diff --git a/src/quadrature/gl_triangles.jl b/src/quadrature/gl_triangles.jl
new file mode 100644
index 0000000..2475750
--- /dev/null
+++ b/src/quadrature/gl_triangles.jl
@@ -0,0 +1,245 @@
+# This file is a part of JuliaFEM.
+# License is MIT: see https://github.com/JuliaFEM/JuliaFEM.jl/blob/master/LICENSE.md
+
+"""
+Gauss-Legendre quadrature rules for triangular elements.
+
+This file implements quadrature rules for 2D triangular reference elements
+in the parametric domain [0,1]² with constraint ξ + η ≤ 1.
+
+# Available Rules
+- `GaussLegendre{1}()`: 1-point rule (centroid), exact for linear
+- `GaussLegendre{2}()`: 3-point rule, exact for quadratic (default variant)
+- `GaussLegendre{2,:B}()`: 3-point alternative (midpoint variant)
+- `GaussLegendre{3}()`: 4-point rule, exact for cubic (default variant)
+- `GaussLegendre{3,:B}()`: 4-point alternative (has negative weight!)
+- `GaussLegendre{4}()`: 6-point rule, exact for quartic
+- `GaussLegendre{5}()`: 7-point rule, exact for quintic
+- `GaussLegendre{6}()`: 12-point rule, exact for 6th degree
+
+# Notes
+- Reference triangle has vertices at (0,0), (1,0), (0,1)
+- All weights sum to 0.5 (area of reference triangle)
+- Variant :B rules exist for historical reasons, default is recommended
+- Negative weights in GLTRI4B may cause issues, use default GaussLegendre{3}()
+
+See also: [`GaussLegendre`](@ref), [`QuadraturePoint`](@ref)
+"""
+
+# ============================================================================
+# GaussLegendre{1}: 1-point rule (centroid)
+# ============================================================================
+
+"""
+    get_quadrature_points(::Type{Triangle}, ::GaussLegendre{1})
+
+1-point Gauss-Legendre rule for triangle (centroid).
+Exact for linear polynomials (degree 1).
+"""
+@inline function get_quadrature_points(::Type{Triangle}, ::GaussLegendre{1,V}) where V
+    return SVector(
+        QuadraturePoint(Vec{2}(1/3, 1/3), 0.5)
+    )
+end
+
+# ============================================================================
+# GaussLegendre{2}: 3-point rules (two variants)
+# ============================================================================
+
+"""
+    get_quadrature_points(::Type{Triangle}, ::GaussLegendre{2})
+
+3-point Gauss-Legendre rule for triangle (default variant).
+Exact for quadratic polynomials (degree 2).
+Points located at edge centers of sub-triangles.
+"""
+@inline function get_quadrature_points(::Type{Triangle}, ::GaussLegendre{2,:default})
+    w = 1/6
+    return SVector(
+        QuadraturePoint(Vec{2}(2/3, 1/6), w),
+        QuadraturePoint(Vec{2}(1/6, 2/3), w),
+        QuadraturePoint(Vec{2}(1/6, 1/6), w)
+    )
+end
+
+"""
+    get_quadrature_points(::Type{Triangle}, ::GaussLegendre{2,:B})
+
+3-point Gauss-Legendre rule for triangle (variant B).
+Exact for quadratic polynomials (degree 2).
+Points located at edge midpoints.
+"""
+@inline function get_quadrature_points(::Type{Triangle}, ::GaussLegendre{2,:B})
+    w = 1/6
+    return SVector(
+        QuadraturePoint(Vec{2}(0.0, 1/2), w),
+        QuadraturePoint(Vec{2}(1/2, 0.0), w),
+        QuadraturePoint(Vec{2}(1/2, 1/2), w)
+    )
+end
+
+# ============================================================================
+# GaussLegendre{3}: 4-point rules (two variants)
+# ============================================================================
+
+"""
+    get_quadrature_points(::Type{Triangle}, ::GaussLegendre{3})
+
+4-point Gauss-Legendre rule for triangle (default variant).
+Exact for cubic polynomials (degree 3).
+All weights positive.
