Temnocidaris (Stereocidaris) texana Thompson Date?
Plate: TesTe-10
Series: Upper Cretaceous Group: Washita Formation: Boracho
Locale: Unknown County: Unknown Stage: Cenomanian
Length: xxx mm Height: xxx mm
Specimen in photo: NPL 83050 Holotype
Collector: Frank Crane Spine.
Repository: Non-vertebrate Paleo. Lab., Univ. of Texas
HOLOTYPE INFO:
Holotype: NPL 83050.
Locality: Unknown location in Texas (likely West Texas based on formation assignment).
Stratigraphy: Boracho Formation, Washita Group.
SYSTEMATIC PALEONTOLOGY – TAXONOMY
Class: Echinoidea Leske, 1778
Subclass: Cidaroidea Smith, 1984
Order: Cidaroida Claus, 1880
Family: Cidaridae Gray, 1825
Subfamily: Stereocidarinae Lambert, 1900
Genus: TEMNOCIDARIS Cotteau, 1863
Subgenus: STEREOCIDARIS Pomel, 1883
Species: Temnocidaris (Stereocidaris) texana Thompson, 2016
TYPE SPECIES: Cidaris cretosa Mantell, 1822
DIAGNOSIS
A Temnocidaris (Stereocidaris) species described from a stout, fusiform spine. Characterized by dense rows of spinules and a narrow, naked neck.
STRATIGRAPHICAL OCCURRENCE & DISTRIBUTION
Group: Washita
Formations: Boracho Formation (presumed).
Stratigraphic Units: Upper Cretaceous, Cenomanian.
Counties: Unknown; likely Culberson/Hudspeth area.
Abundance: Rare; only one specimen known.
DESCRIPTION
SPINES: Shape: Fusiform, stout, and small. Widest at the midpoint. Ornamentation: Ribbed with dense rows of spinules. Base: Milled ring is slightly larger than the base. Neck: Narrow and naked.
SPECIMENS STUDIED & CONDITION: One specimen studied. Holotype NPL 83050 (Spine). Found by Frank Crane.
ETYMOLOGY
Named for the state of Texas.
REMARKS & COMPARISONS
Remarks: This species is established based on spine morphology. The stout, fusiform shape with dense spinules distinguishes it from other associated cidarid spines in the Washita Group.
Gender Emendation: The specific epithet texanus (Masculine) was emended to texana (Feminine) to agree with the genus Temnocidaris.
Plate: TesTe-10
Series: Upper Cretaceous Group: Washita Formation: Boracho
Locale: Unknown County: Unknown Stage: Cenomanian
Length: xxx mm Height: xxx mm
Specimen in photo: NPL 83050 Holotype
Collector: Frank Crane Spine.
Repository: Non-vertebrate Paleo. Lab., Univ. of Texas
HOLOTYPE INFO:
Holotype: NPL 83050.
Locality: Unknown location in Texas (likely West Texas based on formation assignment).
Stratigraphy: Boracho Formation, Washita Group.
SYSTEMATIC PALEONTOLOGY – TAXONOMY
Class: Echinoidea Leske, 1778
Subclass: Cidaroidea Smith, 1984
Order: Cidaroida Claus, 1880
Family: Cidaridae Gray, 1825
Subfamily: Stereocidarinae Lambert, 1900
Genus: TEMNOCIDARIS Cotteau, 1863
Subgenus: STEREOCIDARIS Pomel, 1883
Species: Temnocidaris (Stereocidaris) texana Thompson, 2016
TYPE SPECIES: Cidaris cretosa Mantell, 1822
DIAGNOSIS
A Temnocidaris (Stereocidaris) species described from a stout, fusiform spine. Characterized by dense rows of spinules and a narrow, naked neck.
STRATIGRAPHICAL OCCURRENCE & DISTRIBUTION
Group: Washita
Formations: Boracho Formation (presumed).
Stratigraphic Units: Upper Cretaceous, Cenomanian.
Counties: Unknown; likely Culberson/Hudspeth area.
Abundance: Rare; only one specimen known.
DESCRIPTION
SPINES: Shape: Fusiform, stout, and small. Widest at the midpoint. Ornamentation: Ribbed with dense rows of spinules. Base: Milled ring is slightly larger than the base. Neck: Narrow and naked.
SPECIMENS STUDIED & CONDITION: One specimen studied. Holotype NPL 83050 (Spine). Found by Frank Crane.
ETYMOLOGY
Named for the state of Texas.
REMARKS & COMPARISONS
Remarks: This species is established based on spine morphology. The stout, fusiform shape with dense spinules distinguishes it from other associated cidarid spines in the Washita Group.
Gender Emendation: The specific epithet texanus (Masculine) was emended to texana (Feminine) to agree with the genus Temnocidaris.
