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Tessarolax distorta

Gastropoda - Aporrhaidae

Taxonomy
Tessarolax distorta was named by Gabb (1864). It is a 3D body fossil. Its type locality is "Chico beds" - Tuscan Springs, Tehama, which is in a Coniacian coastal siliciclastic in California. It is the type species of Tessarolax.

Sister species lacking formal opinion data
T. retusus

Synonymy list
YearName and author
1864Tessarolax distorta Gabb
1927Tessarolax distorta Stewart pp. 363 - 364 figs. Plate XXIII, figs. 4, 5
2015Tessarolax distorta Saul and Squires pp. 52 - 54 figs. Figures 50 – 60

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

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.

†Tessarolax distorta Gabb 1864
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Diagnosis
ReferenceDiagnosis
L. R. Saul and R. L. Squires 2015Mature last whorl bicarinate, posterior carina noded; dorsal spine (spike-like) prominent; callus glaze extensive over entire shell; fictavarix narrow, ear-shaped when small, enlarging and extending laterally, but not coalesced with ablabral callus.
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: base of the Coniacian to the top of the Early/Lower Campanian or 89.80000 to 70.60000 Ma

Collections (9 total)


Time interval Ma Country or state Original ID and collection number
Coniacian89.8 - 86.3USA (California) Tessarolax distorta (type locality: 44232 44233)
Santonian86.3 - 83.6USA (California) Tessarolax distorta (44238)
Early/Lower Campanian83.5 - 70.6USA (California) Tessarolax distorta (3885)
Late/Upper Campanian83.5 - 70.6USA (California) Tessarolax distorta (86819)
Middle Campanian83.5 - 70.6USA (California) Tessarolax distorta (144779 185156 220926)
Maastrichtian72.1 - 66.0USA (California) Tessarolax distorta (83774)