+"""
+@inline function get_quadrature_points(::Type{Triangle}, ::GaussLegendre{3,:default})
+    return SVector(
+        QuadraturePoint(Vec{2}(0.15505102572168219, 0.17855872826361642), 0.15902069087198858),
+        QuadraturePoint(Vec{2}(0.64494897427831781, 0.07503111022260812), 0.09097930912801142),
+        QuadraturePoint(Vec{2}(0.15505102572168219, 0.66639024601470139), 0.15902069087198858),
+        QuadraturePoint(Vec{2}(0.64494897427831781, 0.28001991549907407), 0.09097930912801142)
+    )
+end
+
+"""
+    get_quadrature_points(::Type{Triangle}, ::GaussLegendre{3,:B})
+
+4-point Gauss-Legendre rule for triangle (variant B).
+Exact for cubic polynomials (degree 3).
+
+**WARNING:** This rule has one negative weight (-27/96), which may cause
+numerical issues. Use default variant instead unless specifically needed.
+"""
+@inline function get_quadrature_points(::Type{Triangle}, ::GaussLegendre{3,:B})
+    return SVector(
+        QuadraturePoint(Vec{2}(1/3, 1/3), -27/96),  # Negative weight!
+        QuadraturePoint(Vec{2}(1/5, 1/5),  25/96),
+        QuadraturePoint(Vec{2}(1/5, 3/5),  25/96),
+        QuadraturePoint(Vec{2}(3/5, 1/5),  25/96)
+    )
+end
+
+# ============================================================================
+# GaussLegendre{4}: 6-point rule
+# ============================================================================
+
+"""
+    get_quadrature_points(::Type{Triangle}, ::GaussLegendre{4})
+
+6-point Gauss-Legendre rule for triangle.
+Exact for quartic polynomials (degree 4).
+"""
+@inline function get_quadrature_points(::Type{Triangle}, ::GaussLegendre{4,V}) where V
+    P1 = 0.11169079483905
+    P2 = 0.0549758718227661
+    A = 0.445948490915965
+    B = 0.091576213509771
+
+    return SVector(
+        QuadraturePoint(Vec{2}(B, B), P2),
+        QuadraturePoint(Vec{2}(1.0 - 2.0*B, B), P2),
+        QuadraturePoint(Vec{2}(B, 1.0 - 2.0*B), P2),
+        QuadraturePoint(Vec{2}(A, 1.0 - 2.0*A), P1),
+        QuadraturePoint(Vec{2}(A, A), P1),
+        QuadraturePoint(Vec{2}(1.0 - 2.0*A, A), P1)
+    )
+end
+
+# ============================================================================
+# GaussLegendre{5}: 7-point rule
+# ============================================================================
+
+"""
+    get_quadrature_points(::Type{Triangle}, ::GaussLegendre{5})
+
+7-point Gauss-Legendre rule for triangle.
+Exact for quintic polynomials (degree 5).
+Includes centroid point.
+"""
+@inline function get_quadrature_points(::Type{Triangle}, ::GaussLegendre{5,V}) where V
+    A = 0.470142064105115
+    B = 0.101286507323456
+    P1 = 0.066197076394253
+    P2 = 0.062969590272413
+
+    return SVector(
+        QuadraturePoint(Vec{2}(1/3, 1/3), 9/80),
+        QuadraturePoint(Vec{2}(A, A), P1),
+        QuadraturePoint(Vec{2}(1.0 - 2.0*A, A), P1),
+        QuadraturePoint(Vec{2}(A, 1.0 - 2.0*A), P1),
+        QuadraturePoint(Vec{2}(B, B), P2),
+        QuadraturePoint(Vec{2}(1.0 - 2.0*B, B), P2),
+        QuadraturePoint(Vec{2}(B, 1.0 - 2.0*B), P2)
+    )
+end
+
+# ============================================================================
+# GaussLegendre{6}: 12-point rule
+# ============================================================================
+
+"""
+    get_quadrature_points(::Type{Triangle}, ::GaussLegendre{6})
+
+12-point Gauss-Legendre rule for triangle.
+Exact for 6th degree polynomials.
