 129.4 Ma

Collections (53 total)


Time interval Ma Country or state Original ID and collection number
Hauterivian132.9 - 129.4USA (California) T. bicarinata (83590)
Hauterivian - Early/Lower Barremian132.9 - 125.45USA (California) T. bicarinata (216287 216291 216295)
Barremian129.4 - 125.0Germany T. sp. (67175 67176)
Aptian125.0 - 113.0United Kingdom (England) T. gardneri (1866) T. moreausiana (1851) T. moreausianum (1836) T. moreausianum, T. fittoni (1747)
Late/Upper Aptian122.46 - 113.0United Kingdom (England) T. moreausianum, T. sp. (162252)
Early/Lower Aptian121.4 - 122.46United Kingdom (England) T. moreausianum (235315)
Albian113.0 - 100.5Switzerland Pterocera bicarinata (2167)
Albian113.0 - 100.5France Pterocera bicarinata (2166)
Early/Lower Albian112.03 - 109.0Madagascar (Mahajanga) T. retusa (60071 60072)
Early/Lower Albian112.03 - 109.0United Kingdom (England) T. retusum (1783 1862)
Early/Lower Albian112.03 - 109.0France T. bicornis (56561)
Middle Albian109.0 - 105.3United Kingdom (England) T. fittoni (1765)
Late/Upper Albian105.3 - 99.6United Kingdom (England) T. retusa (6280)
Late/Upper Albian105.3 - 99.6Mozambique T. retusus (174805 174809)
Late/Upper Albian105.3 - 99.6France T. bicarinata (58885)
Late/Upper Cretaceous100.5 - 66.0USA (California) T. sp. (185757)
Early/Lower Cenomanian99.6 - 93.5USA (California) T. trinalis (1791 1802 1804 1805 1806 1807 1808 1809 1810)
Coniacian89.8 - 86.3USA (California) T. distorta (44232 44233)
Coniacian - Santonian89.8 - 83.6USA (California) T. bullardi (185441)
Santonian86.3 - 83.6USA (California) T. distorta (44238)
Late/Upper Santonian85.8 - 83.5USA (California) T. bullardi (86815)
Early/Lower Campanian83.5 - 70.6USA (California) T. distorta (3885)
Late/Upper Campanian83.5 - 70.6USA (California) T. distorta (86819) T. sp. (185396)
Late/Upper Campanian83.5 - 70.6Canada (British Colombia) T. louellae (191629)
Late/Upper Campanian83.5 - 70.6Canada (British Columbia) T. louellae (84196)
Middle Campanian83.5 - 70.6USA (California) T. distorta (144779 185156 220926)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0Mexico (Baja California) T. incrustata (200117)
Maastrichtian72.1 - 66.0USA (California) T. distorta (83774) T. teleos (185191)
Late/Upper Maastrichtian70.6 - 66.0USA (California) T. teleos (220396)
Paleocene66.0 - 56.0USA (California) Surcula inconspicua (190800)
Thanetian59.2 - 56.0USA (California) T. inconspicua (52612)