+"""
+@inline function get_quadrature_points(::Type{Triangle}, ::GaussLegendre{6,V}) where V
+    A = 0.063089014491502
+    B = 0.249286745170910
+    C = 0.310352451033785
+    D = 0.053145049844816
+    P1 = 0.025422453185103
+    P2 = 0.058393137863189
+    P3 = 0.041425537809187
+
+    return SVector(
+        QuadraturePoint(Vec{2}(A, A), P1),
+        QuadraturePoint(Vec{2}(1.0 - 2.0*A, A), P1),
+        QuadraturePoint(Vec{2}(A, 1.0 - 2.0*A), P1),
+        QuadraturePoint(Vec{2}(B, B), P2),
+        QuadraturePoint(Vec{2}(1.0 - 2.0*B, B), P2),
+        QuadraturePoint(Vec{2}(B, 1.0 - 2.0*B), P2),
+        QuadraturePoint(Vec{2}(C, D), P3),
+        QuadraturePoint(Vec{2}(D, C), P3),
+        QuadraturePoint(Vec{2}(1.0 - C - D, C), P3),
+        QuadraturePoint(Vec{2}(1.0 - C - D, D), P3),
+        QuadraturePoint(Vec{2}(C, 1.0 - C - D), P3),
+        QuadraturePoint(Vec{2}(D, 1.0 - C - D), P3)
+    )
+end
+
+# ============================================================================
+# Legacy symbol-based API (deprecated, kept for backwards compatibility)
+# ============================================================================
+
+# These map old :GLTRI symbols to new API
+get_quadrature_points(::Type{Val{:GLTRI1}}) =
+    get_quadrature_points(Triangle, GaussLegendre{1}())
+
+get_quadrature_points(::Type{Val{:GLTRI3}}) =
+    get_quadrature_points(Triangle, GaussLegendre{2}())
+
+get_quadrature_points(::Type{Val{:GLTRI3B}}) =
+    get_quadrature_points(Triangle, GaussLegendre{2,:B}())
+
+get_quadrature_points(::Type{Val{:GLTRI4}}) =
+    get_quadrature_points(Triangle, GaussLegendre{3}())
+
+get_quadrature_points(::Type{Val{:GLTRI4B}}) =
+    get_quadrature_points(Triangle, GaussLegendre{3,:B}())
+
+get_quadrature_points(::Type{Val{:GLTRI6}}) =
+    get_quadrature_points(Triangle, GaussLegendre{4}())
+
+get_quadrature_points(::Type{Val{:GLTRI7}}) =
+    get_quadrature_points(Triangle, GaussLegendre{5}())
+
+get_quadrature_points(::Type{Val{:GLTRI12}}) =
+    get_quadrature_points(Triangle, GaussLegendre{6}())
+
+# Order queries (deprecated)
+get_order(::Type{Val{:GLTRI1}}) = 1
+get_order(::Type{Val{:GLTRI3}}) = 2
+get_order(::Type{Val{:GLTRI3B}}) = 2
+get_order(::Type{Val{:GLTRI4}}) = 3
+get_order(::Type{Val{:GLTRI4B}}) = 3
+get_order(::Type{Val{:GLTRI6}}) = 4
+get_order(::Type{Val{:GLTRI7}}) = 5
+get_order(::Type{Val{:GLTRI12}}) = 6
diff --git a/src/quadrature/gltri.jl b/src/quadrature/gltri.jl
deleted file mode 100644
index 7f659f5..0000000
--- a/src/quadrature/gltri.jl
+++ /dev/null
@@ -1,131 +0,0 @@
-# This file is a part of JuliaFEM.
-# License is MIT: see https://github.com/JuliaFEM/FEMQuad.jl/blob/master/LICENSE
-
-### Gauss quadrature rules for triangular elements
-
-""" Gauss-Legendre quadrature, 1 point rule on triangle. """
-function get_quadrature_points(::Type{Val{:GLTRI1}})
-    weights = (0.5, )
-    points = ((1.0/3.0, 1.0/3.0), )
-    return zip(weights, points)
-end
-
-function get_order(::Type{Val{:GLTRI1}})
-    return 1
-end
-
-""" Gauss-Legendre quadrature, 3 point rule on triangle. """
-function get_quadrature_points(::Type{Val{:GLTRI3}})
-    weights = (1.0/6.0, 1.0/6.0, 1.0/6.0)
-    points = (
-              (2.0/3.0, 1.0/6.0),
-              (1.0/6.0, 2.0/3.0),
-              (1.0/6.0, 1.0/6.0)
-             )
-    return zip(weights, points)
-end
-
-function get_order(::Type{Val{:GLTRI3}})
-    return 2
-end
-
-""" Gauss-Legendre quadrature, 3 point rule on triangle. """
-function get_quadrature_points(::Type{Val{:GLTRI3B}})
-    weights = (1.0/6.0, 1.0/6.0, 1.0/6.0)
-    points = (
-              (0.0, 1.0/2.0),
-              (1.0/2.0, 0.0),
-              (1.0/2.0, 1.0/2.0)
-             )
-    return zip(weights, points)
-end
-
-function get_order(::Type{Val{:GLTRI3B}})
-    return 2
-end
-
-""" Gauss-Legendre quadrature, 4 point rule on triangle. """
-function get_quadrature_points(::Type{Val{:GLTRI4}})
-    weights = (
-        1.5902069087198858469718450103758e-01,
-        9.0979309128011415302815498962418e-02,
-        1.5902069087198858469718450103758e-01,
-        9.0979309128011415302815498962418e-02)
-    points = (
-        (1.5505102572168219018027159252941e-01, 1.7855872826361642311703513337422e-01),
-        (6.4494897427831780981972840747059e-01, 7.5031110222608118177475598324603e-02),
-        (1.5505102572168219018027159252941e-01, 6.6639024601470138670269327409637e-01),
-        (6.4494897427831780981972840747059e-01, 2.8001991549907407200279599420481e-01))
-    return zip(weights, points)
-end
-
-function get_order(::Type{Val{:GLTRI4}})
-    return 3
-end
-
-""" Gauss-Legendre quadrature, 4 point rule on triangle. """
-function get_quadrature_points(::Type{Val{:GLTRI4B}})
-    weights = (-27.0/96.0, 25.0/96.0, 25.0/96.0, 25.0/96.0)
-    points = (
-              (1.0/3.0, 1.0/3.0),
-              (1.0/5.0, 1.0/5.0),
-              (1.0/5.0, 3.0/5.0),
-              (3.0/5.0, 1.0/5.0))
-    return zip(weights, points)
-end
-
-function get_order(::Type{Val{:GLTRI4B}})
-    return 3
-end
-
-""" Gauss-Legendre quadrature, 6 point rule on triangle. """
-function get_quadrature_points(::Type{Val{:GLTRI6}})
-    P1 = 0.11169079483905
-    P2 = 0.0549758718227661
-    A = 0.445948490915965
-    B = 0.091576213509771
-    weights = (P2, P2, P2, P1, P1, P1)
-    points = ((B, B), (1.0-2.0*B, B), (B, 1.0-2.0*B),
-              (A, 1.0-2*A), (A, A), (1.0 - 2.0*A, A))
-    return zip(weights, points)
-end
-
-function get_order(::Type{Val{:GLTRI6}})
-    return 4
-end
-
-""" Gauss-Legendre quadrature, 7 point rule on triangle. """
-function get_quadrature_points(::Type{Val{:GLTRI7}})
-    A = 0.470142064105115
-    B = 0.101286507323456
-    P1 = 0.066197076394253
-    P2 = 0.062969590272413
-    weights = (9/80, P1, P1, P1, P2, P2, P2)
-    points = ((1/3, 1/3), (A, A), (1.0-2.0*A, A), (A, 1.0-2.0*A),
-              (B, B), (1.0-2.0*B, B), (B, 1.0-2.0*B))
-    return zip(weights, points)
-end
-
-function get_order(::Type{Val{:GLTRI7}})
-    return 5
-end
-
-""" Gauss-Legendre quadrature, 12 point rule on triangle. """
-function get_quadrature_points(::Type{Val{:GLTRI12}})
-    A = 0.063089014491502
-    B = 0.249286745170910
-    C = 0.310352451033785
-    D = 0.053145049844816
-    P1 = 0.025422453185103
-    P2 = 0.058393137863189
-    P3 = 0.041425537809187
-    weights = (P1, P1, P1, P2, P2, P2, P3, P3, P3, P3, P3, P3)
-    points = ((A, A), (1.0-2.0*A, A), (A, 1.0-2.0*A), (B, B), (1.0-2.0*B, B),
-              (B, 1.0-2.0*B), (C, D), (D, C), (1.0-C-D, C), (1.0-C-D, D),
-              (C, 1.0-C-D), (D, 1.0-C-D))
-    return zip(weights, points)
-end
-
-function get_order(::Type{Val{:GLTRI12}})
-    return 6
-end